Token

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@a16z/contracts/licenses/CantBeEvil.sol";

contract Soulbonds is ERC721, Ownable, CantBeEvil(LicenseVersion.EXCLUSIVE) {
    using Counters for Counters.Counter;
    using ECDSA for bytes32;

    address constant public METADATA_SIGNER = 0x1F89047445b44708bDbb4fA1620eDb4dB9249D57;
    address constant public TEAM_WALLET = 0x10f55205fAAAED53B24ACCc6294730897D005Acf;

    uint256 constant public GEN0_MINT_PRICE = 0.1559 ether;
    uint256 constant public GEN1_MINT_PRICE = 0.096 ether;

    uint256 constant public GEN0_REFERRAL_RATE = 60;
    uint256 constant public GEN1_REFERRAL_RATE = 40;

    uint256 public Gen0TotalSupply = 800;

    // Total number of tokens minted
    Counters.Counter private _tokenIdCounter;

    // A mapping to query tokenURI directly from owner address (through corresponding token ID)
    mapping(address => uint256) public tokenIDs;
    // Optional mapping for token URIs
    mapping(uint256 => string) private _tokenURIs;
    // To track already existing URIs
    mapping(string => bool) private _existingURIs;
    // A mapping storing the amount of referral rewards available for the given address
    mapping(address => uint256) public referralsClaim;

    string private _baseTokenURI;
    string private _baseTokenURISuffix;

    event Refer(address indexed referrer, address indexed referee);
    event Claim(address indexed claimer, uint256 value);

    constructor() ERC721("Soulbonds", "SOUL") {
        _setBaseTokenURI("https://gateway.ceramic.network/api/v0/streams/");
        _setBaseTokenURISuffix("/content");
        // Start the counter at 1 to avoid empty memory gas penalty
        _tokenIdCounter.increment();
    }

    function supportsInterface(bytes4 interfaceId) public view virtual override(CantBeEvil, ERC721) returns (bool) {
        return
        super.supportsInterface(interfaceId);
    }

    /**
     * @notice Implements Gen0 token minting 
     * @param metadataURI URI pointing to metadata - ceramic stream ID ONLY in our case
     * @param signature signature of metadataURI - to avoid minting outside of the dapp
     */
    function payToMintGen0(
        string memory metadataURI,
        bytes memory signature
    ) external payable {
        require(_tokenIdCounter.current() <= Gen0TotalSupply, "Limit of tokens has been reached");
        require(msg.value == GEN0_MINT_PRICE, "Wrong amount of ETH transferred");

        _payToMint(metadataURI, signature);

        payable(TEAM_WALLET).transfer(GEN0_MINT_PRICE);
    }

    /**
     * @notice Implements Gen1 token minting
     * @param refAddress referral address
     * @param metadataURI URI pointing to metadata - ceramic stream ID ONLY in our case
     * @param signature signature of metadataURI - to avoid minting outside of the dapp
     */
    function payToMintGen1(
        address refAddress,
        string memory metadataURI,
        bytes memory signature
    ) external payable {
        require(_tokenIdCounter.current() > Gen0TotalSupply, "Limit of Gen0 tokens has not been reached");
        require(balanceOf(refAddress) == 1, "Your referral does not own the token");
        require(msg.value == GEN1_MINT_PRICE, "Wrong amount of ETH transferred");

        _payToMint(metadataURI, signature);

        uint256 refRate = tokenIDs[refAddress] > Gen0TotalSupply ? GEN1_REFERRAL_RATE : GEN0_REFERRAL_RATE;
        referralsClaim[refAddress] += GEN1_MINT_PRICE * refRate / 100;
        payable(TEAM_WALLET).transfer(GEN1_MINT_PRICE * (100 - refRate) / 100);
        emit Refer(refAddress, msg.sender);
    }

    /**
     * @notice Implements returning complete metadata URI from owner address is tokenID is unknown
     * @param owner owner address
     */
    function tokenURIByOwner(address owner)
        external
        view
        returns (string memory)
    {
        require(tokenIDs[owner] > 0, "This address does not own the $SOUL token");
        return tokenURI(tokenIDs[owner]);
    }

    /**
     * @notice Returns total number of active tokens
     */
    function totalCount() public view returns (uint256) {
        return _tokenIdCounter.current() - 1;
    }

    /**
     * @notice Set the base token URI
     * @param uri string base URI to assign
     */
    function _setBaseTokenURI(string memory uri) public onlyOwner {
        _baseTokenURI = uri;
    }

    /**
     * @notice Sets the base token URI suffix
     * @param uriSuffix string base URI suffix to assign
     */
    function _setBaseTokenURISuffix(string memory uriSuffix) public onlyOwner {
        _baseTokenURISuffix = uriSuffix;
    }

    /**
     * @notice Shrink Gen0 Supply to speed up the start of the referral system
     * @param newSupply new Gen0 Supply
     */
    function shrinkGen0Supply(uint256 newSupply) public onlyOwner {
        require(totalCount() < Gen0TotalSupply, "Can't shrink after the start of Gen1 mints");
        require(Gen0TotalSupply > newSupply, "Only shrinking available");
        Gen0TotalSupply = newSupply;
    }

    /**
     * @notice Implements claiming referral rewards
     */
    function claimRef() public {
        require(balanceOf(msg.sender) == 1, "You should own an NFT to claim reward");
        uint256 reward = referralsClaim[msg.sender];
        require(reward > 0, "You should invite someone to have any reward");
        referralsClaim[msg.sender] = 0;
        payable(msg.sender).transfer(reward);
        emit Claim(msg.sender, reward);
    }

    /**
     * @notice Implements returning complete metadata URI
     * @param tokenId Token ID
     */
    function tokenURI(uint256 tokenId)
        public
        view
        override(ERC721)
        returns (string memory)
    {
        require(_exists(tokenId), "URI query for nonexistent token");
        return string(abi.encodePacked(_baseTokenURI, _tokenURIs[tokenId], _baseTokenURISuffix));
    }

    /**
     * @notice Reverts approval of external addresses
     */
    function approve(address , uint256) public pure override(ERC721) {
        revert("Cannot approve as the token is non-transferable");
    }

    /**
     * @notice Reverts approval of external operator addresses
     */
    function setApprovalForAll(address , bool) public pure override(ERC721) {
        revert("Cannot approve as the token is non-transferable");
    }


    /**
     * @notice Reverts transfers of tokens to all address
     */
    function _transfer(
        address,
        address,
        uint256
    ) internal pure override(ERC721)
    {
        revert("Token is non transferable");
    }

    /**
     * @notice Sets stream ID for a given token
     * @dev Reimplementation of OpenZeppelins ERC721URIStorage _setTokenURI method
     * @param tokenId token ID 
     * @param _tokenURI The URI to be set for token ID
     */
    function _setTokenURI(uint256 tokenId, string memory _tokenURI) private {
        require(_exists(tokenId),  "URI set of nonexistent token");
        _tokenURIs[tokenId] = _tokenURI;
    }

    /**
     * @notice Verifies that the provided signature was produced by the correct signer from the given message
     * @param metadata string containing the ceramic stream ID
     * @param signature backend-produced signature to verify the correctness of metadata
     */
    function _verify(
        string memory metadata,
        bytes memory signature
    ) private view returns (bool) {
        bytes32 ethSignedMessageHash = keccak256(abi.encodePacked(metadata, msg.sender)).toEthSignedMessageHash();
        (address recoveredSigner, ECDSA.RecoverError recoverError) = ethSignedMessageHash.tryRecover(signature);
        require(recoverError == ECDSA.RecoverError.NoError, "Error retrieving signature author");
        require(recoveredSigner == METADATA_SIGNER, "Metadata signed by untrusted signer");
        return true;
    }

    /**
     * @notice Implements token minting for both generations after generation specifics are completed 
     * @param metadataURI URI pointing to metadata - ceramic stream ID ONLY in our case
     * @param signature signature of metadataURI - to avoid minting outside of the dapp
     */
    function _payToMint(
        string memory metadataURI,
        bytes memory signature
    ) private {
        // Verify signature in the _verify function, revert from it if signature is wrong
        _verify(metadataURI, signature);

        // Making sure that no address can own two or more tokens
        require(balanceOf(msg.sender) == 0, "Same wallet cannot own two Souls");
        // Make sure such stream ID doesn't already exist
        require(_existingURIs[metadataURI] == false, "Stream ID already taken");

        uint256 newItemId = _tokenIdCounter.current();

        _tokenIdCounter.increment();

        _mint(msg.sender, newItemId);
        _setTokenURI(newItemId, metadataURI);
        _existingURIs[metadataURI] = true;

        tokenIDs[msg.sender] = newItemId;
    }
}

// SPDX-License-Identifier: MIT
// a16z Contracts v0.0.1 (CantBeEvil.sol)
pragma solidity ^0.8.13;

import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "./ICantBeEvil.sol";

enum LicenseVersion {
    PUBLIC,
    EXCLUSIVE,
    COMMERCIAL,
    COMMERCIAL_NO_HATE,
    PERSONAL,
    PERSONAL_NO_HATE
}

contract CantBeEvil is ERC165, ICantBeEvil {
    using Strings for uint;
    string internal constant _BASE_LICENSE_URI = "ar://zmc1WTspIhFyVY82bwfAIcIExLFH5lUcHHUN0wXg4W8/";
    LicenseVersion internal licenseVersion;
    constructor(LicenseVersion _licenseVersion) {
        licenseVersion = _licenseVersion;
    }

    function getLicenseURI() public view returns (string memory) {
        return string.concat(_BASE_LICENSE_URI, uint(licenseVersion).toString());
    }

    function getLicenseName() public view returns (string memory) {
        return _getLicenseVersionKeyByValue(licenseVersion);
    }

    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165) returns (bool) {
        return
            interfaceId == type(ICantBeEvil).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    function _getLicenseVersionKeyByValue(LicenseVersion _licenseVersion) internal pure returns (string memory) {
        require(uint8(_licenseVersion) <= 6);
        if (LicenseVersion.PUBLIC == _licenseVersion) return "PUBLIC";
        if (LicenseVersion.EXCLUSIVE == _licenseVersion) return "EXCLUSIVE";
        if (LicenseVersion.COMMERCIAL == _licenseVersion) return "COMMERCIAL";
        if (LicenseVersion.COMMERCIAL_NO_HATE == _licenseVersion) return "COMMERCIAL_NO_HATE";
        if (LicenseVersion.PERSONAL == _licenseVersion) return "PERSONAL";
        else return "PERSONAL_NO_HATE";
    }
}

// SPDX-License-Identifier: MIT
// a16z Contracts v0.0.1 (ICantBeEvil.sol)
pragma solidity ^0.8.13;

interface ICantBeEvil {
    function getLicenseURI() external view returns (string memory);
    function getLicenseName() external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)

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: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _ownerOf(tokenId);
        require(owner != address(0), "ERC721: invalid token ID");
        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) {
        _requireMinted(tokenId);

        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 overridden 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 token owner or approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        _requireMinted(tokenId);

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_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: caller is not token owner or 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: caller is not token owner or 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 the owner of the `tokenId`. Does NOT revert if token doesn't exist
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @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 _ownerOf(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) {
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == 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, 1);

        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
        require(!_exists(tokenId), "ERC721: token already minted");

        unchecked {
            // Will not overflow unless all 2**256 token ids are minted to the same owner.
            // Given that tokens are minted one by one, it is impossible in practice that
            // this ever happens. Might change if we allow batch minting.
            // The ERC fails to describe this case.
            _balances[to] += 1;
        }

        _owners[tokenId] = to;

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

        _afterTokenTransfer(address(0), to, tokenId, 1);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId, 1);

        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
        owner = ERC721.ownerOf(tokenId);

        // Clear approvals
        delete _tokenApprovals[tokenId];

        unchecked {
            // Cannot overflow, as that would require more tokens to be burned/transferred
            // out than the owner initially received through minting and transferring in.
            _balances[owner] -= 1;
        }
        delete _owners[tokenId];

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

        _afterTokenTransfer(owner, address(0), tokenId, 1);
    }

    /**
     * @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 from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId, 1);

        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");

        // Clear approvals from the previous owner
        delete _tokenApprovals[tokenId];

        unchecked {
            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
            // `from`'s balance is the number of token held, which is at least one before the current
            // transfer.
            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
            // all 2**256 token ids to be minted, which in practice is impossible.
            _balances[from] -= 1;
            _balances[to] += 1;
        }
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId, 1);
    }

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

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }

    /**
     * @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 {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
     * - When `from` is zero, the tokens will be minted for `to`.
     * - When `to` is zero, ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256, /* firstTokenId */
        uint256 batchSize
    ) internal virtual {
        if (batchSize > 1) {
            if (from != address(0)) {
                _balances[from] -= batchSize;
            }
            if (to != address(0)) {
                _balances[to] += batchSize;
            }
        }
    }

    /**
     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
     * - When `from` is zero, the tokens were minted for `to`.
     * - When `to` is zero, ``from``'s tokens were burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 firstTokenId,
        uint256 batchSize
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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`.
     *
     * 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;

    /**
     * @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 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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * 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 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 the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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 `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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://consensys.net/diligence/blog/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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// 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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @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] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// 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;
    }
}

// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

{
  "remappings": [
    "@a16z/=lib/a16z-contracts/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "a16z-contracts/=lib/a16z-contracts/",
    "contracts/=src/contracts/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 500
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"claimer","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Claim","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":"referrer","type":"address"},{"indexed":true,"internalType":"address","name":"referee","type":"address"}],"name":"Refer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"GEN0_MINT_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GEN0_REFERRAL_RATE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GEN1_MINT_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GEN1_REFERRAL_RATE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"Gen0TotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"METADATA_SIGNER","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TEAM_WALLET","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"uri","type":"string"}],"name":"_setBaseTokenURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"uriSuffix","type":"string"}],"name":"_setBaseTokenURISuffix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimRef","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLicenseName","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLicenseURI","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":"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":[{"internalType":"string","name":"metadataURI","type":"string"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"payToMintGen0","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"refAddress","type":"address"},{"internalType":"string","name":"metadataURI","type":"string"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"payToMintGen1","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"referralsClaim","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"","type":"address"},{"internalType":"bool","name":"","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"newSupply","type":"uint256"}],"name":"shrinkGen0Supply","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":"address","name":"","type":"address"}],"name":"tokenIDs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"owner","type":"address"}],"name":"tokenURIByOwner","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalCount","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"}]

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