diff --git a/.env.example b/.env.example
index 3ecf966..4bb8250 100644
--- a/.env.example
+++ b/.env.example
@@ -1 +1,12 @@
-RINKEBY_RPC_URL=https://rinkeby.infura.io/v3/YOURKEYHERE
\ No newline at end of file
+RINKEBY_RPC_URL=""
+MAINNET_RPC_URL=""
+MUMBAI_RPC_URL=""
+POLYGON_RPC_URL=""
+OWNER_ADDRESS=""
+ACCOUNT_PRIVATE_KEY=""
+NFT_CONTRACT_ADDRESS=""
+ETHERSCAN_API_KEY=""
+BASE_METADATA_URL="https://bafybeidwe2z253wqyrbg4e2vtyqoxvamaav6c62eletqk3h6tu7otloa4a.ipfs.nftstorage.link/metadata/"
+MINT_PRICE="0.002"
+SELECTED_NETWORK=""
+SELECTED_RPC_URL=$MUMBAI_RPC_URL
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index f0b7011..ea0be9f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,8 @@
 node_modules
 gcs.json
-.env
\ No newline at end of file
+.env
+artifacts
+cache
+*.car
+.DS_Store
+release
diff --git a/Contract.json b/Contract.json
deleted file mode 100644
index cc712da..0000000
--- a/Contract.json
+++ /dev/null
@@ -1,37654 +0,0 @@
-{
-  "contractName": "FunkyCrocs",
-  "abi": [
-    {
-      "inputs": [],
-      "stateMutability": "nonpayable",
-      "type": "constructor"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "approved",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "internalType": "bool",
-          "name": "approved",
-          "type": "bool"
-        }
-      ],
-      "name": "ApprovalForAll",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "previousOwner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "newOwner",
-          "type": "address"
-        }
-      ],
-      "name": "OwnershipTransferred",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "address",
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "inputs": [],
-      "name": "MAX_MINT_PER_TX",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "MAX_PRESALE_SUPPLY",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "MAX_SUPPLY",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "a1",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "a2",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "a3",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "baseTokenURI",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "getApproved",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "initial_price",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "isApprovedForAll",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "name",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "owner",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "ownerOf",
-      "outputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "presaleActive",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "price",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "renounceOwnership",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [],
-      "name": "reserved",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "safeTransferFrom",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        },
-        {
-          "internalType": "bytes",
-          "name": "_data",
-          "type": "bytes"
-        }
-      ],
-      "name": "safeTransferFrom",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [],
-      "name": "saleActive",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "internalType": "bool",
-          "name": "approved",
-          "type": "bool"
-        }
-      ],
-      "name": "setApprovalForAll",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "bytes4",
-          "name": "interfaceId",
-          "type": "bytes4"
-        }
-      ],
-      "name": "supportsInterface",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "symbol",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "index",
-          "type": "uint256"
-        }
-      ],
-      "name": "tokenByIndex",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "index",
-          "type": "uint256"
-        }
-      ],
-      "name": "tokenOfOwnerByIndex",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "tokenURI",
-      "outputs": [
-        {
-          "internalType": "string",
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "internalType": "address",
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "internalType": "uint256",
-          "name": "tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "newOwner",
-          "type": "address"
-        }
-      ],
-      "name": "transferOwnership",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [],
-      "name": "whitelistActive",
-      "outputs": [
-        {
-          "internalType": "bool",
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "whitelistReserved",
-      "outputs": [
-        {
-          "internalType": "uint256",
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address",
-          "name": "addr",
-          "type": "address"
-        }
-      ],
-      "name": "tokensOfOwner",
-      "outputs": [
-        {
-          "internalType": "uint256[]",
-          "name": "",
-          "type": "uint256[]"
-        }
-      ],
-      "stateMutability": "view",
-      "type": "function",
-      "constant": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "_amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "mintWhitelist",
-      "outputs": [],
-      "stateMutability": "payable",
-      "type": "function",
-      "payable": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "_amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "mintPresale",
-      "outputs": [],
-      "stateMutability": "payable",
-      "type": "function",
-      "payable": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "_amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "mintToken",
-      "outputs": [],
-      "stateMutability": "payable",
-      "type": "function",
-      "payable": true
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "_amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "mintReserved",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address[]",
-          "name": "_a",
-          "type": "address[]"
-        },
-        {
-          "internalType": "uint256[]",
-          "name": "_amount",
-          "type": "uint256[]"
-        }
-      ],
-      "name": "editWhitelistReserved",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "bool",
-          "name": "val",
-          "type": "bool"
-        }
-      ],
-      "name": "setWhitelistActive",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "bool",
-          "name": "val",
-          "type": "bool"
-        }
-      ],
-      "name": "setPresaleActive",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "bool",
-          "name": "val",
-          "type": "bool"
-        }
-      ],
-      "name": "setSaleActive",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "string",
-          "name": "baseURI",
-          "type": "string"
-        }
-      ],
-      "name": "setBaseURI",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "newPrice",
-          "type": "uint256"
-        }
-      ],
-      "name": "setPrice",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "address[]",
-          "name": "_a",
-          "type": "address[]"
-        }
-      ],
-      "name": "setAddresses",
-      "outputs": [],
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
-    {
-      "inputs": [
-        {
-          "internalType": "uint256",
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "withdrawTeam",
-      "outputs": [],
-      "stateMutability": "payable",
-      "type": "function",
-      "payable": true
-    }
-  ],
-  "metadata": 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-                            "kind": "number",
-                            "nodeType": "YulLiteral",
-                            "src": "50976:1:13",
-                            "type": "",
-                            "value": "0"
-                          }
-                        ],
-                        "functionName": {
-                          "name": "add",
-                          "nodeType": "YulIdentifier",
-                          "src": "50964:3:13"
-                        },
-                        "nodeType": "YulFunctionCall",
-                        "src": "50964:14:13"
-                      },
-                      {
-                        "hexValue": "4552433732313a20746f6b656e20616c7265616479206d696e746564",
-                        "kind": "string",
-                        "nodeType": "YulLiteral",
-                        "src": "50980:30:13",
-                        "type": "",
-                        "value": "ERC721: token already minted"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "mstore",
-                      "nodeType": "YulIdentifier",
-                      "src": "50957:6:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "50957:54:13"
-                  },
-                  "nodeType": "YulExpressionStatement",
-                  "src": "50957:54:13"
-                }
-              ]
-            },
-            "name": "store_literal_in_memory_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57",
-            "nodeType": "YulFunctionDefinition",
-            "parameters": [
-              {
-                "name": "memPtr",
-                "nodeType": "YulTypedName",
-                "src": "50938:6:13",
-                "type": ""
-              }
-            ],
-            "src": "50840:178:13"
-          },
-          {
-            "body": {
-              "nodeType": "YulBlock",
-              "src": "51170:220:13",
-              "statements": [
-                {
-                  "nodeType": "YulAssignment",
-                  "src": "51180:74:13",
-                  "value": {
-                    "arguments": [
-                      {
-                        "name": "pos",
-                        "nodeType": "YulIdentifier",
-                        "src": "51246:3:13"
-                      },
-                      {
-                        "kind": "number",
-                        "nodeType": "YulLiteral",
-                        "src": "51251:2:13",
-                        "type": "",
-                        "value": "28"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "array_storeLengthForEncoding_t_string_memory_ptr_fromStack",
-                      "nodeType": "YulIdentifier",
-                      "src": "51187:58:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "51187:67:13"
-                  },
-                  "variableNames": [
-                    {
-                      "name": "pos",
-                      "nodeType": "YulIdentifier",
-                      "src": "51180:3:13"
-                    }
-                  ]
-                },
-                {
-                  "expression": {
-                    "arguments": [
-                      {
-                        "name": "pos",
-                        "nodeType": "YulIdentifier",
-                        "src": "51352:3:13"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "store_literal_in_memory_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57",
-                      "nodeType": "YulIdentifier",
-                      "src": "51263:88:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "51263:93:13"
-                  },
-                  "nodeType": "YulExpressionStatement",
-                  "src": "51263:93:13"
-                },
-                {
-                  "nodeType": "YulAssignment",
-                  "src": "51365:19:13",
-                  "value": {
-                    "arguments": [
-                      {
-                        "name": "pos",
-                        "nodeType": "YulIdentifier",
-                        "src": "51376:3:13"
-                      },
-                      {
-                        "kind": "number",
-                        "nodeType": "YulLiteral",
-                        "src": "51381:2:13",
-                        "type": "",
-                        "value": "32"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "add",
-                      "nodeType": "YulIdentifier",
-                      "src": "51372:3:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "51372:12:13"
-                  },
-                  "variableNames": [
-                    {
-                      "name": "end",
-                      "nodeType": "YulIdentifier",
-                      "src": "51365:3:13"
-                    }
-                  ]
-                }
-              ]
-            },
-            "name": "abi_encode_t_stringliteral_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57_to_t_string_memory_ptr_fromStack",
-            "nodeType": "YulFunctionDefinition",
-            "parameters": [
-              {
-                "name": "pos",
-                "nodeType": "YulTypedName",
-                "src": "51158:3:13",
-                "type": ""
-              }
-            ],
-            "returnVariables": [
-              {
-                "name": "end",
-                "nodeType": "YulTypedName",
-                "src": "51166:3:13",
-                "type": ""
-              }
-            ],
-            "src": "51024:366:13"
-          },
-          {
-            "body": {
-              "nodeType": "YulBlock",
-              "src": "51567:248:13",
-              "statements": [
-                {
-                  "nodeType": "YulAssignment",
-                  "src": "51577:26:13",
-                  "value": {
-                    "arguments": [
-                      {
-                        "name": "headStart",
-                        "nodeType": "YulIdentifier",
-                        "src": "51589:9:13"
-                      },
-                      {
-                        "kind": "number",
-                        "nodeType": "YulLiteral",
-                        "src": "51600:2:13",
-                        "type": "",
-                        "value": "32"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "add",
-                      "nodeType": "YulIdentifier",
-                      "src": "51585:3:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "51585:18:13"
-                  },
-                  "variableNames": [
-                    {
-                      "name": "tail",
-                      "nodeType": "YulIdentifier",
-                      "src": "51577:4:13"
-                    }
-                  ]
-                },
-                {
-                  "expression": {
-                    "arguments": [
-                      {
-                        "arguments": [
-                          {
-                            "name": "headStart",
-                            "nodeType": "YulIdentifier",
-                            "src": "51624:9:13"
-                          },
-                          {
-                            "kind": "number",
-                            "nodeType": "YulLiteral",
-                            "src": "51635:1:13",
-                            "type": "",
-                            "value": "0"
-                          }
-                        ],
-                        "functionName": {
-                          "name": "add",
-                          "nodeType": "YulIdentifier",
-                          "src": "51620:3:13"
-                        },
-                        "nodeType": "YulFunctionCall",
-                        "src": "51620:17:13"
-                      },
-                      {
-                        "arguments": [
-                          {
-                            "name": "tail",
-                            "nodeType": "YulIdentifier",
-                            "src": "51643:4:13"
-                          },
-                          {
-                            "name": "headStart",
-                            "nodeType": "YulIdentifier",
-                            "src": "51649:9:13"
-                          }
-                        ],
-                        "functionName": {
-                          "name": "sub",
-                          "nodeType": "YulIdentifier",
-                          "src": "51639:3:13"
-                        },
-                        "nodeType": "YulFunctionCall",
-                        "src": "51639:20:13"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "mstore",
-                      "nodeType": "YulIdentifier",
-                      "src": "51613:6:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "51613:47:13"
-                  },
-                  "nodeType": "YulExpressionStatement",
-                  "src": "51613:47:13"
-                },
-                {
-                  "nodeType": "YulAssignment",
-                  "src": "51669:139:13",
-                  "value": {
-                    "arguments": [
-                      {
-                        "name": "tail",
-                        "nodeType": "YulIdentifier",
-                        "src": "51803:4:13"
-                      }
-                    ],
-                    "functionName": {
-                      "name": "abi_encode_t_stringliteral_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57_to_t_string_memory_ptr_fromStack",
-                      "nodeType": "YulIdentifier",
-                      "src": "51677:124:13"
-                    },
-                    "nodeType": "YulFunctionCall",
-                    "src": "51677:131:13"
-                  },
-                  "variableNames": [
-                    {
-                      "name": "tail",
-                      "nodeType": "YulIdentifier",
-                      "src": "51669:4:13"
-                    }
-                  ]
-                }
-              ]
-            },
-            "name": "abi_encode_tuple_t_stringliteral_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57__to_t_string_memory_ptr__fromStack_reversed",
-            "nodeType": "YulFunctionDefinition",
-            "parameters": [
-              {
-                "name": "headStart",
-                "nodeType": "YulTypedName",
-                "src": "51547:9:13",
-                "type": ""
-              }
-            ],
-            "returnVariables": [
-              {
-                "name": "tail",
-                "nodeType": "YulTypedName",
-                "src": "51562:4:13",
-                "type": ""
-              }
-            ],
-            "src": "51396:419:13"
-          }
-        ]
-      },
-      "contents": "{\n\n    function allocate_unbounded() -> memPtr {\n        memPtr := mload(64)\n    }\n\n    function revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() {\n        revert(0, 0)\n    }\n\n    function revert_error_c1322bf8034eace5e0b5c7295db60986aa89aae5e0ea0873e4689e076861a5db() {\n        revert(0, 0)\n    }\n\n    function cleanup_t_bytes4(value) -> cleaned {\n        cleaned := and(value, 0xffffffff00000000000000000000000000000000000000000000000000000000)\n    }\n\n    function validator_revert_t_bytes4(value) {\n        if iszero(eq(value, cleanup_t_bytes4(value))) { revert(0, 0) }\n    }\n\n    function abi_decode_t_bytes4(offset, end) -> value {\n        value := calldataload(offset)\n        validator_revert_t_bytes4(value)\n    }\n\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_bytes4(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function cleanup_t_bool(value) -> cleaned {\n        cleaned := iszero(iszero(value))\n    }\n\n    function abi_encode_t_bool_to_t_bool_fromStack(value, pos) {\n        mstore(pos, cleanup_t_bool(value))\n    }\n\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart , value0) -> tail {\n        tail := add(headStart, 32)\n\n        abi_encode_t_bool_to_t_bool_fromStack(value0,  add(headStart, 0))\n\n    }\n\n    function array_length_t_string_memory_ptr(value) -> length {\n\n        length := mload(value)\n\n    }\n\n    function array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, length) -> updated_pos {\n        mstore(pos, length)\n        updated_pos := add(pos, 0x20)\n    }\n\n    function copy_memory_to_memory(src, dst, length) {\n        let i := 0\n        for { } lt(i, length) { i := add(i, 32) }\n        {\n            mstore(add(dst, i), mload(add(src, i)))\n        }\n        if gt(i, length)\n        {\n            // clear end\n            mstore(add(dst, length), 0)\n        }\n    }\n\n    function round_up_to_mul_of_32(value) -> result {\n        result := and(add(value, 31), not(31))\n    }\n\n    function abi_encode_t_string_memory_ptr_to_t_string_memory_ptr_fromStack(value, pos) -> end {\n        let length := array_length_t_string_memory_ptr(value)\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, length)\n        copy_memory_to_memory(add(value, 0x20), pos, length)\n        end := add(pos, round_up_to_mul_of_32(length))\n    }\n\n    function abi_encode_tuple_t_string_memory_ptr__to_t_string_memory_ptr__fromStack_reversed(headStart , value0) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_string_memory_ptr_to_t_string_memory_ptr_fromStack(value0,  tail)\n\n    }\n\n    function cleanup_t_uint256(value) -> cleaned {\n        cleaned := value\n    }\n\n    function validator_revert_t_uint256(value) {\n        if iszero(eq(value, cleanup_t_uint256(value))) { revert(0, 0) }\n    }\n\n    function abi_decode_t_uint256(offset, end) -> value {\n        value := calldataload(offset)\n        validator_revert_t_uint256(value)\n    }\n\n    function abi_decode_tuple_t_uint256(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_uint256(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function cleanup_t_uint160(value) -> cleaned {\n        cleaned := and(value, 0xffffffffffffffffffffffffffffffffffffffff)\n    }\n\n    function cleanup_t_address(value) -> cleaned {\n        cleaned := cleanup_t_uint160(value)\n    }\n\n    function abi_encode_t_address_to_t_address_fromStack(value, pos) {\n        mstore(pos, cleanup_t_address(value))\n    }\n\n    function abi_encode_tuple_t_address__to_t_address__fromStack_reversed(headStart , value0) -> tail {\n        tail := add(headStart, 32)\n\n        abi_encode_t_address_to_t_address_fromStack(value0,  add(headStart, 0))\n\n    }\n\n    function validator_revert_t_address(value) {\n        if iszero(eq(value, cleanup_t_address(value))) { revert(0, 0) }\n    }\n\n    function abi_decode_t_address(offset, end) -> value {\n        value := calldataload(offset)\n        validator_revert_t_address(value)\n    }\n\n    function abi_decode_tuple_t_addresst_uint256(headStart, dataEnd) -> value0, value1 {\n        if slt(sub(dataEnd, headStart), 64) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 32\n\n            value1 := abi_decode_t_uint256(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function abi_encode_t_uint256_to_t_uint256_fromStack(value, pos) {\n        mstore(pos, cleanup_t_uint256(value))\n    }\n\n    function abi_encode_tuple_t_uint256__to_t_uint256__fromStack_reversed(headStart , value0) -> tail {\n        tail := add(headStart, 32)\n\n        abi_encode_t_uint256_to_t_uint256_fromStack(value0,  add(headStart, 0))\n\n    }\n\n    function abi_decode_tuple_t_addresst_addresst_uint256(headStart, dataEnd) -> value0, value1, value2 {\n        if slt(sub(dataEnd, headStart), 96) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 32\n\n            value1 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 64\n\n            value2 := abi_decode_t_uint256(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function validator_revert_t_bool(value) {\n        if iszero(eq(value, cleanup_t_bool(value))) { revert(0, 0) }\n    }\n\n    function abi_decode_t_bool(offset, end) -> value {\n        value := calldataload(offset)\n        validator_revert_t_bool(value)\n    }\n\n    function abi_decode_tuple_t_bool(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_bool(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function revert_error_1b9f4a0a5773e33b91aa01db23bf8c55fce1411167c872835e7fa00a4f17d46d() {\n        revert(0, 0)\n    }\n\n    function revert_error_987264b3b1d58a9c7f8255e93e81c77d86d6299019c33110a076957a3e06e2ae() {\n        revert(0, 0)\n    }\n\n    function panic_error_0x41() {\n        mstore(0, 35408467139433450592217433187231851964531694900788300625387963629091585785856)\n        mstore(4, 0x41)\n        revert(0, 0x24)\n    }\n\n    function finalize_allocation(memPtr, size) {\n        let newFreePtr := add(memPtr, round_up_to_mul_of_32(size))\n        // protect against overflow\n        if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr)) { panic_error_0x41() }\n        mstore(64, newFreePtr)\n    }\n\n    function allocate_memory(size) -> memPtr {\n        memPtr := allocate_unbounded()\n        finalize_allocation(memPtr, size)\n    }\n\n    function array_allocation_size_t_string_memory_ptr(length) -> size {\n        // Make sure we can allocate memory without overflow\n        if gt(length, 0xffffffffffffffff) { panic_error_0x41() }\n\n        size := round_up_to_mul_of_32(length)\n\n        // add length slot\n        size := add(size, 0x20)\n\n    }\n\n    function copy_calldata_to_memory(src, dst, length) {\n        calldatacopy(dst, src, length)\n        // clear end\n        mstore(add(dst, length), 0)\n    }\n\n    function abi_decode_available_length_t_string_memory_ptr(src, length, end) -> array {\n        array := allocate_memory(array_allocation_size_t_string_memory_ptr(length))\n        mstore(array, length)\n        let dst := add(array, 0x20)\n        if gt(add(src, length), end) { revert_error_987264b3b1d58a9c7f8255e93e81c77d86d6299019c33110a076957a3e06e2ae() }\n        copy_calldata_to_memory(src, dst, length)\n    }\n\n    // string\n    function abi_decode_t_string_memory_ptr(offset, end) -> array {\n        if iszero(slt(add(offset, 0x1f), end)) { revert_error_1b9f4a0a5773e33b91aa01db23bf8c55fce1411167c872835e7fa00a4f17d46d() }\n        let length := calldataload(offset)\n        array := abi_decode_available_length_t_string_memory_ptr(add(offset, 0x20), length, end)\n    }\n\n    function abi_decode_tuple_t_string_memory_ptr(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := calldataload(add(headStart, 0))\n            if gt(offset, 0xffffffffffffffff) { revert_error_c1322bf8034eace5e0b5c7295db60986aa89aae5e0ea0873e4689e076861a5db() }\n\n            value0 := abi_decode_t_string_memory_ptr(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function abi_decode_tuple_t_address(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function array_length_t_array$_t_uint256_$dyn_memory_ptr(value) -> length {\n\n        length := mload(value)\n\n    }\n\n    function array_storeLengthForEncoding_t_array$_t_uint256_$dyn_memory_ptr_fromStack(pos, length) -> updated_pos {\n        mstore(pos, length)\n        updated_pos := add(pos, 0x20)\n    }\n\n    function array_dataslot_t_array$_t_uint256_$dyn_memory_ptr(ptr) -> data {\n        data := ptr\n\n        data := add(ptr, 0x20)\n\n    }\n\n    function abi_encode_t_uint256_to_t_uint256(value, pos) {\n        mstore(pos, cleanup_t_uint256(value))\n    }\n\n    function abi_encodeUpdatedPos_t_uint256_to_t_uint256(value0, pos) -> updatedPos {\n        abi_encode_t_uint256_to_t_uint256(value0, pos)\n        updatedPos := add(pos, 0x20)\n    }\n\n    function array_nextElement_t_array$_t_uint256_$dyn_memory_ptr(ptr) -> next {\n        next := add(ptr, 0x20)\n    }\n\n    // uint256[] -> uint256[]\n    function abi_encode_t_array$_t_uint256_$dyn_memory_ptr_to_t_array$_t_uint256_$dyn_memory_ptr_fromStack(value, pos)  -> end  {\n        let length := array_length_t_array$_t_uint256_$dyn_memory_ptr(value)\n        pos := array_storeLengthForEncoding_t_array$_t_uint256_$dyn_memory_ptr_fromStack(pos, length)\n        let baseRef := array_dataslot_t_array$_t_uint256_$dyn_memory_ptr(value)\n        let srcPtr := baseRef\n        for { let i := 0 } lt(i, length) { i := add(i, 1) }\n        {\n            let elementValue0 := mload(srcPtr)\n            pos := abi_encodeUpdatedPos_t_uint256_to_t_uint256(elementValue0, pos)\n            srcPtr := array_nextElement_t_array$_t_uint256_$dyn_memory_ptr(srcPtr)\n        }\n        end := pos\n    }\n\n    function abi_encode_tuple_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart , value0) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_array$_t_uint256_$dyn_memory_ptr_to_t_array$_t_uint256_$dyn_memory_ptr_fromStack(value0,  tail)\n\n    }\n\n    function abi_decode_tuple_t_addresst_bool(headStart, dataEnd) -> value0, value1 {\n        if slt(sub(dataEnd, headStart), 64) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 32\n\n            value1 := abi_decode_t_bool(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function array_allocation_size_t_bytes_memory_ptr(length) -> size {\n        // Make sure we can allocate memory without overflow\n        if gt(length, 0xffffffffffffffff) { panic_error_0x41() }\n\n        size := round_up_to_mul_of_32(length)\n\n        // add length slot\n        size := add(size, 0x20)\n\n    }\n\n    function abi_decode_available_length_t_bytes_memory_ptr(src, length, end) -> array {\n        array := allocate_memory(array_allocation_size_t_bytes_memory_ptr(length))\n        mstore(array, length)\n        let dst := add(array, 0x20)\n        if gt(add(src, length), end) { revert_error_987264b3b1d58a9c7f8255e93e81c77d86d6299019c33110a076957a3e06e2ae() }\n        copy_calldata_to_memory(src, dst, length)\n    }\n\n    // bytes\n    function abi_decode_t_bytes_memory_ptr(offset, end) -> array {\n        if iszero(slt(add(offset, 0x1f), end)) { revert_error_1b9f4a0a5773e33b91aa01db23bf8c55fce1411167c872835e7fa00a4f17d46d() }\n        let length := calldataload(offset)\n        array := abi_decode_available_length_t_bytes_memory_ptr(add(offset, 0x20), length, end)\n    }\n\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_memory_ptr(headStart, dataEnd) -> value0, value1, value2, value3 {\n        if slt(sub(dataEnd, headStart), 128) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 32\n\n            value1 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 64\n\n            value2 := abi_decode_t_uint256(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := calldataload(add(headStart, 96))\n            if gt(offset, 0xffffffffffffffff) { revert_error_c1322bf8034eace5e0b5c7295db60986aa89aae5e0ea0873e4689e076861a5db() }\n\n            value3 := abi_decode_t_bytes_memory_ptr(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function array_allocation_size_t_array$_t_address_$dyn_memory_ptr(length) -> size {\n        // Make sure we can allocate memory without overflow\n        if gt(length, 0xffffffffffffffff) { panic_error_0x41() }\n\n        size := mul(length, 0x20)\n\n        // add length slot\n        size := add(size, 0x20)\n\n    }\n\n    function revert_error_81385d8c0b31fffe14be1da910c8bd3a80be4cfa248e04f42ec0faea3132a8ef() {\n        revert(0, 0)\n    }\n\n    // address[]\n    function abi_decode_available_length_t_array$_t_address_$dyn_memory_ptr(offset, length, end) -> array {\n        array := allocate_memory(array_allocation_size_t_array$_t_address_$dyn_memory_ptr(length))\n        let dst := array\n\n        mstore(array, length)\n        dst := add(array, 0x20)\n\n        let srcEnd := add(offset, mul(length, 0x20))\n        if gt(srcEnd, end) {\n            revert_error_81385d8c0b31fffe14be1da910c8bd3a80be4cfa248e04f42ec0faea3132a8ef()\n        }\n        for { let src := offset } lt(src, srcEnd) { src := add(src, 0x20) }\n        {\n\n            let elementPos := src\n\n            mstore(dst, abi_decode_t_address(elementPos, end))\n            dst := add(dst, 0x20)\n        }\n    }\n\n    // address[]\n    function abi_decode_t_array$_t_address_$dyn_memory_ptr(offset, end) -> array {\n        if iszero(slt(add(offset, 0x1f), end)) { revert_error_1b9f4a0a5773e33b91aa01db23bf8c55fce1411167c872835e7fa00a4f17d46d() }\n        let length := calldataload(offset)\n        array := abi_decode_available_length_t_array$_t_address_$dyn_memory_ptr(add(offset, 0x20), length, end)\n    }\n\n    function abi_decode_tuple_t_array$_t_address_$dyn_memory_ptr(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := calldataload(add(headStart, 0))\n            if gt(offset, 0xffffffffffffffff) { revert_error_c1322bf8034eace5e0b5c7295db60986aa89aae5e0ea0873e4689e076861a5db() }\n\n            value0 := abi_decode_t_array$_t_address_$dyn_memory_ptr(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function abi_decode_tuple_t_addresst_address(headStart, dataEnd) -> value0, value1 {\n        if slt(sub(dataEnd, headStart), 64) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := 32\n\n            value1 := abi_decode_t_address(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function array_allocation_size_t_array$_t_uint256_$dyn_memory_ptr(length) -> size {\n        // Make sure we can allocate memory without overflow\n        if gt(length, 0xffffffffffffffff) { panic_error_0x41() }\n\n        size := mul(length, 0x20)\n\n        // add length slot\n        size := add(size, 0x20)\n\n    }\n\n    // uint256[]\n    function abi_decode_available_length_t_array$_t_uint256_$dyn_memory_ptr(offset, length, end) -> array {\n        array := allocate_memory(array_allocation_size_t_array$_t_uint256_$dyn_memory_ptr(length))\n        let dst := array\n\n        mstore(array, length)\n        dst := add(array, 0x20)\n\n        let srcEnd := add(offset, mul(length, 0x20))\n        if gt(srcEnd, end) {\n            revert_error_81385d8c0b31fffe14be1da910c8bd3a80be4cfa248e04f42ec0faea3132a8ef()\n        }\n        for { let src := offset } lt(src, srcEnd) { src := add(src, 0x20) }\n        {\n\n            let elementPos := src\n\n            mstore(dst, abi_decode_t_uint256(elementPos, end))\n            dst := add(dst, 0x20)\n        }\n    }\n\n    // uint256[]\n    function abi_decode_t_array$_t_uint256_$dyn_memory_ptr(offset, end) -> array {\n        if iszero(slt(add(offset, 0x1f), end)) { revert_error_1b9f4a0a5773e33b91aa01db23bf8c55fce1411167c872835e7fa00a4f17d46d() }\n        let length := calldataload(offset)\n        array := abi_decode_available_length_t_array$_t_uint256_$dyn_memory_ptr(add(offset, 0x20), length, end)\n    }\n\n    function abi_decode_tuple_t_array$_t_address_$dyn_memory_ptrt_array$_t_uint256_$dyn_memory_ptr(headStart, dataEnd) -> value0, value1 {\n        if slt(sub(dataEnd, headStart), 64) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := calldataload(add(headStart, 0))\n            if gt(offset, 0xffffffffffffffff) { revert_error_c1322bf8034eace5e0b5c7295db60986aa89aae5e0ea0873e4689e076861a5db() }\n\n            value0 := abi_decode_t_array$_t_address_$dyn_memory_ptr(add(headStart, offset), dataEnd)\n        }\n\n        {\n\n            let offset := calldataload(add(headStart, 32))\n            if gt(offset, 0xffffffffffffffff) { revert_error_c1322bf8034eace5e0b5c7295db60986aa89aae5e0ea0873e4689e076861a5db() }\n\n            value1 := abi_decode_t_array$_t_uint256_$dyn_memory_ptr(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function panic_error_0x22() {\n        mstore(0, 35408467139433450592217433187231851964531694900788300625387963629091585785856)\n        mstore(4, 0x22)\n        revert(0, 0x24)\n    }\n\n    function extract_byte_array_length(data) -> length {\n        length := div(data, 2)\n        let outOfPlaceEncoding := and(data, 1)\n        if iszero(outOfPlaceEncoding) {\n            length := and(length, 0x7f)\n        }\n\n        if eq(outOfPlaceEncoding, lt(length, 32)) {\n            panic_error_0x22()\n        }\n    }\n\n    function store_literal_in_memory_9291e0f44949204f2e9b40e6be090924979d6047b2365868f4e9f027722eb89d(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: approved query for nonex\")\n\n        mstore(add(memPtr, 32), \"istent token\")\n\n    }\n\n    function abi_encode_t_stringliteral_9291e0f44949204f2e9b40e6be090924979d6047b2365868f4e9f027722eb89d_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 44)\n        store_literal_in_memory_9291e0f44949204f2e9b40e6be090924979d6047b2365868f4e9f027722eb89d(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_9291e0f44949204f2e9b40e6be090924979d6047b2365868f4e9f027722eb89d__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_9291e0f44949204f2e9b40e6be090924979d6047b2365868f4e9f027722eb89d_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_b51b4875eede07862961e8f9365c6749f5fe55c6ee5d7a9e42b6912ad0b15942(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: approval to current owne\")\n\n        mstore(add(memPtr, 32), \"r\")\n\n    }\n\n    function abi_encode_t_stringliteral_b51b4875eede07862961e8f9365c6749f5fe55c6ee5d7a9e42b6912ad0b15942_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 33)\n        store_literal_in_memory_b51b4875eede07862961e8f9365c6749f5fe55c6ee5d7a9e42b6912ad0b15942(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_b51b4875eede07862961e8f9365c6749f5fe55c6ee5d7a9e42b6912ad0b15942__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_b51b4875eede07862961e8f9365c6749f5fe55c6ee5d7a9e42b6912ad0b15942_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_6d83cef3e0cb19b8320a9c5feb26b56bbb08f152a8e61b12eca3302d8d68b23d(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: approve caller is not ow\")\n\n        mstore(add(memPtr, 32), \"ner nor approved for all\")\n\n    }\n\n    function abi_encode_t_stringliteral_6d83cef3e0cb19b8320a9c5feb26b56bbb08f152a8e61b12eca3302d8d68b23d_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 56)\n        store_literal_in_memory_6d83cef3e0cb19b8320a9c5feb26b56bbb08f152a8e61b12eca3302d8d68b23d(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_6d83cef3e0cb19b8320a9c5feb26b56bbb08f152a8e61b12eca3302d8d68b23d__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_6d83cef3e0cb19b8320a9c5feb26b56bbb08f152a8e61b12eca3302d8d68b23d_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_c8682f3ad98807db59a6ec6bb812b72fed0a66e3150fa8239699ee83885247f2(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: transfer caller is not o\")\n\n        mstore(add(memPtr, 32), \"wner nor approved\")\n\n    }\n\n    function abi_encode_t_stringliteral_c8682f3ad98807db59a6ec6bb812b72fed0a66e3150fa8239699ee83885247f2_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 49)\n        store_literal_in_memory_c8682f3ad98807db59a6ec6bb812b72fed0a66e3150fa8239699ee83885247f2(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_c8682f3ad98807db59a6ec6bb812b72fed0a66e3150fa8239699ee83885247f2__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_c8682f3ad98807db59a6ec6bb812b72fed0a66e3150fa8239699ee83885247f2_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_1d7f5dcf03a65f41ee49b0ab593e3851cfbe3fd7da53b6cf4eddd83c7df5734c(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721Enumerable: owner index ou\")\n\n        mstore(add(memPtr, 32), \"t of bounds\")\n\n    }\n\n    function abi_encode_t_stringliteral_1d7f5dcf03a65f41ee49b0ab593e3851cfbe3fd7da53b6cf4eddd83c7df5734c_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 43)\n        store_literal_in_memory_1d7f5dcf03a65f41ee49b0ab593e3851cfbe3fd7da53b6cf4eddd83c7df5734c(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_1d7f5dcf03a65f41ee49b0ab593e3851cfbe3fd7da53b6cf4eddd83c7df5734c__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_1d7f5dcf03a65f41ee49b0ab593e3851cfbe3fd7da53b6cf4eddd83c7df5734c_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_9924ebdf1add33d25d4ef888e16131f0a5687b0580a36c21b5c301a6c462effe(memPtr) {\n\n        mstore(add(memPtr, 0), \"Ownable: caller is not the owner\")\n\n    }\n\n    function abi_encode_t_stringliteral_9924ebdf1add33d25d4ef888e16131f0a5687b0580a36c21b5c301a6c462effe_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 32)\n        store_literal_in_memory_9924ebdf1add33d25d4ef888e16131f0a5687b0580a36c21b5c301a6c462effe(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_9924ebdf1add33d25d4ef888e16131f0a5687b0580a36c21b5c301a6c462effe__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_9924ebdf1add33d25d4ef888e16131f0a5687b0580a36c21b5c301a6c462effe_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_7de7f98f4c3f216ce41ef19c7c879114861708c913ad37974a626dbce5a78307(memPtr) {\n\n        mstore(add(memPtr, 0), \"Whitelist isn't active\")\n\n    }\n\n    function abi_encode_t_stringliteral_7de7f98f4c3f216ce41ef19c7c879114861708c913ad37974a626dbce5a78307_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 22)\n        store_literal_in_memory_7de7f98f4c3f216ce41ef19c7c879114861708c913ad37974a626dbce5a78307(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_7de7f98f4c3f216ce41ef19c7c879114861708c913ad37974a626dbce5a78307__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_7de7f98f4c3f216ce41ef19c7c879114861708c913ad37974a626dbce5a78307_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_62bf9d579f23a21f9c6d7d9ece2e1eb65db49ec019e9abd148d9b1288427fd19(memPtr) {\n\n        mstore(add(memPtr, 0), \"No tokens reserved for your addr\")\n\n        mstore(add(memPtr, 32), \"ess\")\n\n    }\n\n    function abi_encode_t_stringliteral_62bf9d579f23a21f9c6d7d9ece2e1eb65db49ec019e9abd148d9b1288427fd19_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 35)\n        store_literal_in_memory_62bf9d579f23a21f9c6d7d9ece2e1eb65db49ec019e9abd148d9b1288427fd19(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_62bf9d579f23a21f9c6d7d9ece2e1eb65db49ec019e9abd148d9b1288427fd19__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_62bf9d579f23a21f9c6d7d9ece2e1eb65db49ec019e9abd148d9b1288427fd19_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_12e34b139c0b692d8741c72d7cb97075cce53f5f502693ade71dc90adf11809a(memPtr) {\n\n        mstore(add(memPtr, 0), \"Can't mint more than reserved\")\n\n    }\n\n    function abi_encode_t_stringliteral_12e34b139c0b692d8741c72d7cb97075cce53f5f502693ade71dc90adf11809a_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 29)\n        store_literal_in_memory_12e34b139c0b692d8741c72d7cb97075cce53f5f502693ade71dc90adf11809a(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_12e34b139c0b692d8741c72d7cb97075cce53f5f502693ade71dc90adf11809a__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_12e34b139c0b692d8741c72d7cb97075cce53f5f502693ade71dc90adf11809a_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function panic_error_0x11() {\n        mstore(0, 35408467139433450592217433187231851964531694900788300625387963629091585785856)\n        mstore(4, 0x11)\n        revert(0, 0x24)\n    }\n\n    function checked_add_t_uint256(x, y) -> sum {\n        x := cleanup_t_uint256(x)\n        y := cleanup_t_uint256(y)\n\n        // overflow, if x > (maxValue - y)\n        if gt(x, sub(0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff, y)) { panic_error_0x11() }\n\n        sum := add(x, y)\n    }\n\n    function store_literal_in_memory_38e5e19be1303721e5c1d007e3e1f36e9afee34e4710fa7425d0119ccc73429b(memPtr) {\n\n        mstore(add(memPtr, 0), \"Can't mint more than max supply\")\n\n    }\n\n    function abi_encode_t_stringliteral_38e5e19be1303721e5c1d007e3e1f36e9afee34e4710fa7425d0119ccc73429b_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 31)\n        store_literal_in_memory_38e5e19be1303721e5c1d007e3e1f36e9afee34e4710fa7425d0119ccc73429b(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_38e5e19be1303721e5c1d007e3e1f36e9afee34e4710fa7425d0119ccc73429b__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_38e5e19be1303721e5c1d007e3e1f36e9afee34e4710fa7425d0119ccc73429b_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function checked_mul_t_uint256(x, y) -> product {\n        x := cleanup_t_uint256(x)\n        y := cleanup_t_uint256(y)\n\n        // overflow, if x != 0 and y > (maxValue / x)\n        if and(iszero(iszero(x)), gt(y, div(0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff, x))) { panic_error_0x11() }\n\n        product := mul(x, y)\n    }\n\n    function store_literal_in_memory_f21a5c548b56e7f49a24ea4b0049ba081e76cb5ffb07d51ccf15252d7a213f7b(memPtr) {\n\n        mstore(add(memPtr, 0), \"Wrong amount of ETH sent\")\n\n    }\n\n    function abi_encode_t_stringliteral_f21a5c548b56e7f49a24ea4b0049ba081e76cb5ffb07d51ccf15252d7a213f7b_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 24)\n        store_literal_in_memory_f21a5c548b56e7f49a24ea4b0049ba081e76cb5ffb07d51ccf15252d7a213f7b(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_f21a5c548b56e7f49a24ea4b0049ba081e76cb5ffb07d51ccf15252d7a213f7b__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_f21a5c548b56e7f49a24ea4b0049ba081e76cb5ffb07d51ccf15252d7a213f7b_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function checked_sub_t_uint256(x, y) -> diff {\n        x := cleanup_t_uint256(x)\n        y := cleanup_t_uint256(y)\n\n        if lt(x, y) { panic_error_0x11() }\n\n        diff := sub(x, y)\n    }\n\n    function increment_t_uint256(value) -> ret {\n        value := cleanup_t_uint256(value)\n        if eq(value, 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) { panic_error_0x11() }\n        ret := add(value, 1)\n    }\n\n    function store_literal_in_memory_d269a4e9f5820dcdb69ea21f528512eb9b927c8d846d48aa51c9219f461d4dcc(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721Enumerable: global index o\")\n\n        mstore(add(memPtr, 32), \"ut of bounds\")\n\n    }\n\n    function abi_encode_t_stringliteral_d269a4e9f5820dcdb69ea21f528512eb9b927c8d846d48aa51c9219f461d4dcc_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 44)\n        store_literal_in_memory_d269a4e9f5820dcdb69ea21f528512eb9b927c8d846d48aa51c9219f461d4dcc(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_d269a4e9f5820dcdb69ea21f528512eb9b927c8d846d48aa51c9219f461d4dcc__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_d269a4e9f5820dcdb69ea21f528512eb9b927c8d846d48aa51c9219f461d4dcc_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function panic_error_0x32() {\n        mstore(0, 35408467139433450592217433187231851964531694900788300625387963629091585785856)\n        mstore(4, 0x32)\n        revert(0, 0x24)\n    }\n\n    function store_literal_in_memory_7481f3df2a424c0755a1ad2356614e9a5a358d461ea2eae1f89cb21cbad00397(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: owner query for nonexist\")\n\n        mstore(add(memPtr, 32), \"ent token\")\n\n    }\n\n    function abi_encode_t_stringliteral_7481f3df2a424c0755a1ad2356614e9a5a358d461ea2eae1f89cb21cbad00397_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 41)\n        store_literal_in_memory_7481f3df2a424c0755a1ad2356614e9a5a358d461ea2eae1f89cb21cbad00397(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_7481f3df2a424c0755a1ad2356614e9a5a358d461ea2eae1f89cb21cbad00397__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_7481f3df2a424c0755a1ad2356614e9a5a358d461ea2eae1f89cb21cbad00397_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_7395d4d3901c50cdfcab223d072f9aa36241df5d883e62cbf147ee1b05a9e6ba(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: balance query for the ze\")\n\n        mstore(add(memPtr, 32), \"ro address\")\n\n    }\n\n    function abi_encode_t_stringliteral_7395d4d3901c50cdfcab223d072f9aa36241df5d883e62cbf147ee1b05a9e6ba_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 42)\n        store_literal_in_memory_7395d4d3901c50cdfcab223d072f9aa36241df5d883e62cbf147ee1b05a9e6ba(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_7395d4d3901c50cdfcab223d072f9aa36241df5d883e62cbf147ee1b05a9e6ba__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_7395d4d3901c50cdfcab223d072f9aa36241df5d883e62cbf147ee1b05a9e6ba_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_91f64f616e668091afb5e2dea8b2a605b61178c9369281b538d36008f0f0eef2(memPtr) {\n\n        mstore(add(memPtr, 0), \"Can't reserve more than set amou\")\n\n        mstore(add(memPtr, 32), \"nt\")\n\n    }\n\n    function abi_encode_t_stringliteral_91f64f616e668091afb5e2dea8b2a605b61178c9369281b538d36008f0f0eef2_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 34)\n        store_literal_in_memory_91f64f616e668091afb5e2dea8b2a605b61178c9369281b538d36008f0f0eef2(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_91f64f616e668091afb5e2dea8b2a605b61178c9369281b538d36008f0f0eef2__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_91f64f616e668091afb5e2dea8b2a605b61178c9369281b538d36008f0f0eef2_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_45fe4329685be5ecd250fd0e6a25aea0ea4d0e30fb6a73c118b95749e6d70d05(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: approve to caller\")\n\n    }\n\n    function abi_encode_t_stringliteral_45fe4329685be5ecd250fd0e6a25aea0ea4d0e30fb6a73c118b95749e6d70d05_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 25)\n        store_literal_in_memory_45fe4329685be5ecd250fd0e6a25aea0ea4d0e30fb6a73c118b95749e6d70d05(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_45fe4329685be5ecd250fd0e6a25aea0ea4d0e30fb6a73c118b95749e6d70d05__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_45fe4329685be5ecd250fd0e6a25aea0ea4d0e30fb6a73c118b95749e6d70d05_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_b3742fc0c4b8e9b5016127b2766e6df8d8e784d0a0cc3776ee30ada5153fccb7(memPtr) {\n\n        mstore(add(memPtr, 0), \"Sale isn't active\")\n\n    }\n\n    function abi_encode_t_stringliteral_b3742fc0c4b8e9b5016127b2766e6df8d8e784d0a0cc3776ee30ada5153fccb7_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 17)\n        store_literal_in_memory_b3742fc0c4b8e9b5016127b2766e6df8d8e784d0a0cc3776ee30ada5153fccb7(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_b3742fc0c4b8e9b5016127b2766e6df8d8e784d0a0cc3776ee30ada5153fccb7__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_b3742fc0c4b8e9b5016127b2766e6df8d8e784d0a0cc3776ee30ada5153fccb7_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_1a2e2ac8ff31333e758fa073a2b4749c3ff46d49ea7cfc2b1de033ac50cdfe1e(memPtr) {\n\n        mstore(add(memPtr, 0), \"Can only mint between 1 and 10 t\")\n\n        mstore(add(memPtr, 32), \"okens at once\")\n\n    }\n\n    function abi_encode_t_stringliteral_1a2e2ac8ff31333e758fa073a2b4749c3ff46d49ea7cfc2b1de033ac50cdfe1e_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 45)\n        store_literal_in_memory_1a2e2ac8ff31333e758fa073a2b4749c3ff46d49ea7cfc2b1de033ac50cdfe1e(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_1a2e2ac8ff31333e758fa073a2b4749c3ff46d49ea7cfc2b1de033ac50cdfe1e__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_1a2e2ac8ff31333e758fa073a2b4749c3ff46d49ea7cfc2b1de033ac50cdfe1e_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_a2d45c0fba603d40d82d590051761ca952d1ab9d78cca6d0d464d7b6e961a9cb(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721Metadata: URI query for no\")\n\n        mstore(add(memPtr, 32), \"nexistent token\")\n\n    }\n\n    function abi_encode_t_stringliteral_a2d45c0fba603d40d82d590051761ca952d1ab9d78cca6d0d464d7b6e961a9cb_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 47)\n        store_literal_in_memory_a2d45c0fba603d40d82d590051761ca952d1ab9d78cca6d0d464d7b6e961a9cb(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_a2d45c0fba603d40d82d590051761ca952d1ab9d78cca6d0d464d7b6e961a9cb__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_a2d45c0fba603d40d82d590051761ca952d1ab9d78cca6d0d464d7b6e961a9cb_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function array_storeLengthForEncoding_t_string_memory_ptr_nonPadded_inplace_fromStack(pos, length) -> updated_pos {\n        updated_pos := pos\n    }\n\n    function abi_encode_t_string_memory_ptr_to_t_string_memory_ptr_nonPadded_inplace_fromStack(value, pos) -> end {\n        let length := array_length_t_string_memory_ptr(value)\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_nonPadded_inplace_fromStack(pos, length)\n        copy_memory_to_memory(add(value, 0x20), pos, length)\n        end := add(pos, length)\n    }\n\n    function abi_encode_tuple_packed_t_string_memory_ptr_t_string_memory_ptr__to_t_string_memory_ptr_t_string_memory_ptr__nonPadded_inplace_fromStack_reversed(pos , value1, value0) -> end {\n\n        pos := abi_encode_t_string_memory_ptr_to_t_string_memory_ptr_nonPadded_inplace_fromStack(value0,  pos)\n\n        pos := abi_encode_t_string_memory_ptr_to_t_string_memory_ptr_nonPadded_inplace_fromStack(value1,  pos)\n\n        end := pos\n    }\n\n    function store_literal_in_memory_245f15ff17f551913a7a18385165551503906a406f905ac1c2437281a7cd0cfe(memPtr) {\n\n        mstore(add(memPtr, 0), \"Ownable: new owner is the zero a\")\n\n        mstore(add(memPtr, 32), \"ddress\")\n\n    }\n\n    function abi_encode_t_stringliteral_245f15ff17f551913a7a18385165551503906a406f905ac1c2437281a7cd0cfe_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 38)\n        store_literal_in_memory_245f15ff17f551913a7a18385165551503906a406f905ac1c2437281a7cd0cfe(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_245f15ff17f551913a7a18385165551503906a406f905ac1c2437281a7cd0cfe__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_245f15ff17f551913a7a18385165551503906a406f905ac1c2437281a7cd0cfe_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_1b07d4bc7f8a33a62587b6af61a5de0f8419b0a6905a37cf44abe9659cab0efe(memPtr) {\n\n        mstore(add(memPtr, 0), \"Can only mint between 1 and 20 t\")\n\n        mstore(add(memPtr, 32), \"okens at once\")\n\n    }\n\n    function abi_encode_t_stringliteral_1b07d4bc7f8a33a62587b6af61a5de0f8419b0a6905a37cf44abe9659cab0efe_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 45)\n        store_literal_in_memory_1b07d4bc7f8a33a62587b6af61a5de0f8419b0a6905a37cf44abe9659cab0efe(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_1b07d4bc7f8a33a62587b6af61a5de0f8419b0a6905a37cf44abe9659cab0efe__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_1b07d4bc7f8a33a62587b6af61a5de0f8419b0a6905a37cf44abe9659cab0efe_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function panic_error_0x12() {\n        mstore(0, 35408467139433450592217433187231851964531694900788300625387963629091585785856)\n        mstore(4, 0x12)\n        revert(0, 0x24)\n    }\n\n    function checked_div_t_uint256(x, y) -> r {\n        x := cleanup_t_uint256(x)\n        y := cleanup_t_uint256(y)\n        if iszero(y) { panic_error_0x12() }\n\n        r := div(x, y)\n    }\n\n    function store_literal_in_memory_5797d1ccb08b83980dd0c07ea40d8f6a64d35fff736a19bdd17522954cb0899c(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: operator query for nonex\")\n\n        mstore(add(memPtr, 32), \"istent token\")\n\n    }\n\n    function abi_encode_t_stringliteral_5797d1ccb08b83980dd0c07ea40d8f6a64d35fff736a19bdd17522954cb0899c_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 44)\n        store_literal_in_memory_5797d1ccb08b83980dd0c07ea40d8f6a64d35fff736a19bdd17522954cb0899c(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_5797d1ccb08b83980dd0c07ea40d8f6a64d35fff736a19bdd17522954cb0899c__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_5797d1ccb08b83980dd0c07ea40d8f6a64d35fff736a19bdd17522954cb0899c_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_a01073130a885d6c1c1af6ac75fc3b1c4f9403c235362962bbf528e2bd87d950(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: transfer of token that i\")\n\n        mstore(add(memPtr, 32), \"s not own\")\n\n    }\n\n    function abi_encode_t_stringliteral_a01073130a885d6c1c1af6ac75fc3b1c4f9403c235362962bbf528e2bd87d950_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 41)\n        store_literal_in_memory_a01073130a885d6c1c1af6ac75fc3b1c4f9403c235362962bbf528e2bd87d950(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_a01073130a885d6c1c1af6ac75fc3b1c4f9403c235362962bbf528e2bd87d950__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_a01073130a885d6c1c1af6ac75fc3b1c4f9403c235362962bbf528e2bd87d950_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_455fea98ea03c32d7dd1a6f1426917d80529bf47b3ccbde74e7206e889e709f4(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: transfer to the zero add\")\n\n        mstore(add(memPtr, 32), \"ress\")\n\n    }\n\n    function abi_encode_t_stringliteral_455fea98ea03c32d7dd1a6f1426917d80529bf47b3ccbde74e7206e889e709f4_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 36)\n        store_literal_in_memory_455fea98ea03c32d7dd1a6f1426917d80529bf47b3ccbde74e7206e889e709f4(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_455fea98ea03c32d7dd1a6f1426917d80529bf47b3ccbde74e7206e889e709f4__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_455fea98ea03c32d7dd1a6f1426917d80529bf47b3ccbde74e7206e889e709f4_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_1e766a06da43a53d0f4c380e06e5a342e14d5af1bf8501996c844905530ca84e(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: transfer to non ERC721Re\")\n\n        mstore(add(memPtr, 32), \"ceiver implementer\")\n\n    }\n\n    function abi_encode_t_stringliteral_1e766a06da43a53d0f4c380e06e5a342e14d5af1bf8501996c844905530ca84e_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 50)\n        store_literal_in_memory_1e766a06da43a53d0f4c380e06e5a342e14d5af1bf8501996c844905530ca84e(pos)\n        end := add(pos, 64)\n    }\n\n    function abi_encode_tuple_t_stringliteral_1e766a06da43a53d0f4c380e06e5a342e14d5af1bf8501996c844905530ca84e__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_1e766a06da43a53d0f4c380e06e5a342e14d5af1bf8501996c844905530ca84e_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function mod_t_uint256(x, y) -> r {\n        x := cleanup_t_uint256(x)\n        y := cleanup_t_uint256(y)\n        if iszero(y) { panic_error_0x12() }\n        r := mod(x, y)\n    }\n\n    function array_length_t_bytes_memory_ptr(value) -> length {\n\n        length := mload(value)\n\n    }\n\n    function array_storeLengthForEncoding_t_bytes_memory_ptr_fromStack(pos, length) -> updated_pos {\n        mstore(pos, length)\n        updated_pos := add(pos, 0x20)\n    }\n\n    function abi_encode_t_bytes_memory_ptr_to_t_bytes_memory_ptr_fromStack(value, pos) -> end {\n        let length := array_length_t_bytes_memory_ptr(value)\n        pos := array_storeLengthForEncoding_t_bytes_memory_ptr_fromStack(pos, length)\n        copy_memory_to_memory(add(value, 0x20), pos, length)\n        end := add(pos, round_up_to_mul_of_32(length))\n    }\n\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart , value3, value2, value1, value0) -> tail {\n        tail := add(headStart, 128)\n\n        abi_encode_t_address_to_t_address_fromStack(value0,  add(headStart, 0))\n\n        abi_encode_t_address_to_t_address_fromStack(value1,  add(headStart, 32))\n\n        abi_encode_t_uint256_to_t_uint256_fromStack(value2,  add(headStart, 64))\n\n        mstore(add(headStart, 96), sub(tail, headStart))\n        tail := abi_encode_t_bytes_memory_ptr_to_t_bytes_memory_ptr_fromStack(value3,  tail)\n\n    }\n\n    function abi_decode_t_bytes4_fromMemory(offset, end) -> value {\n        value := mload(offset)\n        validator_revert_t_bytes4(value)\n    }\n\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0 {\n        if slt(sub(dataEnd, headStart), 32) { revert_error_dbdddcbe895c83990c08b3492a0e83918d802a52331272ac6fdb6a7c4aea3b1b() }\n\n        {\n\n            let offset := 0\n\n            value0 := abi_decode_t_bytes4_fromMemory(add(headStart, offset), dataEnd)\n        }\n\n    }\n\n    function panic_error_0x31() {\n        mstore(0, 35408467139433450592217433187231851964531694900788300625387963629091585785856)\n        mstore(4, 0x31)\n        revert(0, 0x24)\n    }\n\n    function store_literal_in_memory_8a66f4bb6512ffbfcc3db9b42318eb65f26ac15163eaa9a1e5cfa7bee9d1c7c6(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: mint to the zero address\")\n\n    }\n\n    function abi_encode_t_stringliteral_8a66f4bb6512ffbfcc3db9b42318eb65f26ac15163eaa9a1e5cfa7bee9d1c7c6_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 32)\n        store_literal_in_memory_8a66f4bb6512ffbfcc3db9b42318eb65f26ac15163eaa9a1e5cfa7bee9d1c7c6(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_8a66f4bb6512ffbfcc3db9b42318eb65f26ac15163eaa9a1e5cfa7bee9d1c7c6__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_8a66f4bb6512ffbfcc3db9b42318eb65f26ac15163eaa9a1e5cfa7bee9d1c7c6_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n    function store_literal_in_memory_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57(memPtr) {\n\n        mstore(add(memPtr, 0), \"ERC721: token already minted\")\n\n    }\n\n    function abi_encode_t_stringliteral_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57_to_t_string_memory_ptr_fromStack(pos) -> end {\n        pos := array_storeLengthForEncoding_t_string_memory_ptr_fromStack(pos, 28)\n        store_literal_in_memory_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57(pos)\n        end := add(pos, 32)\n    }\n\n    function abi_encode_tuple_t_stringliteral_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57__to_t_string_memory_ptr__fromStack_reversed(headStart ) -> tail {\n        tail := add(headStart, 32)\n\n        mstore(add(headStart, 0), sub(tail, headStart))\n        tail := abi_encode_t_stringliteral_2a63ce106ef95058ed21fd07c42a10f11dc5c32ac13a4e847923f7759f635d57_to_t_string_memory_ptr_fromStack( tail)\n\n    }\n\n}\n",
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-      "language": "Yul",
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-  "source": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.9;\n\nimport '@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol';\nimport '@openzeppelin/contracts/access/Ownable.sol';\n\ncontract FunkyCrocs is ERC721Enumerable, Ownable {  \n    using Address for address;\n    \n    // Starting and stopping sale, presale and whitelist\n    bool public saleActive = false;\n    bool public whitelistActive = false;\n    bool public presaleActive = false;\n\n    // Reserved for the team, customs, giveaways, collabs and so on.\n    uint256 public reserved = 150;\n\n    // Price of each token\n    uint256 public initial_price = 0.04 ether;\n    uint256 public price;\n\n    // Maximum limit of tokens that can ever exist\n    uint256 public constant MAX_SUPPLY = 10000;\n    uint256 public constant MAX_PRESALE_SUPPLY = 500;\n    uint256 public constant MAX_MINT_PER_TX = 20;\n\n    // The base link that leads to the image / video of the token\n    string public baseTokenURI = \"https://api.funkycrocs.io/\";\n\n    // Team addresses for withdrawals\n    address public a1;\n    address public a2;\n    address public a3;\n\n    // List of addresses that have a number of reserved tokens for whitelist\n    mapping (address => uint256) public whitelistReserved;\n\n    constructor () ERC721 (\"Funky Crocs\", \"FNK\") {\n        price = initial_price;\n    }\n\n    // Override so the openzeppelin tokenURI() method will use this method to create the full tokenURI instead\n    function _baseURI() internal view virtual override returns (string memory) {\n        return baseTokenURI;\n    }\n\n    // See which address owns which tokens\n    function tokensOfOwner(address addr) public view returns(uint256[] memory) {\n        uint256 tokenCount = balanceOf(addr);\n        uint256[] memory tokensId = new uint256[](tokenCount);\n        for(uint256 i; i < tokenCount; i++){\n            tokensId[i] = tokenOfOwnerByIndex(addr, i);\n        }\n        return tokensId;\n    }\n\n    // Exclusive whitelist minting\n    function mintWhitelist(uint256 _amount) public payable {\n        uint256 supply = totalSupply();\n        uint256 reservedAmt = whitelistReserved[msg.sender];\n        require( whitelistActive,                   \"Whitelist isn't active\" );\n        require( reservedAmt > 0,                   \"No tokens reserved for your address\" );\n        require( _amount <= reservedAmt,            \"Can't mint more than reserved\" );\n        require( supply + _amount <= MAX_SUPPLY,    \"Can't mint more than max supply\" );\n        require( msg.value == price * _amount,      \"Wrong amount of ETH sent\" );\n        whitelistReserved[msg.sender] = reservedAmt - _amount;\n        for(uint256 i; i < _amount; i++){\n            _safeMint( msg.sender, supply + i );\n        }\n    }\n\n    // Presale minting\n    function mintPresale(uint256 _amount) public payable {\n        uint256 supply = totalSupply();\n        require( presaleActive,                             \"Sale isn't active\" );\n        require( _amount > 0 && _amount <= MAX_MINT_PER_TX, \"Can only mint between 1 and 20 tokens at once\" );\n        require( supply + _amount <= MAX_PRESALE_SUPPLY,    \"Can't mint more than max supply\" );\n        require( msg.value == price * _amount,              \"Wrong amount of ETH sent\" );\n        for(uint256 i; i < _amount; i++){\n            _safeMint( msg.sender, supply + i );\n        }\n    }\n\n    // Standard mint function\n    function mintToken(uint256 _amount) public payable {\n        uint256 supply = totalSupply();\n        require( saleActive,                                \"Sale isn't active\" );\n        require( _amount > 0 && _amount <= MAX_MINT_PER_TX, \"Can only mint between 1 and 10 tokens at once\" );\n        require( supply + _amount <= MAX_SUPPLY,            \"Can't mint more than max supply\" );\n        require( msg.value == price * _amount,              \"Wrong amount of ETH sent\" );\n        for(uint256 i; i < _amount; i++){\n            _safeMint( msg.sender, supply + i );\n        }\n    }\n\n    // Admin minting function to reserve tokens for the team, collabs, customs and giveaways\n    function mintReserved(uint256 _amount) public onlyOwner {\n        // Limited to a publicly set amount\n        require( _amount <= reserved, \"Can't reserve more than set amount\" );\n        reserved -= _amount;\n        uint256 supply = totalSupply();\n        for(uint256 i; i < _amount; i++){\n            _safeMint( msg.sender, supply + i );\n        }\n    }\n    \n    // Edit reserved whitelist spots\n    function editWhitelistReserved(address[] memory _a, uint256[] memory _amount) public onlyOwner {\n        for(uint256 i; i < _a.length; i++){\n            whitelistReserved[_a[i]] = _amount[i];\n        }\n    }\n\n    // Start and stop whitelist\n    function setWhitelistActive(bool val) public onlyOwner {\n        whitelistActive = val;\n    }\n\n    // Start and stop presale\n    function setPresaleActive(bool val) public onlyOwner {\n        presaleActive = val;\n    }\n\n    // Start and stop sale\n    function setSaleActive(bool val) public onlyOwner {\n        saleActive = val;\n    }\n\n    // Set new baseURI\n    function setBaseURI(string memory baseURI) public onlyOwner {\n        baseTokenURI = baseURI;\n    }\n\n    // Set a different price in case ETH changes drastically\n    function setPrice(uint256 newPrice) public onlyOwner {\n        price = newPrice;\n    }\n\n    // Set team addresses\n    function setAddresses(address[] memory _a) public onlyOwner {\n        a1 = _a[0];\n        a2 = _a[1];\n        a3 = _a[2];\n    }\n\n    // Withdraw funds from contract for the team\n    function withdrawTeam(uint256 amount) public payable onlyOwner {\n        uint256 percent = amount / 100;\n        require(payable(a1).send(percent * 40));\n        require(payable(a2).send(percent * 30));\n        require(payable(a3).send(percent * 30));\n    }\n}",
-  "sourcePath": "/home/turupawn/Projects/FunkyCrocs/contracts/FunkyCrocs.sol",
-  "ast": {
-    "absolutePath": "project:/contracts/FunkyCrocs.sol",
-    "exportedSymbols": {
-      "Address": [
-        1746
-      ],
-      "Context": [
-        1768
-      ],
-      "ERC165": [
-        1995
-      ],
-      "ERC721": [
-        919
-      ],
-      "ERC721Enumerable": [
-        1391
-      ],
-      "FunkyCrocs": [
-        2555
-      ],
-      "IERC165": [
-        2007
-      ],
-      "IERC721": [
-        1035
-      ],
-      "IERC721Enumerable": [
-        1422
-      ],
-      "IERC721Metadata": [
-        1449
-      ],
-      "IERC721Receiver": [
-        1053
-      ],
-      "Ownable": [
-        103
-      ],
-      "Strings": [
-        1971
-      ]
-    },
-    "id": 2556,
-    "license": "MIT",
-    "nodeType": "SourceUnit",
-    "nodes": [
-      {
-        "id": 2009,
-        "literals": [
-          "solidity",
-          "0.8",
-          ".9"
-        ],
-        "nodeType": "PragmaDirective",
-        "src": "32:22:12"
-      },
-      {
-        "absolutePath": "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol",
-        "file": "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol",
-        "id": 2010,
-        "nameLocation": "-1:-1:-1",
-        "nodeType": "ImportDirective",
-        "scope": 2556,
-        "sourceUnit": 1392,
-        "src": "56:78:12",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "absolutePath": "@openzeppelin/contracts/access/Ownable.sol",
-        "file": "@openzeppelin/contracts/access/Ownable.sol",
-        "id": 2011,
-        "nameLocation": "-1:-1:-1",
-        "nodeType": "ImportDirective",
-        "scope": 2556,
-        "sourceUnit": 104,
-        "src": "135:52:12",
-        "symbolAliases": [],
-        "unitAlias": ""
-      },
-      {
-        "abstract": false,
-        "baseContracts": [
-          {
-            "baseName": {
-              "id": 2012,
-              "name": "ERC721Enumerable",
-              "nodeType": "IdentifierPath",
-              "referencedDeclaration": 1391,
-              "src": "212:16:12"
-            },
-            "id": 2013,
-            "nodeType": "InheritanceSpecifier",
-            "src": "212:16:12"
-          },
-          {
-            "baseName": {
-              "id": 2014,
-              "name": "Ownable",
-              "nodeType": "IdentifierPath",
-              "referencedDeclaration": 103,
-              "src": "230:7:12"
-            },
-            "id": 2015,
-            "nodeType": "InheritanceSpecifier",
-            "src": "230:7:12"
-          }
-        ],
-        "canonicalName": "FunkyCrocs",
-        "contractDependencies": [],
-        "contractKind": "contract",
-        "fullyImplemented": true,
-        "id": 2555,
-        "linearizedBaseContracts": [
-          2555,
-          103,
-          1391,
-          1422,
-          919,
-          1449,
-          1035,
-          1995,
-          2007,
-          1768
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-                                "typeIdentifier": "t_uint256",
-                                "typeString": "uint256"
-                              }
-                            },
-                            "nodeType": "BinaryOperation",
-                            "operator": "*",
-                            "rightExpression": {
-                              "hexValue": "3330",
-                              "id": 2548,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": true,
-                              "kind": "number",
-                              "lValueRequested": false,
-                              "nodeType": "Literal",
-                              "src": "5775:2:12",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_rational_30_by_1",
-                                "typeString": "int_const 30"
-                              },
-                              "value": "30"
-                            },
-                            "src": "5765:12:12",
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          }
-                        ],
-                        "expression": {
-                          "argumentTypes": [
-                            {
-                              "typeIdentifier": "t_uint256",
-                              "typeString": "uint256"
-                            }
-                          ],
-                          "expression": {
-                            "arguments": [
-                              {
-                                "id": 2544,
-                                "name": "a3",
-                                "nodeType": "Identifier",
-                                "overloadedDeclarations": [],
-                                "referencedDeclaration": 2053,
-                                "src": "5756:2:12",
-                                "typeDescriptions": {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
-                                }
-                              }
-                            ],
-                            "expression": {
-                              "argumentTypes": [
-                                {
-                                  "typeIdentifier": "t_address",
-                                  "typeString": "address"
-                                }
-                              ],
-                              "id": 2543,
-                              "isConstant": false,
-                              "isLValue": false,
-                              "isPure": true,
-                              "lValueRequested": false,
-                              "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5748:8:12",
-                              "typeDescriptions": {
-                                "typeIdentifier": "t_type$_t_address_payable_$",
-                                "typeString": "type(address payable)"
-                              },
-                              "typeName": {
-                                "id": 2542,
-                                "name": "address",
-                                "nodeType": "ElementaryTypeName",
-                                "src": "5748:8:12",
-                                "stateMutability": "payable",
-                                "typeDescriptions": {}
-                              }
-                            },
-                            "id": 2545,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": false,
-                            "kind": "typeConversion",
-                            "lValueRequested": false,
-                            "names": [],
-                            "nodeType": "FunctionCall",
-                            "src": "5748:11:12",
-                            "tryCall": false,
-                            "typeDescriptions": {
-                              "typeIdentifier": "t_address_payable",
-                              "typeString": "address payable"
-                            }
-                          },
-                          "id": 2546,
-                          "isConstant": false,
-                          "isLValue": false,
-                          "isPure": false,
-                          "lValueRequested": false,
-                          "memberName": "send",
-                          "nodeType": "MemberAccess",
-                          "src": "5748:16:12",
-                          "typeDescriptions": {
-                            "typeIdentifier": "t_function_send_nonpayable$_t_uint256_$returns$_t_bool_$",
-                            "typeString": "function (uint256) returns (bool)"
-                          }
-                        },
-                        "id": 2550,
-                        "isConstant": false,
-                        "isLValue": false,
-                        "isPure": false,
-                        "kind": "functionCall",
-                        "lValueRequested": false,
-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "5748:30:12",
-                        "tryCall": false,
-                        "typeDescriptions": {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      }
-                    ],
-                    "expression": {
-                      "argumentTypes": [
-                        {
-                          "typeIdentifier": "t_bool",
-                          "typeString": "bool"
-                        }
-                      ],
-                      "id": 2541,
-                      "name": "require",
-                      "nodeType": "Identifier",
-                      "overloadedDeclarations": [
-                        4294967278,
-                        4294967278
-                      ],
-                      "referencedDeclaration": 4294967278,
-                      "src": "5740:7:12",
-                      "typeDescriptions": {
-                        "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$",
-                        "typeString": "function (bool) pure"
-                      }
-                    },
-                    "id": 2551,
-                    "isConstant": false,
-                    "isLValue": false,
-                    "isPure": false,
-                    "kind": "functionCall",
-                    "lValueRequested": false,
-                    "names": [],
-                    "nodeType": "FunctionCall",
-                    "src": "5740:39:12",
-                    "tryCall": false,
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$__$",
-                      "typeString": "tuple()"
-                    }
-                  },
-                  "id": 2552,
-                  "nodeType": "ExpressionStatement",
-                  "src": "5740:39:12"
-                }
-              ]
-            },
-            "functionSelector": "fd2b0492",
-            "id": 2554,
-            "implemented": true,
-            "kind": "function",
-            "modifiers": [
-              {
-                "id": 2509,
-                "kind": "modifierInvocation",
-                "modifierName": {
-                  "id": 2508,
-                  "name": "onlyOwner",
-                  "nodeType": "IdentifierPath",
-                  "referencedDeclaration": 46,
-                  "src": "5582:9:12"
-                },
-                "nodeType": "ModifierInvocation",
-                "src": "5582:9:12"
-              }
-            ],
-            "name": "withdrawTeam",
-            "nameLocation": "5538:12:12",
-            "nodeType": "FunctionDefinition",
-            "parameters": {
-              "id": 2507,
-              "nodeType": "ParameterList",
-              "parameters": [
-                {
-                  "constant": false,
-                  "id": 2506,
-                  "mutability": "mutable",
-                  "name": "amount",
-                  "nameLocation": "5559:6:12",
-                  "nodeType": "VariableDeclaration",
-                  "scope": 2554,
-                  "src": "5551:14:12",
-                  "stateVariable": false,
-                  "storageLocation": "default",
-                  "typeDescriptions": {
-                    "typeIdentifier": "t_uint256",
-                    "typeString": "uint256"
-                  },
-                  "typeName": {
-                    "id": 2505,
-                    "name": "uint256",
-                    "nodeType": "ElementaryTypeName",
-                    "src": "5551:7:12",
-                    "typeDescriptions": {
-                      "typeIdentifier": "t_uint256",
-                      "typeString": "uint256"
-                    }
-                  },
-                  "visibility": "internal"
-                }
-              ],
-              "src": "5550:16:12"
-            },
-            "returnParameters": {
-              "id": 2510,
-              "nodeType": "ParameterList",
-              "parameters": [],
-              "src": "5592:0:12"
-            },
-            "scope": 2555,
-            "src": "5529:257:12",
-            "stateMutability": "payable",
-            "virtual": false,
-            "visibility": "public"
-          }
-        ],
-        "scope": 2556,
-        "src": "189:5599:12",
-        "usedErrors": []
-      }
-    ],
-    "src": "32:5756:12"
-  },
-  "compiler": {
-    "name": "solc",
-    "version": "0.8.9+commit.e5eed63a.Emscripten.clang"
-  },
-  "networks": {
-    "1": {
-      "events": {},
-      "links": {},
-      "address": "0x4a4017eB72CCB4CeA7ca1b1321cD849B4aaF6499",
-      "transactionHash": "0xa597d73d6624eb3d2d62eaaeec16ac2e83597e337b2a6ed13c0fbe90176a0429"
-    },
-    "4": {
-      "events": {
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "approved",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "tokenId",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        },
-        "0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "operator",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "internalType": "bool",
-              "name": "approved",
-              "type": "bool"
-            }
-          ],
-          "name": "ApprovalForAll",
-          "type": "event"
-        },
-        "0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "previousOwner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "newOwner",
-              "type": "address"
-            }
-          ],
-          "name": "OwnershipTransferred",
-          "type": "event"
-        },
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "to",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "tokenId",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        }
-      },
-      "links": {},
-      "address": "0xBfe7f07224c0cEB5B164649e92E7772E6D859B9A",
-      "transactionHash": "0x4f4daebe71ccf3d100f7c69c47026e65a83db9b768af47836e7a7b54737b7351"
-    }
-  },
-  "schemaVersion": "3.4.3",
-  "updatedAt": "2021-11-03T05:58:11.885Z",
-  "networkType": "ethereum",
-  "devdoc": {
-    "kind": "dev",
-    "methods": {
-      "approve(address,uint256)": {
-        "details": "See {IERC721-approve}."
-      },
-      "balanceOf(address)": {
-        "details": "See {IERC721-balanceOf}."
-      },
-      "getApproved(uint256)": {
-        "details": "See {IERC721-getApproved}."
-      },
-      "isApprovedForAll(address,address)": {
-        "details": "See {IERC721-isApprovedForAll}."
-      },
-      "name()": {
-        "details": "See {IERC721Metadata-name}."
-      },
-      "owner()": {
-        "details": "Returns the address of the current owner."
-      },
-      "ownerOf(uint256)": {
-        "details": "See {IERC721-ownerOf}."
-      },
-      "renounceOwnership()": {
-        "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner."
-      },
-      "safeTransferFrom(address,address,uint256)": {
-        "details": "See {IERC721-safeTransferFrom}."
-      },
-      "safeTransferFrom(address,address,uint256,bytes)": {
-        "details": "See {IERC721-safeTransferFrom}."
-      },
-      "setApprovalForAll(address,bool)": {
-        "details": "See {IERC721-setApprovalForAll}."
-      },
-      "supportsInterface(bytes4)": {
-        "details": "See {IERC165-supportsInterface}."
-      },
-      "symbol()": {
-        "details": "See {IERC721Metadata-symbol}."
-      },
-      "tokenByIndex(uint256)": {
-        "details": "See {IERC721Enumerable-tokenByIndex}."
-      },
-      "tokenOfOwnerByIndex(address,uint256)": {
-        "details": "See {IERC721Enumerable-tokenOfOwnerByIndex}."
-      },
-      "tokenURI(uint256)": {
-        "details": "See {IERC721Metadata-tokenURI}."
-      },
-      "totalSupply()": {
-        "details": "See {IERC721Enumerable-totalSupply}."
-      },
-      "transferFrom(address,address,uint256)": {
-        "details": "See {IERC721-transferFrom}."
-      },
-      "transferOwnership(address)": {
-        "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
-      }
-    },
-    "version": 1
-  },
-  "userdoc": {
-    "kind": "user",
-    "methods": {},
-    "version": 1
-  }
-}
\ No newline at end of file
diff --git a/README.md b/README.md
index 6a38679..c9996e7 100644
--- a/README.md
+++ b/README.md
@@ -17,11 +17,92 @@ JSON API that servers ERC-721 compatible metadata for an NFT collection on the b
 ## Dependencies ⚒
 
 ```
+nvm use 16
 npm install
+npm install --dev
 ```
 
 ## Run 🚀
 
+## Background Smart-Contract work
+
+Keep an eye on https://status.opensea.io/
+Get the right chain data from https://chainlist.org/
+
+
+### Setup basic Env vars
+- RPC urls are define by the Alchemy account. Code changes must be made to use Infura.
+```
+RINKEBY_RPC_URL=""
+MAINNET_RPC_URL=""
+MUMBAI_RPC_URL=""
+POLYGON_RPC_URL="
+```
+- The `SELECTED_RPC_URL` must be one of the above
+- The `SELECTED_RPC_API_KEY` must be the API from Alchemy.
+- The `SELECTED_NETWORK` is the name of the network you want to deploy. See `hardhat.config.js` file for options.
+- The `OWNER_ADDRESS` and `ACCOUNT_PRIVATE_KEY` are the address and account private key you are using to deploy the smart-contract.
+- The `NFT_CONTRACT_ADDRESS` is determined by the `npx hardhat deploy` script 
+- The `BASE_METADATA_URL` is stored in the smart-contract to determine where the metadata for the NFTs can be found. 
+- The `MINT_PRICE` must match the same var on `NFT.sol`.
+
+### Send images and metadata to IPFS
+
+#### Via script
+- Run `scripts/upload_images_ipfs.js`
+
+#### Manually
+- Execute first steps
+```
+npx ipfs-car --pack images --output images.car
+# MANUALLY SET ALL METADATA IMAGE URL TO IPFS ADDRESS
+
+npx ipfs-car --pack metadata --output metadata.car
+```
+- Manually host it online on NFT.storage or Pinata.
+- Manually set `BASE_METADATA_URL` on `.env` file
+
+#### Send images to google cloud storage and host the metadata on a private website
+- Set up a Google Cloud Storage account
+- Enable API access
+- Download a key file and add to this repo root
+- Run `scripts/upload_images_gcs.js`
+
+### Deploy smart-contracts and mint a couple of tokens
+```
+source .env
+
+npx hardhat compile --verbose
+npx hardhat check-balance
+npx hardhat deploy
+# MANUALLY SET NFT_CONTRACT_ADDRESS ON ENV FILE
+```
+The `NFT_CONTRACT_ADDRESS` env var is determined by the `npx hardhat deploy` script 
+
+**OPTIONAL** The `ETHERSCAN_API_KEY` env var can be set up here by creating an account on Etherscan that allow you to attach a smart-contract source to a deployed contract.
+```
+source .env
+npx hardhat verify $NFT_CONTRACT_ADDRESS
+```
+Now set the URL for the NFTs metadata on the smart-contract. 
+```
+source .env
+npx hardhat set-base-token-uri --base-url $BASE_METADATA_URL
+```
+Mint your first token!
+```
+npx hardhat mint --address $OWNER_ADDRESS
+```
+
+### Get listed on Open Sea
+- Access https://opensea.io/get-listed and enter your smart-contract address
+- Check if the NFT is shown correctly
+
+### Sell it on opensea
+```
+npx hardhat sell --token-id 1 --start-price 0.001
+```
+
 ## Development mode
 
 ```
@@ -46,6 +127,9 @@ pm2 stop [ID]
 * `npm run upload_images_ipfs`: uploads images to IPFS
 * `npm run upload_images_gcs`: uploads images to Google Cloud Storage. Just make sure you have your `gcs.json` keyfile on the project directory
 * `npm run remove_none_traits`: removes all traits marked as "none" to make the metadata rarity.tools friendly
+* `node ./scripts/generate.js -b ./collections/PH_8747/breath/0.json -w 3000 -h 3000 -p ./collections/PH_8747/images/0
+` : generates a new image
+
 
 ## Checklist 📝
 
diff --git a/contracts/NFT.sol b/contracts/NFT.sol
new file mode 100644
index 0000000..f13837c
--- /dev/null
+++ b/contracts/NFT.sol
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+
+contract NFT is ERC721, Ownable {
+
+  // Constants
+  uint256 public constant MAX_SUPPLY = 1000;
+
+  /// @dev Base token URI used as a prefix by tokenURI().
+  string public baseTokenURI;
+
+  constructor() ERC721("PH_8747", "B4S") {
+    baseTokenURI = "https://api.breath4.sale/PH_8747/metadata/";
+    uint i=0;
+    for (i = 0; i < MAX_SUPPLY; i += 1) {  //for loop example
+      _safeMint(owner(), i);
+    }
+  }
+
+  /// @dev Returns an URI for a given token ID
+  function _baseURI() internal view virtual override returns (string memory) {
+    return baseTokenURI;
+  }
+
+  /// @dev Sets the base token URI prefix.
+  function setBaseTokenURI(string memory _baseTokenURI) public onlyOwner {
+    baseTokenURI = _baseTokenURI;
+  }
+
+}
diff --git a/hardhat.config.js b/hardhat.config.js
new file mode 100644
index 0000000..f9b9fe3
--- /dev/null
+++ b/hardhat.config.js
@@ -0,0 +1,48 @@
+/**
+ * @type import('hardhat/config').HardhatUserConfig
+ */
+
+require('dotenv').config();
+require("@nomiclabs/hardhat-ethers");
+require("./tasks/deploy.js");
+require("./tasks/mint.js");
+require("./tasks/sell.js");
+require("./tasks/sell2.js");
+require("@nomiclabs/hardhat-etherscan");
+require("hardhat-gas-reporter");
+
+const { RINKEBY_RPC_URL, MAINNET_RPC_URL, MUMBAI_RPC_URL, POLYGON_RPC_URL, ACCOUNT_PRIVATE_KEY, ETHERSCAN_API_KEY, SELECTED_NETWORK} = process.env;
+
+module.exports = {
+    solidity: "0.8.1",
+    defaultNetwork: SELECTED_NETWORK,
+    networks: {
+        hardhat: {},
+        rinkeby: {
+            chainId: 4,
+            url: `${RINKEBY_RPC_URL}`,
+            accounts: [`0x${ACCOUNT_PRIVATE_KEY}`]
+        },
+        mainnet: {
+            chainId: 1,
+            url: `${MAINNET_RPC_URL}`,
+            accounts: [`0x${ACCOUNT_PRIVATE_KEY}`]
+        },
+        maticmum: {
+            chainId: 80001,
+            url: `${MUMBAI_RPC_URL}`,
+            accounts: [`0x${ACCOUNT_PRIVATE_KEY}`]
+        },
+        matic: {
+            chainId: 137,
+            url: `${POLYGON_RPC_URL}`,
+            accounts: [`0x${ACCOUNT_PRIVATE_KEY}`]
+        },
+    },
+    etherscan: {
+        apiKey: ETHERSCAN_API_KEY,
+    },
+    gasReporter: {
+        currency: 'EUR',
+    }
+}
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index 6778a8c..0000000
--- a/metadata/0
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diff --git a/metadata/1 b/metadata/1
deleted file mode 100644
index 3e64887..0000000
--- a/metadata/1
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diff --git a/metadata/10 b/metadata/10
deleted file mode 100644
index 9d55540..0000000
--- a/metadata/10
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deleted file mode 100644
index 4558e2e..0000000
--- a/metadata/11
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diff --git a/metadata/12 b/metadata/12
deleted file mode 100644
index 368e943..0000000
--- a/metadata/12
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diff --git a/metadata/13 b/metadata/13
deleted file mode 100644
index 93c0d95..0000000
--- a/metadata/13
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deleted file mode 100644
index c9a5fe5..0000000
--- a/metadata/14
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diff --git a/metadata/15 b/metadata/15
deleted file mode 100644
index 055d7a7..0000000
--- a/metadata/15
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deleted file mode 100644
index 3b18cb2..0000000
--- a/metadata/16
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deleted file mode 100644
index df8e48d..0000000
--- a/metadata/17
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diff --git a/metadata/18 b/metadata/18
deleted file mode 100644
index 080f5d8..0000000
--- a/metadata/18
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diff --git a/metadata/19 b/metadata/19
deleted file mode 100644
index 075ea0b..0000000
--- a/metadata/19
+++ /dev/null
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diff --git a/metadata/2 b/metadata/2
deleted file mode 100644
index bc0433f..0000000
--- a/metadata/2
+++ /dev/null
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diff --git a/metadata/3 b/metadata/3
deleted file mode 100644
index 010c29f..0000000
--- a/metadata/3
+++ /dev/null
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diff --git a/metadata/4 b/metadata/4
deleted file mode 100644
index 114161a..0000000
--- a/metadata/4
+++ /dev/null
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diff --git a/metadata/5 b/metadata/5
deleted file mode 100644
index 250d9c8..0000000
--- a/metadata/5
+++ /dev/null
@@ -1 +0,0 @@
-{"name":"crocs#5","description":"desc test","image":"https://storage.googleapis.com/funkycrocs/4eb4e7f9fb3bc3895a152a15dcd24c7ed28686b2","attributes":[{"trait_type":"Fondos","value":"k"},{"trait_type":"Base Piel Crocs","value":"t"},{"trait_type":"Accesorios","value":"w"},{"trait_type":"Gorros","value":"c"},{"trait_type":"Ojos","value":"yy"},{"trait_type":"Camisetas","value":"g"}]}
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diff --git a/metadata/6 b/metadata/6
deleted file mode 100644
index f3517e7..0000000
--- a/metadata/6
+++ /dev/null
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diff --git a/metadata/7 b/metadata/7
deleted file mode 100644
index b081046..0000000
--- a/metadata/7
+++ /dev/null
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diff --git a/metadata/8 b/metadata/8
deleted file mode 100644
index d89b6a5..0000000
--- a/metadata/8
+++ /dev/null
@@ -1 +0,0 @@
-{"name":"crocs#8","description":"desc test","image":"https://storage.googleapis.com/funkycrocs/a46784051a4ba4097bea51b188999be1c2f3a508","attributes":[{"trait_type":"Fondos","value":"j"},{"trait_type":"Base Piel Crocs","value":"t"},{"trait_type":"Accesorios","value":"e"},{"trait_type":"Gorros","value":"m"},{"trait_type":"Ojos","value":"tt"},{"trait_type":"Camisetas","value":"f"}]}
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diff --git a/metadata/9 b/metadata/9
deleted file mode 100644
index a7f000e..0000000
--- a/metadata/9
+++ /dev/null
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diff --git a/package-lock.json b/package-lock.json
index 7ac9f83..996288f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,1301 +1,34241 @@
 {
   "name": "nft-collection-api",
   "version": "1.0.0",
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+      "license": "MIT",
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+        "opensea-js": "^3.0.2",
+        "supports-color": "^9.2.2",
+        "web3": "^1.7.1"
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-        "@ethersproject/logger": "^5.0.5",
-        "@ethersproject/properties": "^5.0.3",
-        "@ethersproject/strings": "^5.0.4"
+    "node_modules/@0x/assert/node_modules/@0x/utils": {
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+      "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-6.5.3.tgz",
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+        "detect-node": "2.0.3",
+        "ethereum-types": "^3.7.0",
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+        "ethers": "~4.0.4",
+        "isomorphic-fetch": "2.2.1",
+        "js-sha3": "^0.7.0",
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-    "@ethersproject/abstract-provider": {
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-      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-provider/-/abstract-provider-5.4.1.tgz",
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-        "@ethersproject/properties": "^5.4.0",
-        "@ethersproject/transactions": "^5.4.0",
-        "@ethersproject/web": "^5.4.0"
-      }
+    "node_modules/@0x/assert/node_modules/@types/node": {
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+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.54.tgz",
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-        "@ethersproject/logger": "^5.4.0",
-        "@ethersproject/properties": "^5.4.0"
+    "node_modules/@0x/assert/node_modules/ethers": {
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+      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.49.tgz",
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-        "@ethersproject/logger": "^5.4.0",
-        "@ethersproject/rlp": "^5.4.0"
+    "node_modules/@0x/assert/node_modules/ethers/node_modules/js-sha3": {
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+      "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+      "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
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+    "node_modules/@0x/assert/node_modules/hash.js": {
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+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "requires": {
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+          }
+        },
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+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
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+        }
       }
     },
     "wrappy": {
@@ -3095,13 +38777,225 @@
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "ws": {
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+      "version": "7.4.6",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
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+      "requires": {}
+    },
+    "wyvern-js": {
+      "version": "git+ssh://git@github.com/ProjectOpenSea/wyvern-js.git#7823dfdf5a272ebbc6a46e66d23563a9d6cc1be2",
+      "integrity": "sha512-ssg+jiWFIs5/RWzw8nVyA9eemmdwpe0stDoAwtYBpeP658hJ3NbZQAwYpI9HqvJ8Jvh2qFeCPHX5N/yPWf0Zqg==",
+      "from": "wyvern-js@git+https://github.com/ProjectOpenSea/wyvern-js.git#7823dfdf5a272ebbc6a46e66d23563a9d6cc1be2",
       "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
+        "@0x/assert": "^3.0.30",
+        "@0x/base-contract": "^6.4.4",
+        "@0x/json-schemas": "^6.4.0",
+        "@0x/utils": "https://github.com/ProjectOpensea/0x-tools/raw/provider-patch/utils/0x-utils-6.5.0.tgz",
+        "@0x/web3-wrapper": "^7.6.1",
+        "bn.js": "^4.11.8",
+        "ethereumjs-abi": "https://github.com/ProjectWyvern/ethereumjs-abi.git",
+        "ethereumjs-util": "^5.1.3",
+        "ethers": "^4.0.49",
+        "json-loader": "^0.5.7",
+        "jsonschema": "^1.2.2",
+        "lodash": "^4.17.21",
+        "web3": "^1.7.0"
+      },
+      "dependencies": {
+        "ethereumjs-abi": {
+          "version": "git+ssh://git@github.com/ProjectWyvern/ethereumjs-abi.git#3d2d89641a6ad5984929b6ca4b646452ec74f73d",
+          "from": "ethereumjs-abi@https://github.com/ProjectWyvern/ethereumjs-abi.git",
+          "requires": {
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+            "ethereumjs-util": "^4.3.0"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
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+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-4.5.1.tgz",
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+              "requires": {
+                "bn.js": "^4.8.0",
+                "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
+                "rlp": "^2.0.0"
+              }
+            }
+          }
+        },
+        "ethereumjs-util": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+          "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "elliptic": "^6.5.2",
+            "ethereum-cryptography": "^0.1.3",
+            "ethjs-util": "^0.1.3",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1"
+          }
+        },
+        "ethers": {
+          "version": "4.0.49",
+          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.49.tgz",
+          "integrity": "sha512-kPltTvWiyu+OktYy1IStSO16i2e7cS9D9OxZ81q2UUaiNPVrm/RTcbxamCXF9VUSKzJIdJV68EAIhTEVBalRWg==",
+          "requires": {
+            "aes-js": "3.0.0",
+            "bn.js": "^4.11.9",
+            "elliptic": "6.5.4",
+            "hash.js": "1.1.3",
+            "js-sha3": "0.5.7",
+            "scrypt-js": "2.0.4",
+            "setimmediate": "1.0.4",
+            "uuid": "2.0.1",
+            "xmlhttprequest": "1.8.0"
+          }
+        },
+        "hash.js": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.3.tgz",
+          "integrity": "sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "minimalistic-assert": "^1.0.0"
+          }
+        },
+        "js-sha3": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        },
+        "scrypt-js": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.4.tgz",
+          "integrity": "sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw=="
+        },
+        "setimmediate": {
+          "version": "1.0.4",
+          "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.4.tgz",
+          "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48="
+        },
+        "uuid": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
+          "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w="
+        }
+      }
+    },
+    "wyvern-schemas": {
+      "version": "git+ssh://git@github.com/ProjectOpenSea/wyvern-schemas.git#0a8d569931ddb6faa6e96f5a60fa2f83f0a8750e",
+      "integrity": "sha512-5o3ysewnFq3YWspJjIF4e0XhJvqoMnnsAGB7zYzWK0ou/Kk3zXpwmuL7J7luWKrM4WJLt6aJcCniAPLhV+8yWg==",
+      "from": "wyvern-schemas@git+https://github.com/ProjectOpenSea/wyvern-schemas.git#0a8d569931ddb6faa6e96f5a60fa2f83f0a8750e",
+      "requires": {
+        "@0x/utils": "https://github.com/ProjectOpensea/0x-tools/raw/provider-patch/utils/0x-utils-6.5.0.tgz",
+        "axios": "^0.17.1",
+        "wyvern-js": "git+https://github.com/ProjectOpenSea/wyvern-js.git#f7704ad2571f05136f9a42735966dcd3f1485474"
+      },
+      "dependencies": {
+        "ethereumjs-abi": {
+          "version": "git+ssh://git@github.com/ProjectWyvern/ethereumjs-abi.git#3d2d89641a6ad5984929b6ca4b646452ec74f73d",
+          "from": "ethereumjs-abi@https://github.com/ProjectWyvern/ethereumjs-abi.git",
+          "requires": {
+            "bn.js": "^4.10.0",
+            "ethereumjs-util": "^4.3.0"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
+              "version": "4.5.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-4.5.1.tgz",
+              "integrity": "sha512-WrckOZ7uBnei4+AKimpuF1B3Fv25OmoRgmYCpGsP7u8PFxXAmAgiJSYT2kRWnt6fVIlKaQlZvuwXp7PIrmn3/w==",
+              "requires": {
+                "bn.js": "^4.8.0",
+                "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
+                "rlp": "^2.0.0"
+              }
+            }
+          }
+        },
+        "ethereumjs-util": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+          "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "elliptic": "^6.5.2",
+            "ethereum-cryptography": "^0.1.3",
+            "ethjs-util": "^0.1.3",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1"
+          }
+        },
+        "ethers": {
+          "version": "4.0.49",
+          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.49.tgz",
+          "integrity": "sha512-kPltTvWiyu+OktYy1IStSO16i2e7cS9D9OxZ81q2UUaiNPVrm/RTcbxamCXF9VUSKzJIdJV68EAIhTEVBalRWg==",
+          "requires": {
+            "aes-js": "3.0.0",
+            "bn.js": "^4.11.9",
+            "elliptic": "6.5.4",
+            "hash.js": "1.1.3",
+            "js-sha3": "0.5.7",
+            "scrypt-js": "2.0.4",
+            "setimmediate": "1.0.4",
+            "uuid": "2.0.1",
+            "xmlhttprequest": "1.8.0"
+          }
+        },
+        "hash.js": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.3.tgz",
+          "integrity": "sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "minimalistic-assert": "^1.0.0"
+          }
+        },
+        "js-sha3": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        },
+        "scrypt-js": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.4.tgz",
+          "integrity": "sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw=="
+        },
+        "setimmediate": {
+          "version": "1.0.4",
+          "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.4.tgz",
+          "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48="
+        },
+        "uuid": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
+          "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w="
+        },
+        "wyvern-js": {
+          "version": "git+ssh://git@github.com/ProjectOpenSea/wyvern-js.git#f7704ad2571f05136f9a42735966dcd3f1485474",
+          "integrity": "sha512-pKdx3EQ3IuGCN6a+8I68W0BmSnZKKcJ6O8nOMHDL47N9j0ppwkj/SIy/KZ3DHHMre+HjozYod/NKhTYbTyaJsQ==",
+          "from": "wyvern-js@git+https://github.com/ProjectOpenSea/wyvern-js.git#f7704ad2571f05136f9a42735966dcd3f1485474",
+          "requires": {
+            "@0x/assert": "^3.0.30",
+            "@0x/base-contract": "^6.4.4",
+            "@0x/json-schemas": "^6.4.0",
+            "@0x/utils": "https://github.com/ProjectOpensea/0x-tools/raw/provider-patch/utils/0x-utils-6.5.0.tgz",
+            "@0x/web3-wrapper": "^7.6.1",
+            "bn.js": "^4.11.8",
+            "ethereumjs-abi": "https://github.com/ProjectWyvern/ethereumjs-abi.git",
+            "ethereumjs-util": "^5.1.3",
+            "ethers": "^4.0.49",
+            "json-loader": "^0.5.7",
+            "jsonschema": "^1.2.2",
+            "lodash": "^4.17.21",
+            "web3": "^1.7.0"
+          }
+        }
       }
     },
     "xhr": {
@@ -3127,6 +39021,23 @@
         "timed-out": "^4.0.1",
         "url-set-query": "^1.0.0",
         "xhr": "^2.0.4"
+      },
+      "dependencies": {
+        "query-string": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/query-string/-/query-string-5.1.1.tgz",
+          "integrity": "sha512-gjWOsm2SoGlgLEdAGt7a6slVOk9mGiXmPFMqrEhLQ68rhQuBnpfs3+EmlvqKyxnCo9/PPlF+9MtY02S1aFg+Jw==",
+          "requires": {
+            "decode-uri-component": "^0.2.0",
+            "object-assign": "^4.1.0",
+            "strict-uri-encode": "^1.0.0"
+          }
+        },
+        "strict-uri-encode": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz",
+          "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM="
+        }
       }
     },
     "xhr-request-promise": {
@@ -3145,6 +39056,11 @@
         "cookiejar": "^2.1.1"
       }
     },
+    "xmlhttprequest": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
+      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
+    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
@@ -3165,24 +39081,26 @@
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
       "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
     },
-    "yargs": {
-      "version": "16.2.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
-      "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+    "yargs-parser": {
+      "version": "20.2.4",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
+      "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA=="
+    },
+    "yargs-unparser": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-2.0.0.tgz",
+      "integrity": "sha512-7pRTIA9Qc1caZ0bZ6RYRGbHJthJWuakf+WmHK0rVeLkNrrGhfoabBNdue6kdINI6r4if7ocq9aD/n7xwKOdzOA==",
       "requires": {
-        "cliui": "^7.0.2",
-        "escalade": "^3.1.1",
-        "get-caller-file": "^2.0.5",
-        "require-directory": "^2.1.1",
-        "string-width": "^4.2.0",
-        "y18n": "^5.0.5",
-        "yargs-parser": "^20.2.2"
+        "camelcase": "^6.0.0",
+        "decamelize": "^4.0.0",
+        "flat": "^5.0.2",
+        "is-plain-obj": "^2.1.0"
       }
     },
-    "yargs-parser": {
-      "version": "20.2.9",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
-      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w=="
+    "yocto-queue": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
+      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="
     }
   }
 }
diff --git a/package.json b/package.json
index 4776e16..f0f0200 100644
--- a/package.json
+++ b/package.json
@@ -1,17 +1,26 @@
 {
   "name": "nft-collection-api",
   "version": "1.0.0",
-  "description": "Node.js API for NFT collections supporting diverse features",
+  "description": "B4S smart-contracts",
   "main": "main.js",
   "dependencies": {
+    "@0x/subproviders": "^6.6.5",
     "@kleros/file-to-ipfs": "^0.3.2",
+    "@nomiclabs/hardhat-ethers": "^2.0.2",
+    "@nomiclabs/hardhat-etherscan": "^3.0.0",
     "dotenv": "^10.0.0",
-    "web3": "^1.5.2"
+    "ethers": "^5.6.2",
+    "hardhat": "^2.9.3",
+    "node-fetch": "^2.6.6",
+    "opensea-js": "^3.0.2",
+    "supports-color": "^9.2.2",
+    "web3": "^1.7.1"
+  },
+  "devDependencies": {
+    "@openzeppelin/contracts": "^4.4.0",
+    "hardhat-gas-reporter": "^1.0.8"
   },
-  "devDependencies": {},
   "scripts": {
-    "test": "test",
-    "start": "node scripts/start.js",
     "shuffle": "node scripts/shuffle.js",
     "upload_images_gcs": "GOOGLE_APPLICATION_CREDENTIALS=gcs.json node scripts/upload_images_gcs.js",
     "upload_images_ipfs": "node scripts/upload_images_ipfs.js",
@@ -21,6 +30,9 @@
     "type": "git",
     "url": "git+https://github.com/FilosofiaCodigo/nft-collection-api.git"
   },
+  "engines": {
+    "node": "^16"
+  },
   "keywords": [
     "nft",
     "metadata",
diff --git a/scripts/start.js b/scripts/start.js
deleted file mode 100644
index 6eca56a..0000000
--- a/scripts/start.js
+++ /dev/null
@@ -1,68 +0,0 @@
-var MAX_SUPPLY = null
-const CONTRACT_ADDRESS = "0xBfe7f07224c0cEB5B164649e92E7772E6D859B9A"
-const PORT = 3000
-const IS_REVEALED = true
-const UNREVEALED_METADATA = {
-  "name":"Unrevealed Croc",
-  "description":"???",
-  "image":"http://134.209.33.178:3000/unrevealed/image.png",
-  "attributes":[{"???":"???"}]
-}
-
-const fs = require('fs')
-const express = require('express')
-const Web3 = require('web3')
-require('dotenv').config()
-const abi = require('../Contract.json')
-const Contract = require('web3-eth-contract')
-Contract.setProvider(process.env.RINKEBY_RPC_URL)
-const contract = new Contract(abi, CONTRACT_ADDRESS)
-
-const app = express()
-
-app.use(express.static(__dirname + 'public'))
-app.use('/unrevealed', express.static(__dirname + '/unrevealed'));
-
-async function initAPI() {
-  MAX_SUPPLY = parseInt(await contract.methods.MAX_SUPPLY().call())
-  console.log("MAX_SUPPLY is: " + MAX_SUPPLY)
-  app.listen(PORT, () => {
-    console.log(`Listening to port ${PORT}`)
-  })
-}
-async function serveMetadata(res, nft_id) {
-  var token_count = parseInt(await contract.methods.totalSupply().call())
-  let return_value = {}
-  if(nft_id < 0)
-  {
-    return_value = {error: "NFT ID must be greater than 0"}
-  }else if(nft_id >= MAX_SUPPLY)
-  {
-    return_value = {error: "NFT ID must be lesser than max supply"}
-  }else if (nft_id >= token_count)
-  {
-    return_value = {error: "NFT ID must be already minted"}
-  }else
-  {
-    return_value = fs.readFileSync("./metadata/" + nft_id).toString().trim()
-  }
-  res.send(return_value)
-}
-
-app.get('/:id', (req, res) => {
-  res.setHeader('Content-Type', 'application/json');
-  if(isNaN(req.params.id))//in not number
-  {
-    res.send(UNREVEALED_METADATA)    
-  }
-  else if(!IS_REVEALED)
-  {
-    res.send(
-      )
-  }else
-  {
-    serveMetadata(res, req.params.id)
-  }
-})
-
-initAPI()
diff --git a/scripts/upload_images_gcs.js b/scripts/upload_images_gcs.js
index d79814a..fa16316 100644
--- a/scripts/upload_images_gcs.js
+++ b/scripts/upload_images_gcs.js
@@ -8,7 +8,7 @@ const crypto = require('crypto')
 const path = require('path');
 const {Storage} = require('@google-cloud/storage');
 
-const storage = new Storage();
+const storage = new Storage({keyFilename: 'key.json'});
 
 async function uploadSingleFile(file_path, file_name) {
   await storage.bucket(BUCKET_NAME).upload(file_path, {
diff --git a/tasks/deploy.js b/tasks/deploy.js
new file mode 100644
index 0000000..844d0ab
--- /dev/null
+++ b/tasks/deploy.js
@@ -0,0 +1,14 @@
+const { task } = require("hardhat/config");
+const { getAccount } = require("./helpers");
+
+
+task("check-balance", "Prints out the balance of your account").setAction(async function (taskArguments, hre) {
+	const account = getAccount();
+	console.log(`Account balance for ${account.address}: ${await account.getBalance()}`);
+});
+
+task("deploy", "Deploys the NFT.sol contract").setAction(async function (taskArguments, hre) {
+	const nftContractFactory = await hre.ethers.getContractFactory("NFT", getAccount());
+	const nft = await nftContractFactory.deploy();
+	console.log(`Contract deployed to address: ${nft.address}`);
+});
diff --git a/tasks/helpers.js b/tasks/helpers.js
new file mode 100644
index 0000000..4319509
--- /dev/null
+++ b/tasks/helpers.js
@@ -0,0 +1,111 @@
+const { ethers } = require("ethers");
+const { getContractAt } = require("@nomiclabs/hardhat-ethers/internal/helpers");
+const Web3ProviderEngine = require("web3-provider-engine");
+const PrivateKeyWalletSubprovider = require("@0x/subproviders").PrivateKeyWalletSubprovider;
+const RPCSubprovider = require("web3-provider-engine/subproviders/rpc");
+
+// Helper method for fetching environment variables from .env
+function getEnvVariable(key, defaultValue) {
+    if (process.env[key]) {
+        return process.env[key];
+    }
+    if (!defaultValue) {
+        throw `${key} is not defined and no default value was provided`;
+    }
+    return defaultValue;
+}
+
+// Helper method for fetching a connection provider to the Ethereum network
+function getProvider() {
+    /*return ethers.getDefaultProvider(getEnvVariable("NETWORK", "rinkeby"), {
+        alchemy: getEnvVariable("ALCHEMY_KEY"),
+    });*/
+    return new ethers.providers.AlchemyProvider(getEnvVariable("SELECTED_NETWORK"), getEnvVariable("SELECTED_RPC_API_KEY"));
+}
+
+// Helper method for fetching a wallet account using an environment variable for the PK
+function getAccount() {
+    return new ethers.Wallet(getEnvVariable("ACCOUNT_PRIVATE_KEY"), getProvider());
+}
+
+// Helper method for fetching a contract instance at a given address
+function getContract(contractName, hre) {
+    const account = getAccount();
+    return getContractAt(hre, contractName, getEnvVariable("NFT_CONTRACT_ADDRESS"), account);
+}
+
+function getFactoryContract(contractName, hre) {
+    const account = getAccount();
+    return getContractAt(hre, contractName, getEnvVariable("FACTORY_CONTRACT_ADDRESS"), account);
+}
+
+function getSeaPort() {
+    const opensea = require("opensea-js");
+
+    const configs = require("../hardhat.config.js");
+
+    const priv_key = getEnvVariable("ACCOUNT_PRIVATE_KEY");
+    const rpc_url = getEnvVariable("SELECTED_RPC_URL");
+    const chain_id = Number(getEnvVariable("CHAIN_ID", 4));
+
+    console.log("rpc_url", rpc_url);
+
+    const wallet_subprovider = new PrivateKeyWalletSubprovider(priv_key, chain_id);
+    const rpc_subprovider = new RPCSubprovider({
+      rpcUrl: rpc_url,
+    });
+
+    //console.log(wallet_subprovider, rpc_subprovider);
+
+    const providerEngine = new Web3ProviderEngine();
+    providerEngine.addProvider(wallet_subprovider);
+    providerEngine.addProvider(rpc_subprovider);
+    providerEngine.start();
+
+    const options = {};
+
+    options.networkName = ((net) => {
+        switch(net) {
+            case "mainnet":
+            case "live": return opensea.Network.Main;
+            case "rinkeby":
+            default: return opensea.Network.Rinkeby;
+        }
+    })(getEnvVariable("SELECTED_NETWORK", "rinkeby"));
+
+    options.apiKey = process.env["API_KEY"] ?? undefined;
+
+    const seaport = new opensea.OpenSeaPort(
+      providerEngine,
+      options,
+      (arg) => console.log(arg)
+    );
+
+    return seaport;
+}
+
+function getWETHAddress() {
+    const network = getEnvVariable("SELECTED_NETWORK");
+    switch (network) {
+      case 'rinkeby':
+        return "0xc778417e063141139fce010982780140aa0cd5ab";
+      case 'mainnet':
+        return "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";
+      case 'maticmum':
+        return "0xA6FA4fB5f76172d178d61B04b0ecd319C5d1C0aa";
+      case 'matic':
+        return "0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619";
+      default:
+        throw new Error(`No WETH address available for selected network ${network}`);
+    }
+}
+
+module.exports = {
+    getEnvVariable,
+    getProvider,
+    getAccount,
+    getContract,
+    getFactoryContract,
+    getSeaPort,
+    getWETHAddress
+}
diff --git a/tasks/mint.js b/tasks/mint.js
new file mode 100644
index 0000000..a250f52
--- /dev/null
+++ b/tasks/mint.js
@@ -0,0 +1,40 @@
+const { task } = require("hardhat/config");
+const { getContract, getEnvVariable } = require("./helpers");
+const fetch = require("node-fetch");
+
+task("mint", "Mints from the NFT contract")
+    .addParam("address", "The address to receive a token")
+    .setAction(async function (taskArguments, hre) {
+        const contract = await getContract("NFT", hre);
+        const transactionResponse = await contract.mintTo(taskArguments.address, {
+            gasLimit: 500_000,
+            value: ethers.utils.parseEther(getEnvVariable("MINT_PRICE")),
+        });
+        console.log(`Transaction Hash: ${transactionResponse.hash}`);
+    });
+
+task("set-base-token-uri", "Sets the base token URI for the deployed smart contract")
+    .addParam("baseUrl", "The base of the tokenURI endpoint to set")
+    .setAction(async function (taskArguments, hre) {
+        const contract = await getContract("NFT", hre);
+        const transactionResponse = await contract.setBaseTokenURI(taskArguments.baseUrl, {
+            gasLimit: 500_000,
+        });
+        console.log(`Transaction Hash: ${transactionResponse.hash}`);
+    });
+
+
+task("token-uri", "Fetches the token metadata for the given token ID")
+    .addParam("tokenId", "The tokenID to fetch metadata for")
+    .setAction(async function (taskArguments, hre) {
+        const contract = await getContract("NFT", hre);
+        const response = await contract.tokenURI(taskArguments.tokenId, {
+            gasLimit: 500_000,
+        });
+
+        const metadata_url = response;
+        console.log(`Metadata URL: ${metadata_url}`);
+
+        const metadata = await fetch(metadata_url).then(res => res.json());
+        console.log(`Metadata fetch response: ${JSON.stringify(metadata, null, 2)}`);
+    });
diff --git a/tasks/sell.js b/tasks/sell.js
new file mode 100644
index 0000000..6cbd9ab
--- /dev/null
+++ b/tasks/sell.js
@@ -0,0 +1,100 @@
+const { task } = require("hardhat/config");
+const { getEnvVariable } = require("./helpers");
+
+const opensea = require("opensea-js");
+const { WyvernSchemaName } = require('opensea-js/lib/types');
+const OpenSeaPort = opensea.OpenSeaPort;
+
+const RPCSubprovider = require("web3-provider-engine/subproviders/rpc");
+const Web3ProviderEngine = require("web3-provider-engine");
+
+const PrivateKeyWalletSubprovider = require("@0x/subproviders")
+  .PrivateKeyWalletSubprovider;
+
+
+task("sell", "Create English action sale on OpenSea")
+    .addParam("tokenid", "NFT Token Id")
+    .addParam("startprice", "Starting auction price")
+    .setAction(async function (taskArguments, hre) {
+
+      const infuraRpcSubprovider = new RPCSubprovider({
+        rpcUrl: getEnvVariable("SELECTED_RPC_URL"),
+      });
+
+      const privateKeyWalletSubprovider = new PrivateKeyWalletSubprovider(getEnvVariable("ACCOUNT_PRIVATE_KEY"), 4);
+
+      const providerEngine = new Web3ProviderEngine();
+      providerEngine.addProvider(privateKeyWalletSubprovider);
+      providerEngine.addProvider(infuraRpcSubprovider);
+      providerEngine.start();
+
+      let wyvernNetName = undefined;
+      switch (getEnvVariable("SELECTED_NETWORK")) {
+        case 'rinkeby':
+          wyvernNetName = "rinkeby";
+          break;
+        case 'mainnet':
+          wyvernNetName = "mainnet";
+          break;
+        case 'maticmum':
+          wyvernNetName = "mumbai";
+          break;
+        case 'matic':
+          wyvernNetName = "polygon";
+          break;
+      }
+      const seaport = new OpenSeaPort(
+        providerEngine,
+          {
+            networkName: getEnvVariable("SELECTED_NETWORK"),
+            // apiKey: API_KEY,
+          },
+          (arg) => console.log(arg)
+        );
+
+        // const token = (await seaport.api.getPaymentTokens({ symbol: 'ETH'})).tokens[0.json];
+        // console.log(token)
+        const expirationTime = Math.round(Date.now() / 1000 + 60 * 60 * 24);
+
+        // Example: English auction.
+        console.log("English auctioning an item in DAI...");
+        let wethAddress = undefined;
+        switch (getEnvVariable("SELECTED_NETWORK")) {
+          case 'rinkeby':
+            wethAddress = "0xc778417e063141139fce010982780140aa0cd5ab";
+            break;
+          case 'mainnet':
+            wethAddress = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";
+            break;
+          case 'maticmum':
+            wethAddress = "0xA6FA4fB5f76172d178d61B04b0ecd319C5d1C0aa";
+            break;
+          case 'matic':
+            wethAddress = "0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619";
+            break;
+        }
+        console.log(`Account ${getEnvVariable("OWNER_ADDRESS")} selling ${getEnvVariable("NFT_CONTRACT_ADDRESS")} token #${taskArguments.tokenid} on ${getEnvVariable("SELECTED_NETWORK")} for ${taskArguments.startprice} payment ERC ${wethAddress}.`);
+        try {
+            const englishAuctionSellOrder = await seaport.createSellOrder({
+              asset: {
+                tokenId: taskArguments.tokenid,
+                tokenAddress: getEnvVariable("NFT_CONTRACT_ADDRESS"),
+                // schemaName: WyvernSchemaName.ERC721
+              },
+              startAmount: taskArguments.startprice,
+              expirationTime: expirationTime,
+              waitForHighestBid: true,
+              paymentTokenAddress: wethAddress,
+              accountAddress: getEnvVariable("OWNER_ADDRESS"),
+            });
+
+            console.log(
+              `Successfully created an English auction sell order! ${englishAuctionSellOrder.asset.openseaLink}\n`
+            );
+
+        } catch (error) {
+            console.error(
+                `Failed! ${error}\n`
+            );
+        }
+    });
diff --git a/tasks/sell2.js b/tasks/sell2.js
new file mode 100644
index 0000000..47d241c
--- /dev/null
+++ b/tasks/sell2.js
@@ -0,0 +1,63 @@
+const { task } = require("hardhat/config");
+const { getEnvVariable, getSeaPort, getWETHAddress } = require("./helpers");
+
+/*const opensea = require("opensea-js");
+const { WyvernSchemaName } = require('opensea-js/lib/types');
+const OpenSeaPort = opensea.OpenSeaPort;
+
+const RPCSubprovider = require("web3-provider-engine/subproviders/rpc");
+const Web3ProviderEngine = require("web3-provider-engine");
+
+const PrivateKeyWalletSubprovider = require("@0x/subproviders")
+  .PrivateKeyWalletSubprovider;
+*/
+
+task("sell2", "Create English action sale on OpenSea")
+    .addParam("tokenid", "NFT Token Id")
+    .addParam("startprice", "Starting auction price")
+    .setAction(async function (taskArguments, hre) {
+
+        const owner_addr = getEnvVariable("OWNER_ADDRESS");
+        const contract_addr = getEnvVariable("NFT_CONTRACT_ADDRESS");
+        const network = getEnvVariable("SELECTED_NETWORK");
+        const tokenId = taskArguments.tokenid;
+        const startPrice = taskArguments.startprice;
+        const expirationTime = Math.round(Date.now() / 1000 + 60 * 60 * 24);
+
+        const seaport = getSeaPort();
+
+        const wethAddress = getWETHAddress();
+
+        // Example: English auction.
+        console.log("English auctioning an item in DAI...");
+
+        console.log(`Account ${owner_addr} selling ${contract_addr} token #${tokenId} on ${network} for ${startPrice} payment ERC ${wethAddress}.`);
+
+        try {
+            console.log("A");
+            
+            const englishAuctionSellOrder = await seaport.createSellOrder({
+              asset: {
+                tokenId: tokenId,
+                tokenAddress: contract_addr,
+                // schemaName: WyvernSchemaName.ERC721
+              },
+              startAmount: startPrice,
+              expirationTime: expirationTime,
+              waitForHighestBid: true,
+              paymentTokenAddress: wethAddress,
+              accountAddress: owner_addr,
+            });
+
+            console.log(
+              `Successfully created an English auction sell order! ${englishAuctionSellOrder.asset.openseaLink}\n`
+            );
+
+        } catch (error) {
+            console.error(
+                `Failed! ${error}\n`
+            );
+            console.log("yo");
+        }
+        console.log("end");
+    });