Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

pragma solidity ^0.8.0;

// SPDX-License-Identifier: MIT

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);
}

// File @openzeppelin/contracts/token/ERC721/[email protected]

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

// File @openzeppelin/contracts/token/ERC721/[email protected]

pragma solidity ^0.8.0;

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

// File @openzeppelin/contracts/token/ERC721/extensions/[email protected]

pragma solidity ^0.8.0;

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
  /**
   * @dev Returns the token collection name.
   */
  function name() external view returns (string memory);

  /**
   * @dev Returns the token collection symbol.
   */
  function symbol() external view returns (string memory);

  /**
   * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
   */
  function tokenURI(uint256 tokenId) external view returns (string memory);
}

// File @openzeppelin/contracts/utils/[email protected]

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
  /**
   * @dev Returns true if `account` is a contract.
   *
   * [IMPORTANT]
   * ====
   * It is unsafe to assume that an address for which this function returns
   * false is an externally-owned account (EOA) and not a contract.
   *
   * Among others, `isContract` will return false for the following
   * types of addresses:
   *
   *  - an externally-owned account
   *  - a contract in construction
   *  - an address where a contract will be created
   *  - an address where a contract lived, but was destroyed
   * ====
   */
  function isContract(address account) internal view returns (bool) {
    // This method relies on extcodesize, which returns 0 for contracts in
    // construction, since the code is only stored at the end of the
    // constructor execution.

    uint256 size;
    assembly {
      size := extcodesize(account)
    }
    return size > 0;
  }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// File @openzeppelin/contracts/utils/[email protected]

pragma solidity ^0.8.0;

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

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

// File @openzeppelin/contracts/utils/[email protected]

pragma solidity ^0.8.0;

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

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

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

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

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

// File @openzeppelin/contracts/utils/introspection/[email protected]

pragma solidity ^0.8.0;

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

// File @openzeppelin/contracts/token/ERC721/[email protected]

pragma solidity ^0.8.0;

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

  // Token name
  string private _name;

  // Token symbol
  string private _symbol;

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

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

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

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

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

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

  /**
   * @dev See {IERC721-balanceOf}.
   */
  function balanceOf(address owner)
    public
    view
    virtual
    override
    returns (uint256)
  {
    require(owner != address(0), "ERC721: balance query for the zero address");
    return _balances[owner];
  }

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

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

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

  /**
   * @dev See {IERC721Metadata-tokenURI}.
   */
  function tokenURI(uint256 tokenId)
    public
    view
    virtual
    override
    returns (string memory)
  {
    require(
      _exists(tokenId),
      "ERC721Metadata: URI query for nonexistent token"
    );

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

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

  /**
   * @dev See {IERC721-approve}.
   */
  function approve(address to, uint256 tokenId) public virtual override {
    address owner = ERC721.ownerOf(tokenId);
    require(to != owner, "ERC721: approval to current owner");

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

    _approve(to, tokenId);
  }

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

    return _tokenApprovals[tokenId];
  }

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

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

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

  /**
   * @dev See {IERC721-transferFrom}.
   */
  function transferFrom(
    address from,
    address to,
    uint256 tokenId
  ) public virtual override {
    //solhint-disable-next-line max-line-length
    require(
      _isApprovedOrOwner(_msgSender(), tokenId),
      "ERC721: transfer caller is not owner nor approved"
    );

    _transfer(from, to, tokenId);
  }

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

  /**
   * @dev See {IERC721-safeTransferFrom}.
   */
  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes memory _data
  ) public virtual override {
    require(
      _isApprovedOrOwner(_msgSender(), tokenId),
      "ERC721: transfer caller is not owner nor approved"
    );
    _safeTransfer(from, to, tokenId, _data);
  }

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

  /**
   * @dev Returns whether `tokenId` exists.
   *
   * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
   *
   * Tokens start existing when they are minted (`_mint`),
   * and stop existing when they are burned (`_burn`).
   */
  function _exists(uint256 tokenId) internal view virtual returns (bool) {
    return _owners[tokenId] != address(0);
  }

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

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

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

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

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

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

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

  /**
   * @dev Destroys `tokenId`.
   * The approval is cleared when the token is burned.
   *
   * Requirements:
   *
   * - `tokenId` must exist.
   *
   * Emits a {Transfer} event.
   */
  function _burn(uint256 tokenId) internal virtual {
    address owner = ERC721.ownerOf(tokenId);

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

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

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

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

  /**
   * @dev Transfers `tokenId` from `from` to `to`.
   *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
   *
   * Requirements:
   *
   * - `to` cannot be the zero address.
   * - `tokenId` token must be owned by `from`.
   *
   * Emits a {Transfer} event.
   */
  function _transfer(
    address from,
    address to,
    uint256 tokenId
  ) internal virtual {
    require(
      ERC721.ownerOf(tokenId) == from,
      "ERC721: transfer of token that is not own"
    );
    require(to != address(0), "ERC721: transfer to the zero address");

    _beforeTokenTransfer(from, to, tokenId);

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

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

    emit Transfer(from, to, tokenId);
  }

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

  /**
   * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
   * The call is not executed if the target address is not a contract.
   *
   * @param from address representing the previous owner of the given token ID
   * @param to target address that will receive the tokens
   * @param tokenId uint256 ID of the token to be transferred
   * @param _data bytes optional data to send along with the call
   * @return bool whether the call correctly returned the expected magic value
   */
  function _checkOnERC721Received(
    address from,
    address to,
    uint256 tokenId,
    bytes memory _data
  ) private returns (bool) {
    if (to.isContract()) {
      try
        IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data)
      returns (bytes4 retval) {
        return retval == IERC721Receiver.onERC721Received.selector;
      } catch (bytes memory reason) {
        if (reason.length == 0) {
          revert("ERC721: transfer to non ERC721Receiver implementer");
        } else {
          assembly {
            revert(add(32, reason), mload(reason))
          }
        }
      }
    } else {
      return true;
    }
  }

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

// File @openzeppelin/contracts/token/ERC721/extensions/[email protected]

pragma solidity ^0.8.0;

/**
 * @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 tokenId);

  /**
   * @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);
}

// File @openzeppelin/contracts/token/ERC721/extensions/[email protected]

pragma solidity ^0.8.0;

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
  // Mapping from owner to list of owned token IDs
  mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

  // Mapping from token ID to index of the owner tokens list
  mapping(uint256 => uint256) private _ownedTokensIndex;

  // Array with all token ids, used for enumeration
  uint256[] private _allTokens;

  // Mapping from token id to position in the allTokens array
  mapping(uint256 => uint256) private _allTokensIndex;

  /**
   * @dev See {IERC165-supportsInterface}.
   */
  function supportsInterface(bytes4 interfaceId)
    public
    view
    virtual
    override(IERC165, ERC721)
    returns (bool)
  {
    return
      interfaceId == type(IERC721Enumerable).interfaceId ||
      super.supportsInterface(interfaceId);
  }

  /**
   * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
   */
  function tokenOfOwnerByIndex(address owner, uint256 index)
    public
    view
    virtual
    override
    returns (uint256)
  {
    require(
      index < ERC721.balanceOf(owner),
      "ERC721Enumerable: owner index out of bounds"
    );
    return _ownedTokens[owner][index];
  }

  /**
   * @dev See {IERC721Enumerable-totalSupply}.
   */
  function totalSupply() public view virtual override returns (uint256) {
    return _allTokens.length;
  }

  /**
   * @dev See {IERC721Enumerable-tokenByIndex}.
   */
  function tokenByIndex(uint256 index)
    public
    view
    virtual
    override
    returns (uint256)
  {
    require(
      index < ERC721Enumerable.totalSupply(),
      "ERC721Enumerable: global index out of bounds"
    );
    return _allTokens[index];
  }

  /**
   * @dev Hook that is called before any token transfer. This includes minting
   * and burning.
   *
   * Calling conditions:
   *
   * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
   * transferred to `to`.
   * - When `from` is zero, `tokenId` will be minted for `to`.
   * - When `to` is zero, ``from``'s `tokenId` will be burned.
   * - `from` cannot be the zero address.
   * - `to` cannot be the zero address.
   *
   * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
   */
  function _beforeTokenTransfer(
    address from,
    address to,
    uint256 tokenId
  ) internal virtual override {
    super._beforeTokenTransfer(from, to, tokenId);

    if (from == address(0)) {
      _addTokenToAllTokensEnumeration(tokenId);
    } else if (from != to) {
      _removeTokenFromOwnerEnumeration(from, tokenId);
    }
    if (to == address(0)) {
      _removeTokenFromAllTokensEnumeration(tokenId);
    } else if (to != from) {
      _addTokenToOwnerEnumeration(to, tokenId);
    }
  }

  /**
   * @dev Private function to add a token to this extension's ownership-tracking data structures.
   * @param to address representing the new owner of the given token ID
   * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
   */
  function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
    uint256 length = ERC721.balanceOf(to);
    _ownedTokens[to][length] = tokenId;
    _ownedTokensIndex[tokenId] = length;
  }

  /**
   * @dev Private function to add a token to this extension's token tracking data structures.
   * @param tokenId uint256 ID of the token to be added to the tokens list
   */
  function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
    _allTokensIndex[tokenId] = _allTokens.length;
    _allTokens.push(tokenId);
  }

  /**
   * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
   * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
   * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
   * This has O(1) time complexity, but alters the order of the _ownedTokens array.
   * @param from address representing the previous owner of the given token ID
   * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
   */
  function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId)
    private
  {
    // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
    // then delete the last slot (swap and pop).

    uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
    uint256 tokenIndex = _ownedTokensIndex[tokenId];

    // When the token to delete is the last token, the swap operation is unnecessary
    if (tokenIndex != lastTokenIndex) {
      uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

      _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
      _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
    }

    // This also deletes the contents at the last position of the array
    delete _ownedTokensIndex[tokenId];
    delete _ownedTokens[from][lastTokenIndex];
  }

  /**
   * @dev Private function to remove a token from this extension's token tracking data structures.
   * This has O(1) time complexity, but alters the order of the _allTokens array.
   * @param tokenId uint256 ID of the token to be removed from the tokens list
   */
  function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
    // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
    // then delete the last slot (swap and pop).

    uint256 lastTokenIndex = _allTokens.length - 1;
    uint256 tokenIndex = _allTokensIndex[tokenId];

    // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
    // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
    // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
    uint256 lastTokenId = _allTokens[lastTokenIndex];

    _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
    _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

    // This also deletes the contents at the last position of the array
    delete _allTokensIndex[tokenId];
    _allTokens.pop();
  }
}

// File @openzeppelin/contracts/access/[email protected]

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// File @openzeppelin/contracts/utils/math/[email protected]

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

contract GameDiseaseArtDispenser is ERC721, Ownable, ERC721Enumerable {
  using SafeMath for uint256;

  event minted(uint256 indexed tokenId, address indexed by);

  string public baseUri;

  mapping(address => bool) public signers;

  constructor() ERC721("GameDiseaseArtDispenser", "GDAD") {}

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

  function setBaseUri(string memory value) public onlyOwner {
    baseUri = value;
  }

  function setSigner(address signer, bool status) public onlyOwner {
    signers[signer] = status;
  }

  function getMessageSigner(bytes memory signature, uint256 tokenId)
    private
    view
    returns (address)
  {
    require(signature.length == 65);
    uint8 v;
    bytes32 r;
    bytes32 s;
    assembly {
      r := mload(add(signature, 32))
      s := mload(add(signature, 64))
      v := byte(0, mload(add(signature, 96)))
    }
    bytes32 signedHash = keccak256(
      abi.encodePacked(
        "\x19Ethereum Signed Message:\n32",
        keccak256(abi.encodePacked(msg.sender, tokenId))
      )
    );
    return ecrecover(signedHash, v, r, s);
  }

  function mint(bytes memory signature, uint256 tokenId) public {
    require(signers[getMessageSigner(signature, tokenId)], "not a signer");
    _safeMint(msg.sender, tokenId);
    emit minted(tokenId, msg.sender);
  }

  function _beforeTokenTransfer(
    address from,
    address to,
    uint256 tokenId
  ) internal virtual override(ERC721, ERC721Enumerable) {
    super._beforeTokenTransfer(from, to, tokenId);
  }

  function supportsInterface(bytes4 interfaceId)
    public
    view
    virtual
    override(ERC721, ERC721Enumerable)
    returns (bool)
  {
    return super.supportsInterface(interfaceId);
  }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"by","type":"address"}],"name":"minted","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":"baseUri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"uint256","name":"tokenId","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":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"value","type":"string"}],"name":"setBaseUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"signer","type":"address"},{"internalType":"bool","name":"status","type":"bool"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"signers","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"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"}]

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