Contract 0x7a376C1F8eDF7BA7Eb94A7438a8313a17D830FF8 1

 
 
Txn Hash
Method
Block
From
To
Value
0x7297fbd8967c82f696ab213b805d5e4c7af5320d0ee20fb03f1e4f15958ff6bbSet Approval For...153053922022-08-09 2:40:401 day 20 hrs agoENS Name cristianoronaldo1985.eth IN  ProjectKevins: KEVIN Token0 Ether0.00083057 17.99461646
0x8c8b1548697b15ae470598f8d9a2b6d17790f4007aed361c5204b92f556e0b8cSet Approval For...152527472022-07-31 21:49:4710 days 1 hr ago0xa32c8e452509b4710e85f66e70ffad5031a3a767 IN  ProjectKevins: KEVIN Token0 Ether0.00039947 8.63908422
0xa426ae0565d8e957923c51d9b634b5ae7e6483799a2b7da9c8a1a26b5868b9c8Transfer From152335912022-07-28 22:14:2513 days 1 hr ago0x59795f019579005ad4b8a0894d9cf7cfaf8d7053 IN  ProjectKevins: KEVIN Token0 Ether0.00256834 38.69622092
0x46b0601dab226c38c8bbc7515fb1dba11b03fec1853c3e4df64aca6511c05d6bSet Approval For...152035112022-07-24 5:42:4417 days 17 hrs agoENS Name ratgeber.eth IN  ProjectKevins: KEVIN Token0 Ether0.00021852 8.98212209
0x8efc05bada4572c52cc74562e62f9ba293213762269c3b5c99e44efe3ab750c6Set Approval For...152015612022-07-23 22:08:4518 days 1 hr agoENS Name cristianoronaldo1985.eth IN  ProjectKevins: KEVIN Token0 Ether0.00060734 13.13434347
0x8572326ef988d837c1aff2cdb799c10dedfc5bb7dfec103a77e75807a7c3b633Set Approval For...151949642022-07-22 21:45:0119 days 1 hr ago0xc262757eef035b8d2479bc4114405d63149dc863 IN  ProjectKevins: KEVIN Token0 Ether0.00059263 12.83964639
0x2033e219fa3a00609855481162fad65490a5c03fd76f49e47bd6bf09a5b8b5e1Set Approval For...151817862022-07-20 21:00:2821 days 2 hrs ago0x3767b436f2b342423f20f35ddeba94f255438101 IN  ProjectKevins: KEVIN Token0 Ether0.00139374 30.19580279
0x2a26579babbbc8afa3872d3c5c5693dabd92a3187890b4df599e54a158dd953fSet Approval For...151553722022-07-16 18:43:2225 days 4 hrs ago0x883966e9421a34556864649677c5104ad40f13f6 IN  ProjectKevins: KEVIN Token0 Ether0.00103518 22.38674923
0x14ecf3324da7c02bc3503e1043c5930a8a64210db979ceea49fc2b0fe5b31901Set Approval For...150945882022-07-07 9:13:1634 days 14 hrs ago0x7c847b56cfe5d411ce30199af3357540d144e86a IN  ProjectKevins: KEVIN Token0 Ether0.00056518 12.24483966
0x056de4eb923f14c2d2ede317f4c32815a80099d0a9af462ef55200cf636d051bSet Approval For...150625592022-07-02 10:26:2439 days 12 hrs ago0xa32c8e452509b4710e85f66e70ffad5031a3a767 IN  ProjectKevins: KEVIN Token0 Ether0.00057714 12.5040588
0x21eff46d86cf9c6185b402f436c41b67fcec5a817ae6082193040c44e555195dTransfer From150622382022-07-02 9:12:3439 days 14 hrs ago0xd81326dd940fd7c947daf5053450d9d1553f406b IN  ProjectKevins: KEVIN Token0 Ether0.00125674 10.63652599
0xf54e8f2c168b6e4b36062e6f749506276fb08d5f5f20604008a06f90abc9512cTransfer From150496862022-06-30 9:34:1241 days 13 hrs ago0x949cb7219fa123510646624a9d9e72bf67ff11b0 IN  ProjectKevins: KEVIN Token0 Ether0.00569525 66.3396482
0xee91c8ea20423f28c57383bd7570a8752b1a71a6e04cc05d789fe7461bda9c67Set Approval For...150279622022-06-26 7:50:4245 days 15 hrs agoENS Name gmmoney.eth IN  ProjectKevins: KEVIN Token0 Ether0.00097903 21.21098749
0x74ce71563aae34345f28ede1d4b2cd361d066d612cbbcf15503644bcf656133eSet Approval For...150251272022-06-25 19:08:1346 days 4 hrs agoENS Name treygatsby.eth IN  ProjectKevins: KEVIN Token0 Ether0.00169266 36.60528168
0xf45c4da65d14e039b0b6c42206b8497d2af0dcc946fac21b28c089b1ddbe2549Set Approval For...150251262022-06-25 19:08:1246 days 4 hrs agoENS Name treygatsby.eth IN  ProjectKevins: KEVIN Token0 Ether0.001886 40.78642335
0xff1827dcc521bc54b3a2650c1dfea7b59588083cd0d9b54f19bb9a331e18f705Set Approval For...150251252022-06-25 19:08:1046 days 4 hrs agoENS Name treygatsby.eth IN  ProjectKevins: KEVIN Token0 Ether0.00190791 41.33539802
0x45cdc258380cb00343d18d7b15d3ae23f3827308bbb54a8c8490311a91da95bbSet Approval For...150172852022-06-24 7:59:3947 days 15 hrs ago0x694ade77fb83ef1dd1177b4f43edbb2faf54e44e IN  ProjectKevins: KEVIN Token0 Ether0.00122253 26.48639586
0xd4d88d8ba7ada7157f37bc500d03d9788ac34d7dc44442a7e5e030c6668b67b4Set Approval For...150166212022-06-24 5:02:4347 days 18 hrs agoENS Name jennifermcmanis.eth IN  ProjectKevins: KEVIN Token0 Ether0.0025353 54.92785492
0x9cc6e739fdc02fe5cad9eee1e070ea1996b7a003358e2d9f679963b82f742382Set Approval For...150133362022-06-23 14:11:4848 days 9 hrs ago0x6bb8e253921072125c0c3b28c696465fcafadc75 IN  ProjectKevins: KEVIN Token0 Ether0.00278238 60.28089363
0x961d0f6a2586e91591ed9e7f42af6a3cc53a89759aa73de34fc980bad86208bcSet Approval For...150129312022-06-23 12:23:0148 days 11 hrs ago0x6bb8e253921072125c0c3b28c696465fcafadc75 IN  ProjectKevins: KEVIN Token0 Ether0.00187941 40.64390886
0xb7b5032fe3faaed9686b823e55e461886a067f61b01f6d4dfe50a45b553f4e33Set Approval For...150127772022-06-23 11:43:1748 days 11 hrs ago0x1cf533243d314dbfc06f459d149fc465df793698 IN  ProjectKevins: KEVIN Token0 Ether0.00095454 20.6804447
0xf92e7694a121c14214a0c80ab81f99650012f3ecee04cbe47e1fb4a3864b057bSet Approval For...150101182022-06-22 23:36:2048 days 23 hrs ago0xaf35cf86cbcc788cd9c3eaa9e508cee72656b1f5 IN  ProjectKevins: KEVIN Token0 Ether0.00219962 47.655382
0xf9386d9a6c7443153a9a7915cff139a488c4fa01a3e4fa86fdf2c51f620147aeSafe Transfer Fr...150017442022-06-21 10:04:2450 days 13 hrs ago0x7101075a76296b60ec2d8571ae2aae301b2caa21 IN  ProjectKevins: KEVIN Token0 Ether0.00195858 28.35113684
0x1b56dca2ca996c8d94b525d32fdc6e223460edfb25b0c4dde4cc6610be277432Set Approval For...149925542022-06-19 19:50:1752 days 3 hrs ago0xa70c7eb9e25ab696888e2365b672fa739b592b2d IN  ProjectKevins: KEVIN Token0 Ether0.00053584 22.02507966
0xd32173b5c07cf793ec2718a56e5cd20ef214c28e8b24fb16cae9a4ad2c634887Set Approval For...149925202022-06-19 19:43:2452 days 3 hrs agoENS Name t-dubs.eth IN  ProjectKevins: KEVIN Token0 Ether0.0012769 27.66428226
[ Download CSV Export 

OVERVIEW

#SOLD OUTThe original Kevin PFP Project inspired by Pixelmon. No roadmap or promises - just good vibes, and Kevin.Project Kevins utilized a verified [ERC-721A](https://etherscan.io/address/0x7a376c1f8edf7ba7eb94a7438a8313a17d830ff8#code) Smart Contract.

Latest 2 internal transactions
Parent Txn Hash Block From To Value
0xd7514d631779cc3ff801ed1bc771410865a8976cf6e11786e298427be927afc5143369782022-03-07 2:11:55156 days 21 hrs ago ProjectKevins: KEVIN TokenProjectKevins: Deployer4.88 Ether
0x2f48e29d419cdd1f812ffa564a59eb7260b8e1e4c46406a5fb8360600821d9ec143197692022-03-04 9:56:03159 days 13 hrs ago ProjectKevins: KEVIN TokenProjectKevins: Deployer0.008 Ether
[ Download CSV Export 
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
ProjectKevins

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 14 : ProjectKevins.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.8.9 <0.9.0;

import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

contract ProjectKevins is ERC721A, Ownable, ReentrancyGuard {
    using Strings for uint256;

    bytes32 public merkleRoot;
    mapping(address => bool) public whitelistClaimed;

    string public uriPrefix = "";
    string public uriSuffix = ".json";
    string public hiddenMetadataUri;

    uint256 public cost;
    uint256 public maxSupply;
    uint256 public maxMintAmountPerTx;

    bool public paused = true;
    bool public whitelistMintEnabled = false;
    bool public revealed = false;

    constructor(
        string memory _tokenName,
        string memory _tokenSymbol,
        uint256 _cost,
        uint256 _maxSupply,
        uint256 _maxMintAmountPerTx,
        string memory _hiddenMetadataUri
    ) ERC721A(_tokenName, _tokenSymbol) {
        cost = _cost;
        maxSupply = _maxSupply;
        maxMintAmountPerTx = _maxMintAmountPerTx;
        setHiddenMetadataUri(_hiddenMetadataUri);
    }

    modifier mintCompliance(uint256 _mintAmount) {
        require(
            _mintAmount > 0 && _mintAmount <= maxMintAmountPerTx,
            "Invalid mint amount!"
        );
        require(
            totalSupply() + _mintAmount <= maxSupply,
            "Max supply exceeded!"
        );
        _;
    }

    modifier mintPriceCompliance(uint256 _mintAmount) {
        require(msg.value >= cost * _mintAmount, "Insufficient funds!");
        _;
    }

    function whitelistMint(uint256 _mintAmount, bytes32[] calldata _merkleProof)
        public
        payable
        mintCompliance(_mintAmount)
        mintPriceCompliance(_mintAmount)
    {
        // Verify whitelist requirements
        require(whitelistMintEnabled, "The whitelist sale is not enabled!");
        require(!whitelistClaimed[_msgSender()], "Address already claimed!");
        bytes32 leaf = keccak256(abi.encodePacked(_msgSender()));
        require(
            MerkleProof.verify(_merkleProof, merkleRoot, leaf),
            "Invalid proof!"
        );

        whitelistClaimed[_msgSender()] = true;
        _safeMint(_msgSender(), _mintAmount);
    }

    function mint(uint256 _mintAmount)
        public
        payable
        mintCompliance(_mintAmount)
        mintPriceCompliance(_mintAmount)
    {
        require(!paused, "The contract is paused!");

        _safeMint(_msgSender(), _mintAmount);
    }

    function mintForAddress(uint256 _mintAmount, address _receiver)
        public
        mintCompliance(_mintAmount)
        onlyOwner
    {
        _safeMint(_receiver, _mintAmount);
    }

    function walletOfOwner(address _owner)
        public
        view
        returns (uint256[] memory)
    {
        uint256 ownerTokenCount = balanceOf(_owner);
        uint256[] memory ownedTokenIds = new uint256[](ownerTokenCount);
        uint256 currentTokenId = _startTokenId();
        uint256 ownedTokenIndex = 0;

        while (
            ownedTokenIndex < ownerTokenCount && currentTokenId < maxSupply
        ) {
            address currentTokenOwner = ownerOf(currentTokenId);

            if (currentTokenOwner == _owner) {
                ownedTokenIds[ownedTokenIndex] = currentTokenId;

                ownedTokenIndex++;
            }

            currentTokenId++;
        }

        return ownedTokenIds;
    }

    function _startTokenId() internal view virtual override returns (uint256) {
        return 1;
    }

    function tokenURI(uint256 _tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(
            _exists(_tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );

        if (revealed == false) {
            return hiddenMetadataUri;
        }

        string memory currentBaseURI = _baseURI();
        return
            bytes(currentBaseURI).length > 0
                ? string(
                    abi.encodePacked(
                        currentBaseURI,
                        _tokenId.toString(),
                        uriSuffix
                    )
                )
                : "";
    }

    function setRevealed(bool _state) public onlyOwner {
        revealed = _state;
    }

    function setCost(uint256 _cost) public onlyOwner {
        cost = _cost;
    }

    function setMaxMintAmountPerTx(uint256 _maxMintAmountPerTx)
        public
        onlyOwner
    {
        maxMintAmountPerTx = _maxMintAmountPerTx;
    }

    function setHiddenMetadataUri(string memory _hiddenMetadataUri)
        public
        onlyOwner
    {
        hiddenMetadataUri = _hiddenMetadataUri;
    }

    function setUriPrefix(string memory _uriPrefix) public onlyOwner {
        uriPrefix = _uriPrefix;
    }

    function setUriSuffix(string memory _uriSuffix) public onlyOwner {
        uriSuffix = _uriSuffix;
    }

    function setPaused(bool _state) public onlyOwner {
        paused = _state;
    }

    function setMerkleRoot(bytes32 _merkleRoot) public onlyOwner {
        merkleRoot = _merkleRoot;
    }

    function setWhitelistMintEnabled(bool _state) public onlyOwner {
        whitelistMintEnabled = _state;
    }

    function withdraw() public onlyOwner nonReentrant {
        // This will transfer the remaining contract balance to the owner.
        // Do not remove this otherwise you will not be able to withdraw the funds.
        // =============================================================================
        (bool os, ) = payable(owner()).call{value: address(this).balance}("");
        require(os);
        // =============================================================================
    }

    function _baseURI() internal view virtual override returns (string memory) {
        return uriPrefix;
    }
}

File 2 of 14 : ERC721A.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintedQueryForZeroAddress();
error BurnedQueryForZeroAddress();
error AuxQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerIndexOutOfBounds();
error OwnerQueryForNonexistentToken();
error TokenIndexOutOfBounds();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Compiler will pack this into a single 256bit word.
    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
        // For miscellaneous variable(s) pertaining to the address
        // (e.g. number of whitelist mint slots used).
        // If there are multiple variables, please pack them into a uint64.
        uint64 aux;
    }

    // The tokenId of the next token to be minted.
    uint256 internal _currentIndex;

    // The number of tokens burned.
    uint256 internal _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
    mapping(uint256 => TokenOwnership) internal _ownerships;

    // Mapping owner address to address data
    mapping(address => AddressData) private _addressData;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
     */
    function totalSupply() public view returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex - _startTokenId() times
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view returns (uint256) {
        // Counter underflow is impossible as _currentIndex does not decrement,
        // and it is initialized to _startTokenId()
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert MintedQueryForZeroAddress();
        return uint256(_addressData[owner].numberMinted);
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert BurnedQueryForZeroAddress();
        return uint256(_addressData[owner].numberBurned);
    }

    /**
     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        if (owner == address(0)) revert AuxQueryForZeroAddress();
        return _addressData[owner].aux;
    }

    /**
     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal {
        if (owner == address(0)) revert AuxQueryForZeroAddress();
        _addressData[owner].aux = aux;
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr && curr < _currentIndex) {
                TokenOwnership memory ownership = _ownerships[curr];
                if (!ownership.burned) {
                    if (ownership.addr != address(0)) {
                        return ownership;
                    }
                    // Invariant:
                    // There will always be an ownership that has an address and is not burned
                    // before an ownership that does not have an address and is not burned.
                    // Hence, curr will not underflow.
                    while (true) {
                        curr--;
                        ownership = _ownerships[curr];
                        if (ownership.addr != address(0)) {
                            return ownership;
                        }
                    }
                }
            }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return ownershipOf(tokenId).addr;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = _baseURI();
        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : '';
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override {
        address owner = ERC721A.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
            revert ApprovalCallerNotOwnerNorApproved();
        }

        _approve(to, tokenId, owner);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public override {
        if (operator == _msgSender()) revert ApproveToCaller();

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {
            revert TransferToNonERC721ReceiverImplementer();
        }
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return _startTokenId() <= tokenId && tokenId < _currentIndex &&
            !_ownerships[tokenId].burned;
    }

    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        _mint(to, quantity, _data, true);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(
        address to,
        uint256 quantity,
        bytes memory _data,
        bool safe
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (safe && to.isContract()) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex != end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex != end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        TokenOwnership memory prevOwnership = ownershipOf(tokenId);

        bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
            isApprovedForAll(prevOwnership.addr, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId, prevOwnership.addr);

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[from].balance -= 1;
            _addressData[to].balance += 1;

            _ownerships[tokenId].addr = to;
            _ownerships[tokenId].startTimestamp = uint64(block.timestamp);

            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            if (_ownerships[nextTokenId].addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId < _currentIndex) {
                    _ownerships[nextTokenId].addr = prevOwnership.addr;
                    _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        TokenOwnership memory prevOwnership = ownershipOf(tokenId);

        _beforeTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId, prevOwnership.addr);

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[prevOwnership.addr].balance -= 1;
            _addressData[prevOwnership.addr].numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            _ownerships[tokenId].addr = prevOwnership.addr;
            _ownerships[tokenId].startTimestamp = uint64(block.timestamp);
            _ownerships[tokenId].burned = true;

            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            if (_ownerships[nextTokenId].addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId < _currentIndex) {
                    _ownerships[nextTokenId].addr = prevOwnership.addr;
                    _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(prevOwnership.addr, address(0), tokenId);
        _afterTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(
        address to,
        uint256 tokenId,
        address owner
    ) private {
        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
            return retval == IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}
}

File 3 of 14 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev 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.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 4 of 14 : MerkleProof.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];
            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = _efficientHash(computedHash, proofElement);
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = _efficientHash(proofElement, computedHash);
            }
        }
        return computedHash;
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

File 5 of 14 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

File 6 of 14 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

File 7 of 14 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 8 of 14 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

File 9 of 14 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

File 10 of 14 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 11 of 14 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

File 12 of 14 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

File 13 of 14 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 14 of 14 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"_tokenName","type":"string"},{"internalType":"string","name":"_tokenSymbol","type":"string"},{"internalType":"uint256","name":"_cost","type":"uint256"},{"internalType":"uint256","name":"_maxSupply","type":"uint256"},{"internalType":"uint256","name":"_maxMintAmountPerTx","type":"uint256"},{"internalType":"string","name":"_hiddenMetadataUri","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"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":[{"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"},{"inputs":[],"name":"cost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"hiddenMetadataUri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"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"},{"inputs":[],"name":"maxMintAmountPerTx","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintAmount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintAmount","type":"uint256"},{"internalType":"address","name":"_receiver","type":"address"}],"name":"mintForAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"revealed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"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":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_cost","type":"uint256"}],"name":"setCost","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_hiddenMetadataUri","type":"string"}],"name":"setHiddenMetadataUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxMintAmountPerTx","type":"uint256"}],"name":"setMaxMintAmountPerTx","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"name":"setMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"setPaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"setRevealed","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uriPrefix","type":"string"}],"name":"setUriPrefix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uriSuffix","type":"string"}],"name":"setUriSuffix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"setWhitelistMintEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"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":"uriPrefix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uriSuffix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"walletOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelistClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintAmount","type":"uint256"},{"internalType":"bytes32[]","name":"_merkleProof","type":"bytes32[]"}],"name":"whitelistMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"whitelistMintEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _tokenName (string): ProjectKevins
Arg [1] : _tokenSymbol (string): KEVIN
Arg [2] : _cost (uint256): 8000000000000000
Arg [3] : _maxSupply (uint256): 3000
Arg [4] : _maxMintAmountPerTx (uint256): 1
Arg [5] : _hiddenMetadataUri (string): ipfs://QmVFKaThk5vjq3KKGB9TQg1CGUBJYnwuKXiGvA1JJJMdyt/hidden.json

-----Encoded View---------------
14 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [2] : 000000000000000000000000000000000000000000000000001c6bf526340000
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000bb8
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [6] : 000000000000000000000000000000000000000000000000000000000000000d
Arg [7] : 50726f6a6563744b6576696e7300000000000000000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [9] : 4b4556494e000000000000000000000000000000000000000000000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000041
Arg [11] : 697066733a2f2f516d56464b6154686b35766a71334b4b474239545167314347
Arg [12] : 55424a596e77754b5869477641314a4a4a4d6479742f68696464656e2e6a736f
Arg [13] : 6e00000000000000000000000000000000000000000000000000000000000000


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.

A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.