Feature Tip: Add private address tag to any address under My Name Tag !
ERC-721
Overview
Max Total Supply
9,310 EARTHWORM
Holders
1,375
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 EARTHWORMLoading...
Loading
Loading...
Loading
Loading...
Loading
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
QUADHASH
Compiler Version
v0.8.13+commit.abaa5c0e
Optimization Enabled:
Yes with 1500 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "operator-filter-registry/src/DefaultOperatorFilterer.sol"; contract QUADHASH is ERC721, Pausable, ERC721Burnable, AccessControl, DefaultOperatorFilterer { using Strings for uint256; bytes32 public constant TEAM_ROLE = keccak256("TEAM_ROLE"); bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE"); uint256 private _totalSupply; string private _currentBaseURI; mapping(uint256 => bool) private _restrictedToken; constructor(string memory name, string memory symbol) ERC721(name, symbol) { _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); _grantRole(TEAM_ROLE, msg.sender); _grantRole(ADMIN_ROLE, msg.sender); } function _baseURI() internal view override returns (string memory) { return _currentBaseURI; } function setBaseURI(string calldata baseURI) external onlyRole(ADMIN_ROLE) { _currentBaseURI = baseURI; } function restrict(uint256 tokenId) external onlyRole(TEAM_ROLE) { _restrictedToken[tokenId] = true; } function unrestrict(uint256 tokenId) external onlyRole(ADMIN_ROLE) { _restrictedToken[tokenId] = false; } function restricted(uint256 tokenId) external view returns (bool) { return _restrictedToken[tokenId]; } function pause() public onlyRole(ADMIN_ROLE) { _pause(); } function unpause() public onlyRole(ADMIN_ROLE) { _unpause(); } function mint(address to, uint256 tokenId) public onlyRole(ADMIN_ROLE) { _mint(to, tokenId); } //NFTs involved in crimes, such as hacking, can be burned through a community report. function burnByAdmin(uint256 tokenId) public onlyRole(ADMIN_ROLE) { _burn(tokenId); } function totalSupply() public view returns (uint256) { return _totalSupply; } function tokenURI(uint256 tokenId) public view override returns (string memory) { require(_exists(tokenId), "Invalid token ID"); string memory baseURI = _baseURI(); return string(abi.encodePacked(baseURI, tokenId.toString(), ".json")); } function _mint(address to, uint256 tokenId) internal override { _totalSupply += 1; super._mint(to, tokenId); } function _burn(uint256 tokenId) internal override { _totalSupply -= 1; super._burn(tokenId); } function _beforeTokenTransfer(address from, address to, uint256 tokenId, uint256 batchSize) internal override { if (from != address(0) && to != address(0)) { require(!_restrictedToken[tokenId], "Restrict: restricted"); require(!paused(), "Pausable: paused"); } super._beforeTokenTransfer(from, to, tokenId, batchSize); } // The following functions are overrides required by Solidity. function supportsInterface(bytes4 interfaceId) public view override(ERC721, AccessControl) returns (bool) { return super.supportsInterface(interfaceId); } // Operator Filter function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } function transferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; address constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E; address constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol"; import {CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS} from "./lib/Constants.sol"; /** * @title OperatorFilterer * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another * registrant's entries in the OperatorFilterRegistry. * @dev This smart contract is meant to be inherited by token contracts so they can use the following: * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods. * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods. * Please note that if your token contract does not provide an owner with EIP-173, it must provide * administration methods on the contract itself to interact with the registry otherwise the subscription * will be locked to the options set during construction. */ abstract contract OperatorFilterer { /// @dev Emitted when an operator is not allowed. error OperatorNotAllowed(address operator); IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY = IOperatorFilterRegistry(CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS); /// @dev The constructor that is called when the contract is being deployed. constructor(address subscriptionOrRegistrantToCopy, bool subscribe) { // If an inheriting token contract is deployed to a network without the registry deployed, the modifier // will not revert, but the contract will need to be registered with the registry once it is deployed in // order for the modifier to filter addresses. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { if (subscribe) { OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy); } else { if (subscriptionOrRegistrantToCopy != address(0)) { OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy); } else { OPERATOR_FILTER_REGISTRY.register(address(this)); } } } } /** * @dev A helper function to check if an operator is allowed. */ modifier onlyAllowedOperator(address from) virtual { // Allow spending tokens from addresses with balance // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred // from an EOA. if (from != msg.sender) { _checkFilterOperator(msg.sender); } _; } /** * @dev A helper function to check if an operator approval is allowed. */ modifier onlyAllowedOperatorApproval(address operator) virtual { _checkFilterOperator(operator); _; } /** * @dev A helper function to check if an operator is allowed. */ function _checkFilterOperator(address operator) internal view virtual { // Check registry code length to facilitate testing in environments without a deployed registry. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { // under normal circumstances, this function will revert rather than return false, but inheriting contracts // may specify their own OperatorFilterRegistry implementations, which may behave differently if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) { revert OperatorNotAllowed(operator); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; interface IOperatorFilterRegistry { /** * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns * true if supplied registrant address is not registered. */ function isOperatorAllowed(address registrant, address operator) external view returns (bool); /** * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner. */ function register(address registrant) external; /** * @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes. */ function registerAndSubscribe(address registrant, address subscription) external; /** * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another * address without subscribing. */ function registerAndCopyEntries(address registrant, address registrantToCopy) external; /** * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner. * Note that this does not remove any filtered addresses or codeHashes. * Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes. */ function unregister(address addr) external; /** * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered. */ function updateOperator(address registrant, address operator, bool filtered) external; /** * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates. */ function updateOperators(address registrant, address[] calldata operators, bool filtered) external; /** * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered. */ function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external; /** * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates. */ function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external; /** * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous * subscription if present. * Note that accounts with subscriptions may go on to subscribe to other accounts - in this case, * subscriptions will not be forwarded. Instead the former subscription's existing entries will still be * used. */ function subscribe(address registrant, address registrantToSubscribe) external; /** * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes. */ function unsubscribe(address registrant, bool copyExistingEntries) external; /** * @notice Get the subscription address of a given registrant, if any. */ function subscriptionOf(address addr) external returns (address registrant); /** * @notice Get the set of addresses subscribed to a given registrant. * Note that order is not guaranteed as updates are made. */ function subscribers(address registrant) external returns (address[] memory); /** * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant. * Note that order is not guaranteed as updates are made. */ function subscriberAt(address registrant, uint256 index) external returns (address); /** * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr. */ function copyEntriesOf(address registrant, address registrantToCopy) external; /** * @notice Returns true if operator is filtered by a given address or its subscription. */ function isOperatorFiltered(address registrant, address operator) external returns (bool); /** * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription. */ function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool); /** * @notice Returns true if a codeHash is filtered by a given address or its subscription. */ function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool); /** * @notice Returns a list of filtered operators for a given address or its subscription. */ function filteredOperators(address addr) external returns (address[] memory); /** * @notice Returns the set of filtered codeHashes for a given address or its subscription. * Note that order is not guaranteed as updates are made. */ function filteredCodeHashes(address addr) external returns (bytes32[] memory); /** * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or * its subscription. * Note that order is not guaranteed as updates are made. */ function filteredOperatorAt(address registrant, uint256 index) external returns (address); /** * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or * its subscription. * Note that order is not guaranteed as updates are made. */ function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32); /** * @notice Returns true if an address has registered */ function isRegistered(address addr) external returns (bool); /** * @dev Convenience method to compute the code hash of an arbitrary contract */ function codeHashOf(address addr) external returns (bytes32); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import {OperatorFilterer} from "./OperatorFilterer.sol"; import {CANONICAL_CORI_SUBSCRIPTION} from "./lib/Constants.sol"; /** * @title DefaultOperatorFilterer * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription. * @dev Please note that if your token contract does not provide an owner with EIP-173, it must provide * administration methods on the contract itself to interact with the registry otherwise the subscription * will be locked to the options set during construction. */ abstract contract DefaultOperatorFilterer is OperatorFilterer { /// @dev The constructor that is called when the contract is being deployed. constructor() OperatorFilterer(CANONICAL_CORI_SUBSCRIPTION, true) {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @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 v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // 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. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 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 + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; import "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(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) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "../../../utils/Context.sol"; /** * @title ERC721 Burnable Token * @dev ERC721 Token that can be burned (destroyed). */ abstract contract ERC721Burnable is Context, ERC721 { /** * @dev Burns `tokenId`. See {ERC721-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) public virtual { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _burn(tokenId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.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}. */ 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: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _ownerOf(tokenId); require(owner != address(0), "ERC721: invalid token ID"); 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) { _requireMinted(tokenId); 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 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 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 token owner or approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_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: caller is not token owner or 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: caller is not token owner or 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 the owner of the `tokenId`. Does NOT revert if token doesn't exist */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @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 _ownerOf(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) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == 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, 1); // Check that tokenId was not minted by `_beforeTokenTransfer` hook require(!_exists(tokenId), "ERC721: token already minted"); unchecked { // Will not overflow unless all 2**256 token ids are minted to the same owner. // Given that tokens are minted one by one, it is impossible in practice that // this ever happens. Might change if we allow batch minting. // The ERC fails to describe this case. _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId, 1); } /** * @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 virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId, 1); // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook owner = ERC721.ownerOf(tokenId); // Clear approvals delete _tokenApprovals[tokenId]; unchecked { // Cannot overflow, as that would require more tokens to be burned/transferred // out than the owner initially received through minting and transferring in. _balances[owner] -= 1; } delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId, 1); } /** * @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 from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId, 1); // Check that tokenId was not transferred by `_beforeTokenTransfer` hook require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); // Clear approvals from the previous owner delete _tokenApprovals[tokenId]; unchecked { // `_balances[from]` cannot overflow for the same reason as described in `_burn`: // `from`'s balance is the number of token held, which is at least one before the current // transfer. // `_balances[to]` could overflow in the conditions described in `_mint`. That would require // all 2**256 token ids to be minted, which in practice is impossible. _balances[from] -= 1; _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId, 1); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll(address owner, address operator, bool approved) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @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 { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`. * - When `from` is zero, the tokens will be minted for `to`. * - When `to` is zero, ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {} /** * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`. * - When `from` is zero, the tokens were minted for `to`. * - When `to` is zero, ``from``'s tokens were burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {} /** * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. * * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant * being 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`. */ // solhint-disable-next-line func-name-mixedcase function __unsafe_increaseBalance(address account, uint256 amount) internal { _balances[account] += amount; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { require(paused(), "Pausable: not paused"); } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
{ "remappings": [], "optimizer": { "enabled": true, "runs": 1500 }, "evmVersion": "london", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"OperatorNotAllowed","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPERATOR_FILTER_REGISTRY","outputs":[{"internalType":"contract IOperatorFilterRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TEAM_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","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":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burnByAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"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":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"restrict","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"restricted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"unrestrict","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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
Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000145155414448415348203a204561727468776f726d00000000000000000000000000000000000000000000000000000000000000000000000000000000000000094541525448574f524d0000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : name (string): QUADHASH : Earthworm
Arg [1] : symbol (string): EARTHWORM
-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000014
Arg [3] : 5155414448415348203a204561727468776f726d000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000009
Arg [5] : 4541525448574f524d0000000000000000000000000000000000000000000000
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.