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
// Developed by KG Technologies (https://kgtechnologies.io)

pragma solidity 0.8.12;

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


/**
 * @notice Represents opensea's proxy contract for delegated transactions
 */
contract OwnableDelegateProxy {}

/**
 * @notice Represents opensea's ProxyRegistry contract.
 * Used to find the opensea proxy contract of a user
 */
contract ProxyRegistry {
    mapping(address => OwnableDelegateProxy) public proxies;
}

/**
 * @notice Represents any Smart Contract in the MetaTriads ecosystem
 * that implements the IMetaTriadsTransferExtender interface.
 */
interface IMetaTriadsTransferExtender {
    function onMetaTriadsBeforeTransfer(address from, address to, uint256 startTokenId, uint256 quantity) external;
    function onMetaTriadsAfterTransfer(address from, address to, uint256 startTokenId, uint256 quantity) external;
}

/**
 * @title MetaTriadsERC721.
 *
 * @author KG Technologies (https://kgtechnologies.io).
 *
 * @notice This smart contract can be used to represent an ERC-721 asset on the Ethereum network.
 * It supports delayed reveals, gas-efficient batch minting {ERC721A}, freezing of metadata
 * and role-based access control.
 *
 * @dev The ERC-721A standard developed by chiru-labs, is used as a basis for this contract.
 *
 */
contract MetaTriadsERC721 is ERC721A, AccessControl, Ownable {
    using Strings for uint256;

    /**
     * @dev UTILITY ADDRESSES
     */
    address public metaTriadsTransferExtender;

    /** 
     * @dev NFT PLATFORM INTEGRATION 
     */
    address public openseaProxyRegistryAddress;

    /**
     * @dev METADATA
     */
    string public baseURIString = "https://metatriads.mypinata.cloud/ipfs/QmaEWgQm3HUtq3GALikVZntbJugx73bkbCqg67B7D4yAUL/";

    /** 
     * @dev FREEZE 
     */
    bool public isFrozen = false;

    /** 
     * @dev ROLES 
     */
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
    bytes32 public constant BURNER_ROLE = keccak256("BURNER_ROLE");

    /** 
     * @dev MODIFIERS 
     */
    modifier notFrozen() {
        require(!isFrozen, "CONTRACT FROZEN");
        _;
    }

    /** 
     * @dev EVENTS 
     */    
    event setBaseURIEvent(string indexed baseURI);
    event setOwnersExplicitEvent(uint256 indexed quantity);
    event ReceivedEther(address indexed sender, uint256 indexed amount);
    event WithdrawAllEvent(address indexed to, uint256 amount);
    event setMetaTriadsTransferExtenderEvent(address indexed extender);

    constructor(
        address _openseaProxyRegistryAddress
    ) ERC721A("MetaTriads", "MT") Ownable() {
        _setupRole(MINTER_ROLE, msg.sender);
        _setupRole(BURNER_ROLE, msg.sender);
        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
        openseaProxyRegistryAddress = _openseaProxyRegistryAddress;
    }

    /**
     * @dev UTILITY ADDONS
     */

    /**
     * @notice Future MetaTriads smart contracts
     * can hook into this function to perform actions
     * before Triads are transfered.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal override {
         super._beforeTokenTransfers(from, to, startTokenId, quantity);
         if (metaTriadsTransferExtender != address(0)) {
             IMetaTriadsTransferExtender( metaTriadsTransferExtender ).onMetaTriadsBeforeTransfer(from, to, startTokenId, quantity);
         }
    }

    /**
     * @notice Future MetaTriads smart contracts
     * can hook into this function to perform actions
     * before Triads are transfered.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal override {
        super._afterTokenTransfers(from, to, startTokenId, quantity);
        if (metaTriadsTransferExtender != address(0)) {
             IMetaTriadsTransferExtender( metaTriadsTransferExtender ).onMetaTriadsAfterTransfer(from, to, startTokenId, quantity);
         }
    }

    /**
     * @dev MINTING 
     */

    /**
     * @notice Function to mint NFTs to a specified address. Only 
     * accessible by accounts with a role of MINTER_ROLE
     *
     * @param amount The amount of NFTs to be minted
     * @param _to The address to which the NFTs will be minted to
     */
    function mintTo(uint256 amount, address _to) external onlyRole(MINTER_ROLE) {
        _safeMint(_to, amount);
    }

    /**
     * @dev BURNING
     */

    /**
     * @dev Burns `tokenId`. See {ERC721A-_burn}.
     *
     * @param tokenId. The token ID to burn
     */
    function burn(uint256 tokenId) external onlyRole(BURNER_ROLE)  {
        _burn(tokenId);
    }

    /** 
     * @dev VIEW ONLY
     */

    /**
     * @notice Function to get the URI for the metadata of a specific tokenId
     * @dev Return value is based on revealDate.
     *
     * @param tokenId. The tokenId which we want to know the URI of.
     * @return The URI of token tokenid
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        return string(abi.encodePacked(baseURIString, tokenId.toString(), ".json"));     
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControl, ERC721A) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            interfaceId == type(IERC721Enumerable).interfaceId ||
            interfaceId == type(IAccessControl).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @notice Override isApprovedForAll to whitelist user's OpenSea proxy account to enable gas-less listings.
     * @dev Used for integration with opensea's Wyvern exchange protocol.
     * See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator)
        override
        public
        view
        returns (bool)
    {
        // Create an instance of the ProxyRegistry contract from Opensea
        ProxyRegistry proxyRegistry = ProxyRegistry(openseaProxyRegistryAddress);
        // whitelist the ProxyContract of the owner of the NFT
        if (address(proxyRegistry.proxies(owner)) == operator) {
            return true;
        }

        if (openseaProxyRegistryAddress == operator) {
            return true;
        }

        return super.isApprovedForAll(owner, operator);
    }

    /**
     * @dev Override msgSender to allow for meta transactions on OpenSea.
     */
    function _msgSender()
        override
        internal
        view
        returns (address sender)
    {
        if (msg.sender == address(this)) {
            bytes memory array = msg.data;
            uint256 index = msg.data.length;
            assembly {
                // Load the 32 bytes word from memory with the address on the lower 20 bytes, and mask those.
                sender := and(
                    mload(add(array, index)),
                    0xffffffffffffffffffffffffffffffffffffffff
                )
            }
        } else {
            sender = payable(msg.sender);
        }
        return sender;
    }

    /**
     * @dev OWNER  ONLY
     */

    /**
     * @notice Allow for changing of metadata URL.
     * @dev Can be turned off by freezing the contract.
     *
     * @param _newBaseURI. The new base URL for the metadata of the collection.
     */
    function setBaseURI(string memory _newBaseURI) external onlyOwner notFrozen {
        baseURIString = _newBaseURI;
        emit setBaseURIEvent(_newBaseURI);
    }

    /**
     * @notice Function to set address of MetaTriads Transfer Extender
     *
     * @param _extender. The address of the MetaTriads Transfer Extender
     */
    function setMetaTriadsTransferExtender(address _extender) external onlyOwner {
        metaTriadsTransferExtender = _extender;
        emit setMetaTriadsTransferExtenderEvent(_extender);
    }

    /** 
     * @dev FINANCE 
     */

    /**
     * @notice Allows owner to withdraw funds generated from sale.
     *
     * @param _to. The address to send the funds to.
     */
    function withdrawAll(address _to) external onlyOwner {
        require(_to != address(0), "CANNOT WITHDRAW TO ZERO ADDRESS");

        uint256 contractBalance = address(this).balance;

        require(contractBalance > 0, "NO ETHER TO WITHDRAW");

        payable(_to).transfer(contractBalance);

        emit WithdrawAllEvent(_to, contractBalance);
    }

    /**
     * @dev Fallback function for receiving Ether
     */
    receive() external payable {
        emit ReceivedEther(msg.sender, msg.value);
    }
}

// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.4;

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

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

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
    using Address for address;
    using Strings for uint256;

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

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
    }

    // 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_;
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex times
        unchecked {
            return _currentIndex - _burnCounter;    
        }
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     * This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
     * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
     */
    function tokenByIndex(uint256 index) public view override returns (uint256) {
        uint256 numMintedSoFar = _currentIndex;
        uint256 tokenIdsIdx;

        // Counter overflow is impossible as the loop breaks when
        // uint256 i is equal to another uint256 numMintedSoFar.
        unchecked {
            for (uint256 i; i < numMintedSoFar; i++) {
                TokenOwnership memory ownership = _ownerships[i];
                if (!ownership.burned) {
                    if (tokenIdsIdx == index) {
                        return i;
                    }
                    tokenIdsIdx++;
                }
            }
        }
        revert TokenIndexOutOfBounds();
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     * This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
     * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) {
        if (index >= balanceOf(owner)) revert OwnerIndexOutOfBounds();
        uint256 numMintedSoFar = _currentIndex;
        uint256 tokenIdsIdx;
        address currOwnershipAddr;

        // Counter overflow is impossible as the loop breaks when
        // uint256 i is equal to another uint256 numMintedSoFar.
        unchecked {
            for (uint256 i; i < numMintedSoFar; i++) {
                TokenOwnership memory ownership = _ownerships[i];
                if (ownership.burned) {
                    continue;
                }
                if (ownership.addr != address(0)) {
                    currOwnershipAddr = ownership.addr;
                }
                if (currOwnershipAddr == owner) {
                    if (tokenIdsIdx == index) {
                        return i;
                    }
                    tokenIdsIdx++;
                }
            }
        }

        // Execution should never reach this point.
        revert();
    }

    /**
     * @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 ||
            interfaceId == type(IERC721Enumerable).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);
    }

    function _numberMinted(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert MintedQueryForZeroAddress();
        return uint256(_addressData[owner].numberMinted);
    }

    function _numberBurned(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert BurnedQueryForZeroAddress();
        return uint256(_addressData[owner].numberBurned);
    }

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

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

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

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

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

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

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

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

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

        _approve(to, tokenId, owner);
    }

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

        return _tokenApprovals[tokenId];
    }

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

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

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

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

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

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (!_checkOnERC721Received(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 tokenId < _currentIndex && !_ownerships[tokenId].burned;
    }

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

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

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

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

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

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

            uint256 updatedIndex = startTokenId;

            for (uint256 i; i < quantity; i++) {
                emit Transfer(address(0), to, updatedIndex);
                if (safe && !_checkOnERC721Received(address(0), to, updatedIndex, _data)) {
                    revert TransferToNonERC721ReceiverImplementer();
                }
                updatedIndex++;
            }

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

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

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

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

        _beforeTokenTransfers(from, to, tokenId, 1);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver(to).onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert TransferToNonERC721ReceiverImplementer();
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @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
// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

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

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

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

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

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

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

// 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 v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

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

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

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

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

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

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

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

pragma solidity ^0.8.0;

import "./IERC165.sol";

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

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

pragma solidity ^0.8.0;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_openseaProxyRegistryAddress","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":"OwnerIndexOutOfBounds","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TokenIndexOutOfBounds","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ReceivedEther","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","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":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawAllEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"baseURI","type":"string"}],"name":"setBaseURIEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"extender","type":"address"}],"name":"setMetaTriadsTransferExtenderEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"quantity","type":"uint256"}],"name":"setOwnersExplicitEvent","type":"event"},{"inputs":[],"name":"BURNER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":[],"name":"baseURIString","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","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":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"isFrozen","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"metaTriadsTransferExtender","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"mintTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"openseaProxyRegistryAddress","outputs":[{"internalType":"address","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":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_newBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_extender","type":"address"}],"name":"setMetaTriadsTransferExtender","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"}],"name":"withdrawAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c1

-----Decoded View---------------
Arg [0] : _openseaProxyRegistryAddress (address): 0xa5409ec958C83C3f309868babACA7c86DCB077c1

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c1