ERC-721
Overview
Max Total Supply
0 CZNFT
Holders
170
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 CZNFTLoading...
Loading
Loading...
Loading
Loading...
Loading
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
ChainZoomNFT
Compiler Version
v0.8.20+commit.a1b79de6
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.20; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; contract ChainZoomNFT is ERC721, ERC721URIStorage, Ownable { uint256 private _nextTokenId; constructor( address initialOwner ) ERC721("ChainZoomNFT", "CZNFT") Ownable(initialOwner) {} function safeMint(address to, string memory uri) public onlyOwner { uint256 tokenId = _nextTokenId++; _safeMint(to, tokenId); _setTokenURI(tokenId, uri); } function airdrop( address[] memory recipients, string[] memory uris ) public onlyOwner { require( recipients.length == uris.length, "Number of recipients and URIs must be equal" ); for (uint256 i = 0; i < recipients.length; i++) { address recipient = recipients[i]; string memory uri = uris[i]; safeMint(recipient, uri); } } function tokenURI( uint256 tokenId ) public view override(ERC721, ERC721URIStorage) returns (string memory) { return super.tokenURI(tokenId); } function supportsInterface( bytes4 interfaceId ) public view override(ERC721, ERC721URIStorage) returns (bool) { return super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {Context} from "../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. * * The initial owner is set to the address provided by the deployer. 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; /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ constructor(address initialOwner) { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling 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 { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol) pragma solidity ^0.8.20; /** * @dev Standard ERC20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens. */ interface IERC20Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC20InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC20InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers. * @param spender Address that may be allowed to operate on tokens without being their owner. * @param allowance Amount of tokens a `spender` is allowed to operate with. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC20InvalidApprover(address approver); /** * @dev Indicates a failure with the `spender` to be approved. Used in approvals. * @param spender Address that may be allowed to operate on tokens without being their owner. */ error ERC20InvalidSpender(address spender); } /** * @dev Standard ERC721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens. */ interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20. * Used in balance queries. * @param owner Address of the current owner of a token. */ error ERC721InvalidOwner(address owner); /** * @dev Indicates a `tokenId` whose `owner` is the zero address. * @param tokenId Identifier number of a token. */ error ERC721NonexistentToken(uint256 tokenId); /** * @dev Indicates an error related to the ownership over a particular token. Used in transfers. * @param sender Address whose tokens are being transferred. * @param tokenId Identifier number of a token. * @param owner Address of the current owner of a token. */ error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC721InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC721InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param tokenId Identifier number of a token. */ error ERC721InsufficientApproval(address operator, uint256 tokenId); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC721InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC721InvalidOperator(address operator); } /** * @dev Standard ERC1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens. */ interface IERC1155Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. * @param tokenId Identifier number of a token. */ error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC1155InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC1155InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param owner Address of the current owner of a token. */ error ERC1155MissingApprovalForAll(address operator, address owner); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC1155InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC1155InvalidOperator(address operator); /** * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation. * Used in batch transfers. * @param idsLength Length of the array of token identifiers * @param valuesLength Length of the array of token amounts */ error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "../utils/introspection/IERC165.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4906.sol) pragma solidity ^0.8.20; import {IERC165} from "./IERC165.sol"; import {IERC721} from "./IERC721.sol"; /// @title EIP-721 Metadata Update Extension interface IERC4906 is IERC165, IERC721 { /// @dev This event emits when the metadata of a token is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFT. event MetadataUpdate(uint256 _tokenId); /// @dev This event emits when the metadata of a range of tokens is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFTs. event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC721.sol) pragma solidity ^0.8.20; import {IERC721} from "../token/ERC721/IERC721.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.20; import {IERC721} from "./IERC721.sol"; import {IERC721Receiver} from "./IERC721Receiver.sol"; import {IERC721Metadata} from "./extensions/IERC721Metadata.sol"; import {Context} from "../../utils/Context.sol"; import {Strings} from "../../utils/Strings.sol"; import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol"; import {IERC721Errors} from "../../interfaces/draft-IERC6093.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ abstract contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Errors { using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; mapping(uint256 tokenId => address) private _owners; mapping(address owner => uint256) private _balances; mapping(uint256 tokenId => address) private _tokenApprovals; mapping(address owner => mapping(address operator => 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 returns (uint256) { if (owner == address(0)) { revert ERC721InvalidOwner(address(0)); } return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual returns (address) { return _requireOwned(tokenId); } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual returns (string memory) { _requireOwned(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string.concat(baseURI, tokenId.toString()) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual { _approve(to, tokenId, _msgSender()); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual returns (address) { _requireOwned(tokenId); return _getApproved(tokenId); } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom(address from, address to, uint256 tokenId) public virtual { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } // Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists // (from != 0). Therefore, it is not needed to verify that the return value is not 0 here. address previousOwner = _update(to, tokenId, _msgSender()); if (previousOwner != from) { revert ERC721IncorrectOwner(from, tokenId, previousOwner); } } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId) public { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual { transferFrom(from, to, tokenId); _checkOnERC721Received(from, to, tokenId, data); } /** * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist * * IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the * core ERC721 logic MUST be matched with the use of {_increaseBalance} to keep balances * consistent with ownership. The invariant to preserve is that for any address `a` the value returned by * `balanceOf(a)` must be equal to the number of tokens such that `_ownerOf(tokenId)` is `a`. */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @dev Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted. */ function _getApproved(uint256 tokenId) internal view virtual returns (address) { return _tokenApprovals[tokenId]; } /** * @dev Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in * particular (ignoring whether it is owned by `owner`). * * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this * assumption. */ function _isAuthorized(address owner, address spender, uint256 tokenId) internal view virtual returns (bool) { return spender != address(0) && (owner == spender || isApprovedForAll(owner, spender) || _getApproved(tokenId) == spender); } /** * @dev Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner. * Reverts if `spender` does not have approval from the provided `owner` for the given token or for all its assets * the `spender` for the specific `tokenId`. * * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this * assumption. */ function _checkAuthorized(address owner, address spender, uint256 tokenId) internal view virtual { if (!_isAuthorized(owner, spender, tokenId)) { if (owner == address(0)) { revert ERC721NonexistentToken(tokenId); } else { revert ERC721InsufficientApproval(spender, tokenId); } } } /** * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. * * NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that * a uint256 would ever overflow from increments when these increments are bounded to uint128 values. * * WARNING: Increasing an account's balance using this function tends to be paired with an override of the * {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership * remain consistent with one another. */ function _increaseBalance(address account, uint128 value) internal virtual { unchecked { _balances[account] += value; } } /** * @dev Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner * (or `to`) is the zero address. Returns the owner of the `tokenId` before the update. * * The `auth` argument is optional. If the value passed is non 0, then this function will check that * `auth` is either the owner of the token, or approved to operate on the token (by the owner). * * Emits a {Transfer} event. * * NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}. */ function _update(address to, uint256 tokenId, address auth) internal virtual returns (address) { address from = _ownerOf(tokenId); // Perform (optional) operator check if (auth != address(0)) { _checkAuthorized(from, auth, tokenId); } // Execute the update if (from != address(0)) { // Clear approval. No need to re-authorize or emit the Approval event _approve(address(0), tokenId, address(0), false); unchecked { _balances[from] -= 1; } } if (to != address(0)) { unchecked { _balances[to] += 1; } } _owners[tokenId] = to; emit Transfer(from, to, tokenId); return from; } /** * @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 { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } address previousOwner = _update(to, tokenId, address(0)); if (previousOwner != address(0)) { revert ERC721InvalidSender(address(0)); } } /** * @dev Mints `tokenId`, transfers it to `to` and checks for `to` acceptance. * * 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 { _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); _checkOnERC721Received(address(0), to, tokenId, data); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal { address previousOwner = _update(address(0), tokenId, address(0)); if (previousOwner == address(0)) { revert ERC721NonexistentToken(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 { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } address previousOwner = _update(to, tokenId, address(0)); if (previousOwner == address(0)) { revert ERC721NonexistentToken(tokenId); } else if (previousOwner != from) { revert ERC721IncorrectOwner(from, tokenId, previousOwner); } } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients * are aware of the ERC721 standard 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 like {safeTransferFrom} in the sense that it invokes * {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `tokenId` token must exist and be owned by `from`. * - `to` cannot be the zero address. * - `from` cannot be the zero address. * - 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) internal { _safeTransfer(from, to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual { _transfer(from, to, tokenId); _checkOnERC721Received(from, to, tokenId, data); } /** * @dev Approve `to` to operate on `tokenId` * * The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is * either the owner of the token, or approved to operate on all tokens held by this owner. * * Emits an {Approval} event. * * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. */ function _approve(address to, uint256 tokenId, address auth) internal { _approve(to, tokenId, auth, true); } /** * @dev Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not * emitted in the context of transfers. */ function _approve(address to, uint256 tokenId, address auth, bool emitEvent) internal virtual { // Avoid reading the owner unless necessary if (emitEvent || auth != address(0)) { address owner = _requireOwned(tokenId); // We do not use _isAuthorized because single-token approvals should not be able to call approve if (auth != address(0) && owner != auth && !isApprovedForAll(owner, auth)) { revert ERC721InvalidApprover(auth); } if (emitEvent) { emit Approval(owner, to, tokenId); } } _tokenApprovals[tokenId] = to; } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Requirements: * - operator can't be the address zero. * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll(address owner, address operator, bool approved) internal virtual { if (operator == address(0)) { revert ERC721InvalidOperator(operator); } _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned). * Returns the owner. * * Overrides to ownership logic should be done to {_ownerOf}. */ function _requireOwned(uint256 tokenId) internal view returns (address) { address owner = _ownerOf(tokenId); if (owner == address(0)) { revert ERC721NonexistentToken(tokenId); } return owner; } /** * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target address. This will revert if the * recipient doesn't accept the token transfer. 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 */ function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory data) private { if (to.code.length > 0) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { if (retval != IERC721Receiver.onERC721Received.selector) { revert ERC721InvalidReceiver(to); } } catch (bytes memory reason) { if (reason.length == 0) { revert ERC721InvalidReceiver(to); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/ERC721URIStorage.sol) pragma solidity ^0.8.20; import {ERC721} from "../ERC721.sol"; import {Strings} from "../../../utils/Strings.sol"; import {IERC4906} from "../../../interfaces/IERC4906.sol"; import {IERC165} from "../../../interfaces/IERC165.sol"; /** * @dev ERC721 token with storage based token URI management. */ abstract contract ERC721URIStorage is IERC4906, ERC721 { using Strings for uint256; // Interface ID as defined in ERC-4906. This does not correspond to a traditional interface ID as ERC-4906 only // defines events and does not include any external function. bytes4 private constant ERC4906_INTERFACE_ID = bytes4(0x49064906); // Optional mapping for token URIs mapping(uint256 tokenId => string) private _tokenURIs; /** * @dev See {IERC165-supportsInterface} */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, IERC165) returns (bool) { return interfaceId == ERC4906_INTERFACE_ID || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireOwned(tokenId); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = _baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via string.concat). if (bytes(_tokenURI).length > 0) { return string.concat(base, _tokenURI); } return super.tokenURI(tokenId); } /** * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Emits {MetadataUpdate}. */ function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { _tokenURIs[tokenId] = _tokenURI; emit MetadataUpdate(tokenId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.20; import {IERC721} from "../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 v5.0.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or * {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the address zero. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.20; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be * reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @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; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "./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); * } * ``` */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ 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 subtraction of two unsigned integers, with an overflow flag. */ 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. */ 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. */ 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. */ 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 largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; 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_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal * representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } }
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "paris", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"initialOwner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721IncorrectOwner","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721InsufficientApproval","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC721InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"ERC721InvalidOperator","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721InvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC721InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC721InvalidSender","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721NonexistentToken","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_toTokenId","type":"uint256"}],"name":"BatchMetadataUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"MetadataUpdate","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"},{"inputs":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"string[]","name":"uris","type":"string[]"}],"name":"airdrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"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":"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":"to","type":"address"},{"internalType":"string","name":"uri","type":"string"}],"name":"safeMint","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":"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":[{"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"}]
Contract Creation Code
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
Deployed Bytecode
0x608060405234801561001057600080fd5b50600436106101165760003560e01c80638da5cb5b116100a2578063b88d4fde11610071578063b88d4fde14610239578063c87b56dd1461024c578063d204c45e1461025f578063e985e9c514610272578063f2fde38b1461028557600080fd5b80638da5cb5b146101fa57806395d89b411461020b5780639eabbeb214610213578063a22cb4651461022657600080fd5b806323b872dd116100e957806323b872dd1461019857806342842e0e146101ab5780636352211e146101be57806370a08231146101d1578063715018a6146101f257600080fd5b806301ffc9a71461011b57806306fdde0314610143578063081812fc14610158578063095ea7b314610183575b600080fd5b61012e610129366004610fee565b610298565b60405190151581526020015b60405180910390f35b61014b6102a9565b60405161013a919061105b565b61016b61016636600461106e565b61033b565b6040516001600160a01b03909116815260200161013a565b6101966101913660046110a3565b610364565b005b6101966101a63660046110cd565b610373565b6101966101b93660046110cd565b610403565b61016b6101cc36600461106e565b610423565b6101e46101df366004611109565b61042e565b60405190815260200161013a565b610196610476565b6007546001600160a01b031661016b565b61014b61048a565b610196610221366004611297565b610499565b610196610234366004611357565b61056d565b610196610247366004611393565b610578565b61014b61025a36600461106e565b61058f565b61019661026d36600461140f565b61059a565b61012e610280366004611453565b6105cd565b610196610293366004611109565b6105fb565b60006102a382610639565b92915050565b6060600080546102b890611486565b80601f01602080910402602001604051908101604052809291908181526020018280546102e490611486565b80156103315780601f1061030657610100808354040283529160200191610331565b820191906000526020600020905b81548152906001019060200180831161031457829003601f168201915b5050505050905090565b60006103468261065e565b506000828152600460205260409020546001600160a01b03166102a3565b61036f828233610697565b5050565b6001600160a01b0382166103a257604051633250574960e11b8152600060048201526024015b60405180910390fd5b60006103af8383336106a4565b9050836001600160a01b0316816001600160a01b0316146103fd576040516364283d7b60e01b81526001600160a01b0380861660048301526024820184905282166044820152606401610399565b50505050565b61041e83838360405180602001604052806000815250610578565b505050565b60006102a38261065e565b60006001600160a01b03821661045a576040516322718ad960e21b815260006004820152602401610399565b506001600160a01b031660009081526003602052604090205490565b61047e61079d565b61048860006107ca565b565b6060600180546102b890611486565b6104a161079d565b80518251146105065760405162461bcd60e51b815260206004820152602b60248201527f4e756d626572206f6620726563697069656e747320616e642055524973206d7560448201526a1cdd08189948195c5d585b60aa1b6064820152608401610399565b60005b825181101561041e576000838281518110610526576105266114c0565b602002602001015190506000838381518110610544576105446114c0565b60200260200101519050610558828261059a565b50508080610565906114d6565b915050610509565b61036f33838361081c565b610583848484610373565b6103fd848484846108bb565b60606102a3826109e4565b6105a261079d565b60088054600091826105b3836114d6565b9190505590506105c38382610af5565b61041e8183610b0f565b6001600160a01b03918216600090815260056020908152604080832093909416825291909152205460ff1690565b61060361079d565b6001600160a01b03811661062d57604051631e4fbdf760e01b815260006004820152602401610399565b610636816107ca565b50565b60006001600160e01b03198216632483248360e11b14806102a357506102a382610b5f565b6000818152600260205260408120546001600160a01b0316806102a357604051637e27328960e01b815260048101849052602401610399565b61041e8383836001610baf565b6000828152600260205260408120546001600160a01b03908116908316156106d1576106d1818486610cb5565b6001600160a01b0381161561070f576106ee600085600080610baf565b6001600160a01b038116600090815260036020526040902080546000190190555b6001600160a01b0385161561073e576001600160a01b0385166000908152600360205260409020805460010190555b60008481526002602052604080822080546001600160a01b0319166001600160a01b0389811691821790925591518793918516917fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef91a4949350505050565b6007546001600160a01b031633146104885760405163118cdaa760e01b8152336004820152602401610399565b600780546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b6001600160a01b03821661084e57604051630b61174360e31b81526001600160a01b0383166004820152602401610399565b6001600160a01b03838116600081815260056020908152604080832094871680845294825291829020805460ff191686151590811790915591519182527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a3505050565b6001600160a01b0383163b156103fd57604051630a85bd0160e11b81526001600160a01b0384169063150b7a02906108fd9033908890879087906004016114fd565b6020604051808303816000875af1925050508015610938575060408051601f3d908101601f191682019092526109359181019061153a565b60015b6109a1573d808015610966576040519150601f19603f3d011682016040523d82523d6000602084013e61096b565b606091505b50805160000361099957604051633250574960e11b81526001600160a01b0385166004820152602401610399565b805181602001fd5b6001600160e01b03198116630a85bd0160e11b146109dd57604051633250574960e11b81526001600160a01b0385166004820152602401610399565b5050505050565b60606109ef8261065e565b5060008281526006602052604081208054610a0990611486565b80601f0160208091040260200160405190810160405280929190818152602001828054610a3590611486565b8015610a825780601f10610a5757610100808354040283529160200191610a82565b820191906000526020600020905b815481529060010190602001808311610a6557829003601f168201915b505050505090506000610aa060408051602081019091526000815290565b90508051600003610ab2575092915050565b815115610ae4578082604051602001610acc929190611557565b60405160208183030381529060405292505050919050565b610aed84610d19565b949350505050565b61036f828260405180602001604052806000815250610d8e565b6000828152600660205260409020610b2782826115d4565b506040518281527ff8e1a15aba9398e019f0b49df1a4fde98ee17ae345cb5f6b5e2c27f5033e8ce79060200160405180910390a15050565b60006001600160e01b031982166380ac58cd60e01b1480610b9057506001600160e01b03198216635b5e139f60e01b145b806102a357506301ffc9a760e01b6001600160e01b03198316146102a3565b8080610bc357506001600160a01b03821615155b15610c85576000610bd38461065e565b90506001600160a01b03831615801590610bff5750826001600160a01b0316816001600160a01b031614155b8015610c125750610c1081846105cd565b155b15610c3b5760405163a9fbf51f60e01b81526001600160a01b0384166004820152602401610399565b8115610c835783856001600160a01b0316826001600160a01b03167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92560405160405180910390a45b505b5050600090815260046020526040902080546001600160a01b0319166001600160a01b0392909216919091179055565b610cc0838383610da5565b61041e576001600160a01b038316610cee57604051637e27328960e01b815260048101829052602401610399565b60405163177e802f60e01b81526001600160a01b038316600482015260248101829052604401610399565b6060610d248261065e565b506000610d3c60408051602081019091526000815290565b90506000815111610d5c5760405180602001604052806000815250610d87565b80610d6684610e08565b604051602001610d77929190611557565b6040516020818303038152906040525b9392505050565b610d988383610e9b565b61041e60008484846108bb565b60006001600160a01b03831615801590610aed5750826001600160a01b0316846001600160a01b03161480610ddf5750610ddf84846105cd565b80610aed5750506000908152600460205260409020546001600160a01b03908116911614919050565b60606000610e1583610f00565b600101905060008167ffffffffffffffff811115610e3557610e35611124565b6040519080825280601f01601f191660200182016040528015610e5f576020820181803683370190505b5090508181016020015b600019016f181899199a1a9b1b9c1cb0b131b232b360811b600a86061a8153600a8504945084610e6957509392505050565b6001600160a01b038216610ec557604051633250574960e11b815260006004820152602401610399565b6000610ed3838360006106a4565b90506001600160a01b0381161561041e576040516339e3563760e11b815260006004820152602401610399565b60008072184f03e93ff9f4daa797ed6e38ed64bf6a1f0160401b8310610f3f5772184f03e93ff9f4daa797ed6e38ed64bf6a1f0160401b830492506040015b6d04ee2d6d415b85acef81000000008310610f6b576d04ee2d6d415b85acef8100000000830492506020015b662386f26fc100008310610f8957662386f26fc10000830492506010015b6305f5e1008310610fa1576305f5e100830492506008015b6127108310610fb557612710830492506004015b60648310610fc7576064830492506002015b600a83106102a35760010192915050565b6001600160e01b03198116811461063657600080fd5b60006020828403121561100057600080fd5b8135610d8781610fd8565b60005b8381101561102657818101518382015260200161100e565b50506000910152565b6000815180845261104781602086016020860161100b565b601f01601f19169290920160200192915050565b602081526000610d87602083018461102f565b60006020828403121561108057600080fd5b5035919050565b80356001600160a01b038116811461109e57600080fd5b919050565b600080604083850312156110b657600080fd5b6110bf83611087565b946020939093013593505050565b6000806000606084860312156110e257600080fd5b6110eb84611087565b92506110f960208501611087565b9150604084013590509250925092565b60006020828403121561111b57600080fd5b610d8782611087565b634e487b7160e01b600052604160045260246000fd5b604051601f8201601f1916810167ffffffffffffffff8111828210171561116357611163611124565b604052919050565b600067ffffffffffffffff82111561118557611185611124565b5060051b60200190565b600067ffffffffffffffff8311156111a9576111a9611124565b6111bc601f8401601f191660200161113a565b90508281528383830111156111d057600080fd5b828260208301376000602084830101529392505050565b600082601f8301126111f857600080fd5b610d878383356020850161118f565b600082601f83011261121857600080fd5b8135602061122d6112288361116b565b61113a565b82815260059290921b8401810191818101908684111561124c57600080fd5b8286015b8481101561128c57803567ffffffffffffffff8111156112705760008081fd5b61127e8986838b01016111e7565b845250918301918301611250565b509695505050505050565b600080604083850312156112aa57600080fd5b823567ffffffffffffffff808211156112c257600080fd5b818501915085601f8301126112d657600080fd5b813560206112e66112288361116b565b82815260059290921b8401810191818101908984111561130557600080fd5b948201945b8386101561132a5761131b86611087565b8252948201949082019061130a565b9650508601359250508082111561134057600080fd5b5061134d85828601611207565b9150509250929050565b6000806040838503121561136a57600080fd5b61137383611087565b91506020830135801515811461138857600080fd5b809150509250929050565b600080600080608085870312156113a957600080fd5b6113b285611087565b93506113c060208601611087565b925060408501359150606085013567ffffffffffffffff8111156113e357600080fd5b8501601f810187136113f457600080fd5b6114038782356020840161118f565b91505092959194509250565b6000806040838503121561142257600080fd5b61142b83611087565b9150602083013567ffffffffffffffff81111561144757600080fd5b61134d858286016111e7565b6000806040838503121561146657600080fd5b61146f83611087565b915061147d60208401611087565b90509250929050565b600181811c9082168061149a57607f821691505b6020821081036114ba57634e487b7160e01b600052602260045260246000fd5b50919050565b634e487b7160e01b600052603260045260246000fd5b6000600182016114f657634e487b7160e01b600052601160045260246000fd5b5060010190565b6001600160a01b03858116825284166020820152604081018390526080606082018190526000906115309083018461102f565b9695505050505050565b60006020828403121561154c57600080fd5b8151610d8781610fd8565b6000835161156981846020880161100b565b83519083019061157d81836020880161100b565b01949350505050565b601f82111561041e57600081815260208120601f850160051c810160208610156115ad5750805b601f850160051c820191505b818110156115cc578281556001016115b9565b505050505050565b815167ffffffffffffffff8111156115ee576115ee611124565b611602816115fc8454611486565b84611586565b602080601f831160018114611637576000841561161f5750858301515b600019600386901b1c1916600185901b1785556115cc565b600085815260208120601f198616915b8281101561166657888601518255948401946001909101908401611647565b50858210156116845787850151600019600388901b60f8161c191681555b5050505050600190811b0190555056fea26469706673582212206e10bb451306b2f0162683cccb3880a2820efaf097bca48e0255b85e92fbeb0264736f6c63430008140033
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000002752a250d822d96629f7a719e694c89a74517421
-----Decoded View---------------
Arg [0] : initialOwner (address): 0x2752A250d822D96629F7a719e694c89a74517421
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000002752a250d822d96629f7a719e694c89a74517421
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.