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0xe77c86eCFb9076d9BeDa4708Be53c540F58Cf618
 

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Safe Transfer Fr...199165622024-05-21 6:41:47146 days ago1716273707IN
0xe77c86eC...0F58Cf618
0 ETH0.000576719.54816727
Set Approval For...192579182024-02-18 23:24:47238 days ago1708298687IN
0xe77c86eC...0F58Cf618
0 ETH0.0011193524.17973694
Set Approval For...172549602023-05-14 1:43:23519 days ago1684028603IN
0xe77c86eC...0F58Cf618
0 ETH0.0024318552.53181562
Safe Transfer Fr...166235382023-02-14 0:52:59608 days ago1676335979IN
0xe77c86eC...0F58Cf618
0 ETH0.0006862815.50932884
Safe Transfer Fr...166235362023-02-14 0:52:35608 days ago1676335955IN
0xe77c86eC...0F58Cf618
0 ETH0.0010271515.52768369
Mint164964232023-01-27 6:39:47626 days ago1674801587IN
0xe77c86eC...0F58Cf618
0.08 ETH0.0020106317.26529798
Transfer From158762922022-11-01 16:12:47713 days ago1667319167IN
0xe77c86eC...0F58Cf618
0 ETH0.000985324.2
Transfer From158762912022-11-01 16:12:35713 days ago1667319155IN
0xe77c86eC...0F58Cf618
0 ETH0.0011014624.2
Transfer From158762472022-11-01 16:03:47713 days ago1667318627IN
0xe77c86eC...0F58Cf618
0 ETH0.0012540230.8
Transfer From158762462022-11-01 16:03:35713 days ago1667318615IN
0xe77c86eC...0F58Cf618
0 ETH0.0017907828.6
Transfer From156584382022-10-02 5:42:23743 days ago1664689343IN
0xe77c86eC...0F58Cf618
0 ETH0.000289075
Set Approval For...155783122022-09-21 0:38:47754 days ago1663720727IN
0xe77c86eC...0F58Cf618
0 ETH0.000354147.65
Set Approval For...155729402022-09-20 6:34:59755 days ago1663655699IN
0xe77c86eC...0F58Cf618
0 ETH0.000416639
Mint155697692022-09-19 19:55:11755 days ago1663617311IN
0xe77c86eC...0F58Cf618
0.08 ETH0.0024275818.17668939
Mint155651822022-09-19 4:27:47756 days ago1663561667IN
0xe77c86eC...0F58Cf618
0.08 ETH0.001059499.09882996
Mint155651772022-09-19 4:26:47756 days ago1663561607IN
0xe77c86eC...0F58Cf618
0.08 ETH0.001229399.20601113
Mint155621732022-09-18 18:19:47756 days ago1663525187IN
0xe77c86eC...0F58Cf618
0.08 ETH0.0019155714.34297512
Safe Transfer Fr...155518442022-09-17 7:33:11758 days ago1663399991IN
0xe77c86eC...0F58Cf618
0 ETH0.000261664
Safe Transfer Fr...155454392022-09-16 9:58:47759 days ago1663322327IN
0xe77c86eC...0F58Cf618
0 ETH0.000520197.95195334
Safe Transfer Fr...155076532022-09-10 7:53:45765 days ago1662796425IN
0xe77c86eC...0F58Cf618
0 ETH0.0007441311.37522973
Set Approval For...153285882022-08-12 18:33:37793 days ago1660329217IN
0xe77c86eC...0F58Cf618
0 ETH0.0007202515.53043024
Set Approval For...153257622022-08-12 7:42:38794 days ago1660290158IN
0xe77c86eC...0F58Cf618
0 ETH0.0004696810.12751138
Transfer From153036052022-08-08 20:05:03797 days ago1659989103IN
0xe77c86eC...0F58Cf618
0 ETH0.0015039626.01342935
Set Approval For...152614442022-08-02 6:21:02804 days ago1659421262IN
0xe77c86eC...0F58Cf618
0 ETH0.000294066.35222878
Set Approval For...151639812022-07-18 2:40:24819 days ago1658112024IN
0xe77c86eC...0F58Cf618
0 ETH0.0004648319
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164964232023-01-27 6:39:47626 days ago1674801587
0xe77c86eC...0F58Cf618
0.048 ETH
164964232023-01-27 6:39:47626 days ago1674801587
0xe77c86eC...0F58Cf618
0.024 ETH
164964232023-01-27 6:39:47626 days ago1674801587
0xe77c86eC...0F58Cf618
0.008 ETH
155697692022-09-19 19:55:11755 days ago1663617311
0xe77c86eC...0F58Cf618
0.048 ETH
155697692022-09-19 19:55:11755 days ago1663617311
0xe77c86eC...0F58Cf618
0.024 ETH
155697692022-09-19 19:55:11755 days ago1663617311
0xe77c86eC...0F58Cf618
0.008 ETH
155651822022-09-19 4:27:47756 days ago1663561667
0xe77c86eC...0F58Cf618
0.048 ETH
155651822022-09-19 4:27:47756 days ago1663561667
0xe77c86eC...0F58Cf618
0.024 ETH
155651822022-09-19 4:27:47756 days ago1663561667
0xe77c86eC...0F58Cf618
0.008 ETH
155651772022-09-19 4:26:47756 days ago1663561607
0xe77c86eC...0F58Cf618
0.048 ETH
155651772022-09-19 4:26:47756 days ago1663561607
0xe77c86eC...0F58Cf618
0.024 ETH
155651772022-09-19 4:26:47756 days ago1663561607
0xe77c86eC...0F58Cf618
0.008 ETH
155621732022-09-18 18:19:47756 days ago1663525187
0xe77c86eC...0F58Cf618
0.048 ETH
155621732022-09-18 18:19:47756 days ago1663525187
0xe77c86eC...0F58Cf618
0.024 ETH
155621732022-09-18 18:19:47756 days ago1663525187
0xe77c86eC...0F58Cf618
0.008 ETH
151191802022-07-11 4:22:48826 days ago1657513368
0xe77c86eC...0F58Cf618
0.048 ETH
151191802022-07-11 4:22:48826 days ago1657513368
0xe77c86eC...0F58Cf618
0.024 ETH
151191802022-07-11 4:22:48826 days ago1657513368
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0.008 ETH
149906972022-06-19 12:07:23848 days ago1655640443
0xe77c86eC...0F58Cf618
0.048 ETH
149906972022-06-19 12:07:23848 days ago1655640443
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0.024 ETH
149906972022-06-19 12:07:23848 days ago1655640443
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0.008 ETH
149336992022-06-09 17:05:24858 days ago1654794324
0xe77c86eC...0F58Cf618
0.048 ETH
149336992022-06-09 17:05:24858 days ago1654794324
0xe77c86eC...0F58Cf618
0.024 ETH
149336992022-06-09 17:05:24858 days ago1654794324
0xe77c86eC...0F58Cf618
0.008 ETH
148589322022-05-28 7:16:21870 days ago1653722181
0xe77c86eC...0F58Cf618
0.048 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
AmoebaXStarl

Compiler Version
v0.8.1+commit.df193b15

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 12 : StarlAmoebas.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/utils/Strings.sol";


/// @title AmoebaXStarl
/// @notice A contract for amoebas in the STARL ecosystem
contract AmoebaXStarl is Ownable, ERC721 {
    using   SafeMath for uint256;
    using   Strings for uint256;

    event ArtistAdded(uint256 artistId, uint256 supply, uint256 startId, uint256 launchTime, address feeRecipient, string baseUrl, string extension);
    event FeePercentUpdated(uint256 devFeePercent, uint256 artistFeePercent);

    uint256 cost = 0.08 ether;

    /// @dev Satellite Info for each Sate NFT
    struct ArtistInfo {
        uint256 supply;
        uint256 minted;
        uint256 startId;
        uint256 launchTime;
        address feeRecipient;
        string  baseUrl;
        string  extension;
    }

    uint256 public devFeePercent = 10;
    uint256 public artistFeePercent = 30;

    address public devFeeRecipient;
    address public amoebaRecipient;

    uint256 artistIdPointer;
    mapping(uint256 => ArtistInfo) public artists;

    constructor (
        address _devFeeRecipient,
        address _amoebaRecipient,
        uint256[] memory supplies,
        uint256 launchTime,
        address[] memory feeRecipients,
        string[] memory baseUrls,
        string memory extension
    ) ERC721("Amoeba x STARL", "AMxST") {
        require(baseUrls.length == supplies.length, "Incorrect length of supplies");

        devFeeRecipient = _devFeeRecipient;
        amoebaRecipient = _amoebaRecipient;

        for(uint256 i=0; i<supplies.length; i++) {
            _addArtist(baseUrls[i], supplies[i], launchTime, feeRecipients[i], extension);
        }
    }

    function updateFeePercent(uint256 _devFeePercent, uint256 _artistFeePercent) public onlyOwner {
        require(_devFeePercent > 0 && _devFeePercent <= 50, "Invalid devFeePercen");
        require(_artistFeePercent > 0 && _artistFeePercent <= 50, "Invalid artistFeePercent");
        devFeePercent = _devFeePercent;
        artistFeePercent = _artistFeePercent;
        emit FeePercentUpdated(devFeePercent, artistFeePercent);
    }

    function addArtist(uint256 supply, uint256 launchTime, address feeRecipient, string memory baseUrl, string memory extension) public onlyOwner {
        _addArtist(baseUrl, supply, launchTime, feeRecipient, extension);
    }

    function batchAddArtists(uint256[] calldata supplies, uint256 launchTime, address[] calldata feeRecipients, string[] calldata baseUrls, string[] calldata extensions) public onlyOwner {
        require(baseUrls.length == supplies.length, "Incorrect length of supplies");
        
        for(uint256 i=0; i<supplies.length; i++) {
            _addArtist(baseUrls[i], supplies[i], launchTime, feeRecipients[i], extensions.length > i ? extensions[i] : extensions[0]);
        }
    }

    function _addArtist(string memory baseUrl, uint256 supply, uint256 launchTime, address feeRecipient, string memory extension) internal {
        require(launchTime > block.timestamp, "Invalid launch time");
        require(supply > 0, "Invalid supply of artist");
        uint256 startId = 1;
        if (artistIdPointer > 0) {
            startId = artists[artistIdPointer].startId + artists[artistIdPointer].supply;
        }
        artistIdPointer = artistIdPointer + 1;
        artists[artistIdPointer] = ArtistInfo(supply, 0, startId, launchTime, feeRecipient, baseUrl, extension);

        emit ArtistAdded(artistIdPointer, supply, startId, launchTime, feeRecipient, baseUrl, extension);
    }

    function mint(address _to, uint256 artistId) public payable {
        require(artistId <= artistIdPointer, "Invalid artist id");
        require(block.timestamp >= artists[artistId].launchTime, "Mint for this artist not started");

        ArtistInfo storage artist = artists[artistId];
        require(artist.minted < artist.supply, "All nfts are minted for this artistId");

        if (msg.sender != owner()) {
            require(msg.value >= cost);
            uint256 devFeeAmount = msg.value.mul(devFeePercent).div(100);
            (bool devFeeTransferSuccess,) = devFeeRecipient.call{value : devFeeAmount}("");
            require(devFeeTransferSuccess, "devFeeTransfer failed");

            uint256 artistFeeAmount = msg.value.mul(artistFeePercent).div(100);
            (bool artistFeeTransferSuccess,) = artist.feeRecipient.call{value : artistFeeAmount}("");
            require(artistFeeTransferSuccess, "artistFeeTransferSuccess failed");

            (bool amoebaFeeTransferSuccess,) = amoebaRecipient.call{value : msg.value.sub(devFeeAmount).sub(artistFeeAmount)}("");
            require(amoebaFeeTransferSuccess, "amoebaFeeTransferSuccess failed");
        }
        
        _safeMint(_to, artists[artistId].startId.add(artists[artistId].minted));
        artist.minted = artist.minted.add(1);
    }

    function _getArtistId(uint256 tokenId) internal view returns (uint256) {
        for(uint256 id=artistIdPointer; id>0; id--) {
            if (tokenId >= artists[id].startId) {
                return id;
            }
        }
        return 0;
    }

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

        uint256 artistId = _getArtistId(tokenId);
        require(artistId>0, "Invalid artist id");
        uint256 index = tokenId.sub(artists[artistId].startId).add(1);
        return string(
            abi.encodePacked(
                abi.encodePacked(artists[artistId].baseUrl, index.toString()), 
                artists[artistId].extension
            )
        );
    }

    function withdraw() public onlyOwner {
        require(payable(msg.sender).send(address(this).balance));
    }    
}

File 2 of 12 : ERC721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // 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;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @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 virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @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) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        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 virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        require(operator != _msgSender(), "ERC721: approve to caller");

        _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 {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _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 {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @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.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @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`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @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 {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * 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
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

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

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a 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 _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * 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, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

File 3 of 12 : Ownable.sol
// SPDX-License-Identifier: MIT

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() {
        _setOwner(_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 {
        _setOwner(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");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 4 of 12 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

File 5 of 12 : Strings.sol
// SPDX-License-Identifier: MIT

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 6 of 12 : IERC721.sol
// SPDX-License-Identifier: MIT

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 12 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT

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 12 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT

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 12 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 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 10 of 12 : Context.sol
// SPDX-License-Identifier: MIT

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 11 of 12 : ERC165.sol
// SPDX-License-Identifier: MIT

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 12 of 12 : IERC165.sol
// SPDX-License-Identifier: MIT

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"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_devFeeRecipient","type":"address"},{"internalType":"address","name":"_amoebaRecipient","type":"address"},{"internalType":"uint256[]","name":"supplies","type":"uint256[]"},{"internalType":"uint256","name":"launchTime","type":"uint256"},{"internalType":"address[]","name":"feeRecipients","type":"address[]"},{"internalType":"string[]","name":"baseUrls","type":"string[]"},{"internalType":"string","name":"extension","type":"string"}],"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":false,"internalType":"uint256","name":"artistId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"supply","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"startId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"launchTime","type":"uint256"},{"indexed":false,"internalType":"address","name":"feeRecipient","type":"address"},{"indexed":false,"internalType":"string","name":"baseUrl","type":"string"},{"indexed":false,"internalType":"string","name":"extension","type":"string"}],"name":"ArtistAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"devFeePercent","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"artistFeePercent","type":"uint256"}],"name":"FeePercentUpdated","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":"uint256","name":"supply","type":"uint256"},{"internalType":"uint256","name":"launchTime","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"},{"internalType":"string","name":"baseUrl","type":"string"},{"internalType":"string","name":"extension","type":"string"}],"name":"addArtist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"amoebaRecipient","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"artistFeePercent","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"artists","outputs":[{"internalType":"uint256","name":"supply","type":"uint256"},{"internalType":"uint256","name":"minted","type":"uint256"},{"internalType":"uint256","name":"startId","type":"uint256"},{"internalType":"uint256","name":"launchTime","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"},{"internalType":"string","name":"baseUrl","type":"string"},{"internalType":"string","name":"extension","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"supplies","type":"uint256[]"},{"internalType":"uint256","name":"launchTime","type":"uint256"},{"internalType":"address[]","name":"feeRecipients","type":"address[]"},{"internalType":"string[]","name":"baseUrls","type":"string[]"},{"internalType":"string[]","name":"extensions","type":"string[]"}],"name":"batchAddArtists","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"devFeePercent","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"devFeeRecipient","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"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":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"artistId","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","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":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","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":"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":[{"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":[{"internalType":"uint256","name":"_devFeePercent","type":"uint256"},{"internalType":"uint256","name":"_artistFeePercent","type":"uint256"}],"name":"updateFeePercent","outputs":[],"stateMutability":"nonpayable","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] : _devFeeRecipient (address): 0x3797a3823213A07B3B65220E702aD75f062e7E22
Arg [1] : _amoebaRecipient (address): 0x6faFb702f565839b736F741C586bAc267B28a76D
Arg [2] : supplies (uint256[]): 100,100
Arg [3] : launchTime (uint256): 1650697200
Arg [4] : feeRecipients (address[]): 0xf1fCF3f7Dd5fBf10862CBFD3fB7bDd811637a817,0x08B28Ad48058f663A39fe4720c211F79CED987a3
Arg [5] : baseUrls (string[]): https://starlink.mypinata.cloud/ipfs/QmaQ1wUqpBCLRspxgdQ2G32wVheQygLWYnNDJRbHPZeJGD/,https://starlink.mypinata.cloud/ipfs/QmewmGmjT7YNDbpa7cAuobFSeWzoz5hWrS1RWF3utA9qWY/
Arg [6] : extension (string): .json

-----Encoded View---------------
26 Constructor Arguments found :
Arg [0] : 0000000000000000000000003797a3823213a07b3b65220e702ad75f062e7e22
Arg [1] : 0000000000000000000000006fafb702f565839b736f741c586bac267b28a76d
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [3] : 000000000000000000000000000000000000000000000000000000006263a3f0
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [5] : 00000000000000000000000000000000000000000000000000000000000001a0
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000300
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000064
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000064
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [11] : 000000000000000000000000f1fcf3f7dd5fbf10862cbfd3fb7bdd811637a817
Arg [12] : 00000000000000000000000008b28ad48058f663a39fe4720c211f79ced987a3
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [14] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [15] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [16] : 0000000000000000000000000000000000000000000000000000000000000054
Arg [17] : 68747470733a2f2f737461726c696e6b2e6d7970696e6174612e636c6f75642f
Arg [18] : 697066732f516d6151317755717042434c527370786764513247333277566865
Arg [19] : 5179674c57596e4e444a526248505a654a47442f000000000000000000000000
Arg [20] : 0000000000000000000000000000000000000000000000000000000000000054
Arg [21] : 68747470733a2f2f737461726c696e6b2e6d7970696e6174612e636c6f75642f
Arg [22] : 697066732f516d65776d476d6a5437594e44627061376341756f62465365577a
Arg [23] : 6f7a35685772533152574633757441397157592f000000000000000000000000
Arg [24] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [25] : 2e6a736f6e000000000000000000000000000000000000000000000000000000


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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.