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 0.8.7;

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

contract Web3Wizards is ERC721A, Ownable, ReentrancyGuard, Pausable {
    event SaleStateChange(uint256 _newState);

    using Strings for uint256;

    bytes32 public whitelistMerkleRoot;

    uint256 public maxTokens = 1000;
    uint256 public maxTokensPerWallet = 2;

    string private baseURI;

    enum SaleState {
        NOT_ACTIVE,
        PRESALE,
        PUBLIC_SALE
    }

    SaleState public saleState = SaleState.NOT_ACTIVE;

    mapping(address => uint256) mintedPerWallet;

    constructor(string memory _ipfsCID) ERC721A("Web3 Wizards Alpha Pass", "web3wiz") {
        baseURI = string(abi.encodePacked("ipfs://", _ipfsCID, "/"));
    }

    modifier isValidMerkleProof(bytes32[] calldata merkleProof, bytes32 root) {
        require(
            MerkleProof.verify(
                merkleProof,
                root,
                keccak256(abi.encodePacked(msg.sender))
            ),
            "Address does not exist in list"
        );
        _;
    }

    modifier canMint(uint256 _amount) {
        require(
            maxTokens >= _amount + totalSupply(),
            "Not enough tokens left!"
        );
        require(
            _amount > 0 &&
                _amount + mintedPerWallet[msg.sender] <= maxTokensPerWallet,
            "Too many tokens per wallet!"
        );
        _;
    }

    modifier whenSaleNotActive() {
        require(saleState == SaleState.NOT_ACTIVE, "Sale already started!");
        _;
    }

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

    function startPresale() external onlyOwner whenSaleNotActive {
        saleState = SaleState.PRESALE;
        emit SaleStateChange(uint256(SaleState.PRESALE));
    }

    function startPublicSale() external onlyOwner whenSaleNotActive {
        saleState = SaleState.PUBLIC_SALE;
        emit SaleStateChange(uint256(SaleState.PUBLIC_SALE));
    }

    function endPresale() external onlyOwner {
        require(saleState == SaleState.PRESALE, "Presale is not active!");
        saleState = SaleState.NOT_ACTIVE;
        emit SaleStateChange(uint256(SaleState.NOT_ACTIVE));
    }

    function setMaxTokensPerWallet(uint256 _amount) external onlyOwner {
        maxTokensPerWallet = _amount;
    }

    function setWhitelistMerkleRoot(bytes32 _merkleRoot) external onlyOwner {
        whitelistMerkleRoot = _merkleRoot;
    }

    function pause() external onlyOwner whenNotPaused {
        _pause();
    }

    function unpause() external onlyOwner whenPaused {
        _unpause();
    }

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

    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(_exists(tokenId), "URI query for nonexistent token");
        return
            string(abi.encodePacked(_baseURI(), tokenId.toString(), ".json"));
    }

    function whitelistMint(uint256 _amount, bytes32[] calldata _merkleProof)
        external
        nonReentrant
        canMint(_amount)
        isValidMerkleProof(_merkleProof, whitelistMerkleRoot)
    {
        require(saleState == SaleState.PRESALE, "Presale not active!");
        _safeMint(msg.sender, _amount);
        mintedPerWallet[msg.sender] += _amount;
    }

    function mint(uint256 _amount) external nonReentrant canMint(_amount) {
        require(saleState == SaleState.PUBLIC_SALE, "Public sale not active!");
        _safeMint(msg.sender, _amount);
        mintedPerWallet[msg.sender] += _amount;
    }
}

// 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/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 MintToZeroAddress();
error MintZeroQuantity();
error OwnerQueryForNonexistentToken();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

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

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

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

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

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

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

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

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

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

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

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

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

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

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        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 && 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 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() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {
            revert TransferToNonERC721ReceiverImplementer();
        }
    }

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

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

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

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

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

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

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

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

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

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

        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 This is 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
// 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 (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 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

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

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

        _;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

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

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        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 v4.5.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

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

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

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

// 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) (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/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);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_ipfsCID","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_newState","type":"uint256"}],"name":"SaleStateChange","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":[{"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":"endPresale","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":"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":"maxTokens","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokensPerWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"saleState","outputs":[{"internalType":"enum Web3Wizards.SaleState","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"setMaxTokensPerWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"name":"setWhitelistMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startPresale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startPublicSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"whitelistMerkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes32[]","name":"_merkleProof","type":"bytes32[]"}],"name":"whitelistMint","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002e516d654a56574e353573734c644e67595035364b3347476d66454e79654e7a526743726139546b51317974353942000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _ipfsCID (string): QmeJVWN55ssLdNgYP56K3GGmfENyeNzRgCra9TkQ1yt59B

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 000000000000000000000000000000000000000000000000000000000000002e
Arg [2] : 516d654a56574e353573734c644e67595035364b3347476d66454e79654e7a52
Arg [3] : 6743726139546b51317974353942000000000000000000000000000000000000