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/common/ERC2981.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";

import "./ERC721A.sol";
import "./interfaces/IOwnershipable.sol";
import "./ERC721ATokenUriDelegate.sol";
import "./ERC721AOperatorFilter.sol";

contract StudioUnoFrases is ERC721A, ERC2981, Pausable, Ownable, ERC721AOperatorFilter, ERC721ATokenUriDelegate {
    using SignatureChecker for address;
    using Strings for uint256;

    IOwnershipable public palabras;

    string public apiBaseURI;
    string public ipfsBaseURI;

    uint256 public lastIpfsTokenId;

    address public signer;

    address public trustedWallet_A;
    address public trustedWallet_B;

    uint256 public tokenId;

    mapping(uint256 => bool) public claimedPalabrasTokens;

    event FundsTransferred(address _wallet, uint256 _amount);
    event Minted(address _buyer, uint256 _paid, uint256 _tokenId, uint256 _artworkId);

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token.
     */
    constructor(
      address _trustedWallet_A,
      address _trustedWallet_B,        
      address _signer,
      address _palabrasContractAddress
    ) ERC721A("StudioUno Frases", "S1FRASES") {
        trustedWallet_A = _trustedWallet_A;
        trustedWallet_B = _trustedWallet_B;

        lastIpfsTokenId = 0;
        signer = _signer;
        palabras = IOwnershipable(_palabrasContractAddress);

        _pause();
    }

    function mint(address _receiver) internal {
      if(msg.value > 0) {
          payment();
      }

      _safeMint(_receiver, 1);
    }

    function publicMint(
        uint256[] memory _palabrasTokenIds,
        uint256 _artworkId,
        uint256 _mintPrice,
        bytes memory _signature
    ) external payable whenNotPaused {
        require(msg.value >= _mintPrice, "S1: value sent is lower");
        require(verifySignature(_palabrasTokenIds, _artworkId, _mintPrice, _signature), "S1: signature not valid");

        unchecked {
            for (uint i = 0; i < _palabrasTokenIds.length; i++) {
                uint256 _tokenId = _palabrasTokenIds[i];
                require(palabras.ownerOf(_tokenId) == msg.sender, "S1: Not owner");
                require(claimedPalabrasTokens[_tokenId] == false, "S1: Claimed token");
                claimedPalabrasTokens[_tokenId] = true;
            }
            tokenId++;
            mint(msg.sender);
            emit Minted(msg.sender, msg.value, tokenId, _artworkId);
        }
    }

    /// @dev Returns if signature is whitelisted to mint tokens.
    function verifySignature(
        uint256[] memory _palabrasTokenIds,
        uint256 _artworkId,
        uint256 _mintPrice,
        bytes memory _signature
    ) internal view returns (bool) {
        bytes32 result = keccak256(abi.encodePacked(_palabrasTokenIds, _artworkId, _mintPrice));
        bytes32 hash = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", result));
        return signer.isValidSignatureNow(hash, _signature);
    }

    /// @dev Split value paid for a token
    /// Emits two {FundsTransfered} events.
    function payment() internal {
        uint256 amount = (msg.value * 95) / 100;
        (bool success, ) = trustedWallet_A.call{value: amount}("");
        require(success, "S1: Transfer A failed");
        emit FundsTransferred(trustedWallet_A, amount);

        amount = msg.value - amount;
        (success, ) = trustedWallet_B.call{value: amount}("");
        require(success, "S1: Transfer B failed");
        emit FundsTransferred(trustedWallet_B, amount);
    }

    /// @dev Pause getGenesisToken(). Only DEFAULT_ADMIN_ROLE can call it.
    function pause() external onlyOwner {
        _pause();
    }

    /// @dev Unpause getGenesisToken(). Only DEFAULT_ADMIN_ROLE can call it.
    function unpause() external onlyOwner {
        _unpause();
    }

    /**
     * @dev Updates address of 'signer'
     * @param _signer  New address for 'signer'
     */
    function setSigner(address _signer) external onlyOwner {
        signer = _signer;
    }

    /**
     * @dev Updates address of 'trustedWallet_A'
     * @param _trustedWallet  New address for 'trustedWallet_A'
     */
    function setTrustedWallet_A(address _trustedWallet) external onlyOwner {
        trustedWallet_A = _trustedWallet;
    }

    /**
     * @dev Updates address of 'trustedWallet_B'
     * @param _trustedWallet  New address for 'trustedWallet_B'
     */
    function setTrustedWallet_B(address _trustedWallet) external onlyOwner {
        trustedWallet_B = _trustedWallet;
    }

    function setLastIpfsTokenId(uint256 _newLastIpfsTokenId) external onlyOwner {
        lastIpfsTokenId = _newLastIpfsTokenId;
    }

    function setApiBaseURI(string memory _newApiBaseURI) external onlyOwner {
        apiBaseURI = _newApiBaseURI;
    }

    function setIpfsBaseURI(string memory _newIpfsBaseURI) external onlyOwner {
        ipfsBaseURI = _newIpfsBaseURI;
    }

    function tokenURI(uint256 _tokenId) public view virtual override(ERC721ATokenUriDelegate, ERC721A) returns (string memory) {
        if (!_exists(_tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = "";
        if(_tokenId <= lastIpfsTokenId) {
            baseURI = ipfsBaseURI;
        } else {
            baseURI = apiBaseURI;
        }
        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _tokenId.toString())) : '';
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 _interfaceId) public view virtual override(ERC2981, ERC721A) returns (bool) {
        return
            _interfaceId == 0x7f5828d0 ||
            super.supportsInterface(_interfaceId);
    }

    // ERC2981 functions
    function setDefaultRoyalty(address _receiver, uint96 _feeNumerator) external onlyOwner {
        _setDefaultRoyalty(_receiver, _feeNumerator);
    }

    function deleteDefaultRoyalty() external onlyOwner {
        _deleteDefaultRoyalty();
    }

    function setTokenRoyalty(uint256 _tokenId, address _receiver, uint96 _feeNumerator) external onlyOwner {
        _setTokenRoyalty(_tokenId, _receiver, _feeNumerator);
    }

    function resetTokenRoyalty(uint256 _tokenId) external onlyOwner {
        _resetTokenRoyalty(_tokenId);
    }

    function _beforeTokenTransfers(
        address _from,
        address _to,
        uint256 _tokenId,
        uint256 _quantity
    )
        internal
        virtual
        override(ERC721A, ERC721AOperatorFilter)
    {
        super._beforeTokenTransfers(_from, _to, _tokenId, _quantity);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;

interface ITokenUriDelegate {
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

/**
 * @dev Interface of an ERC721ABurnable compliant contract.
 */
interface IOwnershipable {
    function ownerOf(uint256 tokenId) external view returns (address owner);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;

interface IOperatorFilter {
    function mayTransfer(address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "./ERC721A.sol";

import "./interfaces/ITokenUriDelegate.sol";

abstract contract ERC721ATokenUriDelegate is ERC721A, Ownable {
    ITokenUriDelegate private tokenUriDelegate_;

    function setTokenUriDelegate(ITokenUriDelegate delegate) public onlyOwner {
        tokenUriDelegate_ = delegate;
    }

    function tokenUriDelegate() public view returns (ITokenUriDelegate) {
        return tokenUriDelegate_;
    }

    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        if (!_exists(tokenId)) revert("ERC721A: invalid token ID");
        ITokenUriDelegate delegate = tokenUriDelegate_;
        if (address(delegate) == address(0)) return "";
        return delegate.tokenURI(tokenId);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "./ERC721A.sol";

import "./interfaces/IOperatorFilter.sol";

abstract contract ERC721AOperatorFilter is ERC721A, Ownable {
    IOperatorFilter private operatorFilter_;

    function setOperatorFilter(IOperatorFilter filter) public onlyOwner {
        operatorFilter_ = filter;
    }

    function operatorFilter() public view returns (IOperatorFilter) {
        return operatorFilter_;
    }

    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 tokenId,
        uint256 quantity
    ) internal virtual override(ERC721A) {
        if (
            from != address(0) &&
            to != address(0) &&
            !_mayTransfer(msg.sender, tokenId)
        ) {
            revert("ERC721AOperatorFilter: illegal operator");
        }
        super._beforeTokenTransfers(from, to, tokenId, quantity);
    }

    function _mayTransfer(address operator, uint256 tokenId)
        private
        view
        returns (bool)
    {
        IOperatorFilter filter = operatorFilter_;
        if (address(filter) == address(0)) return true;
        if (operator == ownerOf(tokenId)) return true;
        return filter.mayTransfer(msg.sender);
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import 'erc721a/contracts/IERC721A.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is Context, ERC165, IERC721A {
    using Address for address;
    using Strings for uint256;

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

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

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

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

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

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 1;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        _approve(to, tokenId, owner);
    }

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

        return _tokenApprovals[tokenId];
    }

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

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

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

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

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

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

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

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

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

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

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

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

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

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

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

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

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

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

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

            do {
                emit Transfer(address(0), to, updatedIndex++);
            } while (updatedIndex < end);

            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

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

        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();

        bool isApprovedOrOwner = (_msgSender() == from ||
            isApprovedForAll(from, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

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

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

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

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

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

    /**
     * @dev Equivalent to `_burn(tokenId, false)`.
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

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

        address from = prevOwnership.addr;

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSender() == from ||
                isApprovedForAll(from, _msgSender()) ||
                getApproved(tokenId) == _msgSender());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

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

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

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

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

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

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

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

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

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

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

// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';

/**
 * @dev Interface of an ERC721A compliant contract.
 */
interface IERC721A is IERC721, IERC721Metadata {
    /**
     * The caller must own the token or be an approved operator.
     */
    error ApprovalCallerNotOwnerNorApproved();

    /**
     * The token does not exist.
     */
    error ApprovalQueryForNonexistentToken();

    /**
     * The caller cannot approve to their own address.
     */
    error ApproveToCaller();

    /**
     * The caller cannot approve to the current owner.
     */
    error ApprovalToCurrentOwner();

    /**
     * Cannot query the balance for the zero address.
     */
    error BalanceQueryForZeroAddress();

    /**
     * Cannot mint to the zero address.
     */
    error MintToZeroAddress();

    /**
     * The quantity of tokens minted must be more than zero.
     */
    error MintZeroQuantity();

    /**
     * The token does not exist.
     */
    error OwnerQueryForNonexistentToken();

    /**
     * The caller must own the token or be an approved operator.
     */
    error TransferCallerNotOwnerNorApproved();

    /**
     * The token must be owned by `from`.
     */
    error TransferFromIncorrectOwner();

    /**
     * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
     */
    error TransferToNonERC721ReceiverImplementer();

    /**
     * Cannot transfer to the zero address.
     */
    error TransferToZeroAddress();

    /**
     * The token does not exist.
     */
    error URIQueryForNonexistentToken();

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

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

    /**
     * @dev Returns the total amount of tokens stored by the contract.
     * 
     * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
     */
    function totalSupply() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0-rc.2) (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);

            ///////////////////////////////////////////////
            // 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 * 8) < value ? 1 : 0);
        }
    }
}

// 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 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 (last updated v4.8.0-rc.2) (utils/cryptography/SignatureChecker.sol)

pragma solidity ^0.8.0;

import "./ECDSA.sol";
import "../Address.sol";
import "../../interfaces/IERC1271.sol";

/**
 * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA
 * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like
 * Argent and Gnosis Safe.
 *
 * _Available since v4.1._
 */
library SignatureChecker {
    /**
     * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the
     * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.
     *
     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus
     * change through time. It could return true at block N and false at block N+1 (or the opposite).
     */
    function isValidSignatureNow(
        address signer,
        bytes32 hash,
        bytes memory signature
    ) internal view returns (bool) {
        (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);
        if (error == ECDSA.RecoverError.NoError && recovered == signer) {
            return true;
        }

        (bool success, bytes memory result) = signer.staticcall(
            abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
        );
        return (success &&
            result.length == 32 &&
            abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0-rc.2) (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 (last updated v4.8.0-rc.2) (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 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 (last updated v4.8.0-rc.2) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return 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 (last updated v4.7.0) (token/common/ERC2981.sol)

pragma solidity ^0.8.0;

import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.
 *
 * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for
 * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.
 *
 * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the
 * fee is specified in basis points by default.
 *
 * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
 * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
 * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
 *
 * _Available since v4.5._
 */
abstract contract ERC2981 is IERC2981, ERC165 {
    struct RoyaltyInfo {
        address receiver;
        uint96 royaltyFraction;
    }

    RoyaltyInfo private _defaultRoyaltyInfo;
    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @inheritdoc IERC2981
     */
    function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {
        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];

        if (royalty.receiver == address(0)) {
            royalty = _defaultRoyaltyInfo;
        }

        uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();

        return (royalty.receiver, royaltyAmount);
    }

    /**
     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a
     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an
     * override.
     */
    function _feeDenominator() internal pure virtual returns (uint96) {
        return 10000;
    }

    /**
     * @dev Sets the royalty information that all ids in this contract will default to.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: invalid receiver");

        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Removes default royalty information.
     */
    function _deleteDefaultRoyalty() internal virtual {
        delete _defaultRoyaltyInfo;
    }

    /**
     * @dev Sets the royalty information for a specific token id, overriding the global default.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setTokenRoyalty(
        uint256 tokenId,
        address receiver,
        uint96 feeNumerator
    ) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: Invalid parameters");

        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Resets royalty information for the token id back to the global default.
     */
    function _resetTokenRoyalty(uint256 tokenId) internal virtual {
        delete _tokenRoyaltyInfo[tokenId];
    }
}

// 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 v4.6.0) (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 (last updated v4.8.0-rc.2) (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 v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC1271 standard signature validation method for
 * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
 *
 * _Available since v4.1._
 */
interface IERC1271 {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param hash      Hash of the data to be signed
     * @param signature Signature byte array associated with _data
     */
    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}

// 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);
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_trustedWallet_A","type":"address"},{"internalType":"address","name":"_trustedWallet_B","type":"address"},{"internalType":"address","name":"_signer","type":"address"},{"internalType":"address","name":"_palabrasContractAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_wallet","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"FundsTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"_paid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_artworkId","type":"uint256"}],"name":"Minted","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":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","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"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"apiBaseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"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":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"claimedPalabrasTokens","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"deleteDefaultRoyalty","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":"ipfsBaseURI","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":"lastIpfsTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operatorFilter","outputs":[{"internalType":"contract IOperatorFilter","name":"","type":"address"}],"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":"palabras","outputs":[{"internalType":"contract IOwnershipable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_palabrasTokenIds","type":"uint256[]"},{"internalType":"uint256","name":"_artworkId","type":"uint256"},{"internalType":"uint256","name":"_mintPrice","type":"uint256"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"publicMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"resetTokenRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"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":"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":"string","name":"_newApiBaseURI","type":"string"}],"name":"setApiBaseURI","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":"address","name":"_receiver","type":"address"},{"internalType":"uint96","name":"_feeNumerator","type":"uint96"}],"name":"setDefaultRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_newIpfsBaseURI","type":"string"}],"name":"setIpfsBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newLastIpfsTokenId","type":"uint256"}],"name":"setLastIpfsTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IOperatorFilter","name":"filter","type":"address"}],"name":"setOperatorFilter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint96","name":"_feeNumerator","type":"uint96"}],"name":"setTokenRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ITokenUriDelegate","name":"delegate","type":"address"}],"name":"setTokenUriDelegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_trustedWallet","type":"address"}],"name":"setTrustedWallet_A","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_trustedWallet","type":"address"}],"name":"setTrustedWallet_B","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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":[],"name":"tokenId","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":[],"name":"tokenUriDelegate","outputs":[{"internalType":"contract ITokenUriDelegate","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"trustedWallet_A","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"trustedWallet_B","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0000000000000000000000009c5e88334ca3d54c21464d40b88f1405b9f8dcaa0000000000000000000000007b74134152a65b94d957f67178bd91a8fd729f4000000000000000000000000045c270aa1ab991a879eda48d59c19aebc63f4da000000000000000000000000094f8b470f94218b25731acee65d8f9642447b144

-----Decoded View---------------
Arg [0] : _trustedWallet_A (address): 0x9c5e88334Ca3D54c21464D40b88F1405b9F8DcAa
Arg [1] : _trustedWallet_B (address): 0x7B74134152A65B94D957F67178bd91A8Fd729f40
Arg [2] : _signer (address): 0x45C270aa1aB991A879Eda48d59C19aEbc63F4da0
Arg [3] : _palabrasContractAddress (address): 0x94F8b470F94218b25731Acee65D8F9642447b144

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000009c5e88334ca3d54c21464d40b88f1405b9f8dcaa
Arg [1] : 0000000000000000000000007b74134152a65b94d957f67178bd91a8fd729f40
Arg [2] : 00000000000000000000000045c270aa1ab991a879eda48d59c19aebc63f4da0
Arg [3] : 00000000000000000000000094f8b470f94218b25731acee65d8f9642447b144