Overview
TokenID
20466
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 0 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
Ethernals
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/Counters.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./Inscription.sol"; import "./Base64.sol"; contract Ethernals is Inscription, Ownable { using Counters for Counters.Counter; string public constant ETHERNAL_HEAER = "eth"; uint8 public constant ETHERNAL_VER = 1; string private baseURL; Counters.Counter private _inscriptionIdTracker; constructor( string memory _baseURL ) Inscription("Ethernal Inscriptions", "INSCRIPTION") { baseURL = _baseURL; _inscriptionIdTracker.increment(); // default inscription ID 1 } /** * @dev inscribe an inscription. * The inscribing function solely validates the format of the calldata and does not verify its content. * The correct content data should be prepared. * The inscribing function does not check for content duplication. * * Ethernals are inscribed by sending a transaction to the contract, the calldata must encoded as follows: * - 3 bytes: header, must be "eth" * - 1 byte: version, must be 1 * - 1 byte: content type length * - content type bytes with length of content type length * - 4 byte: content length * - content bytes with length of content length * * @param input the calldata to be inscribed * @return bytes inscription ID encoded by abi.encode(uint256) */ fallback(bytes calldata input) external returns (bytes memory) { require(msg.sender == tx.origin, "only EOA"); require(keccak256(abi.encodePacked(string(input[0:3]))) == keccak256(abi.encodePacked(ETHERNAL_HEAER)), "invalid header"); require(uint8(input[3]) == ETHERNAL_VER, "invalid version"); uint8 ctlen = uint8(input[4]); uint32 clen = uint32(bytes4(input[5+ctlen:9+ctlen])); require(ctlen > 0 && clen > 0 && input.length == 9 + ctlen + clen, "invalid calldata length"); uint256 id = _inscriptionIdTracker.current(); _inscriptionIdTracker.increment(); _inscribe(msg.sender, id, new bytes(0)); return abi.encode(id); } receive() external payable { revert(); } function tokenURI(uint256 inscriptionId) override public view returns (string memory) { string[17] memory parts; parts[0] = '<svg xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 300 300"><style>.base { fill: white; font-family: serif; font-size: 14px; }</style><rect width="100%" height="100%" fill="black" /><text x="10" y="30" class="base">'; parts[1] = string(abi.encodePacked('Ethernals Protocol')); parts[2] = '</text><text x="10" y="60" class="base">'; parts[3] = string(abi.encodePacked('Inscription #', toString(inscriptionId))); parts[4] = '</text><text x="10" y="90" class="base">'; parts[5] = string(abi.encodePacked(baseURL, '/inscription/', toString(inscriptionId))); parts[6] = '</text></svg>'; string memory output = string(abi.encodePacked(parts[0], parts[1], parts[2], parts[3], parts[4], parts[5], parts[6])); string memory json = Base64.encode(bytes(string(abi.encodePacked('{"name": "Inscription #', toString(inscriptionId), '", "description": "The Ethernals protocol is a new way of inscribing inscriptions on the Ethereum blockchain. The content of the inscription is immutable, and the data is permanently stored on the Ethereum blockchain. Inscription supports a variety of content formats, including text, images, HTMLs, and videos.", "image": "data:image/svg+xml;base64,', Base64.encode(bytes(output)), '"}')))); output = string(abi.encodePacked('data:application/json;base64,', json)); return output; } function inscriptionURL(uint256 inscriptionId) override public view returns (string memory) { return string(abi.encodePacked(baseURL, '/preview/', toString(inscriptionId))); } function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT license // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev 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 { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return 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 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @title Base64 /// @notice Provides a function for encoding some bytes in base64 /// @author Brecht Devos <[email protected]> library Base64 { bytes internal constant TABLE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; /// @notice Encodes some bytes to the base64 representation function encode(bytes memory data) internal pure returns (string memory) { uint256 len = data.length; if (len == 0) return ""; // multiply by 4/3 rounded up uint256 encodedLen = 4 * ((len + 2) / 3); // Add some extra buffer at the end bytes memory result = new bytes(encodedLen + 32); bytes memory table = TABLE; assembly { let tablePtr := add(table, 1) let resultPtr := add(result, 32) for { let i := 0 } lt(i, len) { } { i := add(i, 3) let input := and(mload(add(data, i)), 0xffffff) let out := mload(add(tablePtr, and(shr(18, input), 0x3F))) out := shl(8, out) out := add(out, and(mload(add(tablePtr, and(shr(12, input), 0x3F))), 0xFF)) out := shl(8, out) out := add(out, and(mload(add(tablePtr, and(shr(6, input), 0x3F))), 0xFF)) out := shl(8, out) out := add(out, and(mload(add(tablePtr, and(input, 0x3F))), 0xFF)) out := shl(224, out) mstore(resultPtr, out) resultPtr := add(resultPtr, 4) } switch mod(len, 3) case 1 { mstore(sub(resultPtr, 2), shl(240, 0x3d3d)) } case 2 { mstore(sub(resultPtr, 1), shl(248, 0x3d)) } mstore(result, encodedLen) } return string(result); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/introspection/ERC165.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/utils/Context.sol"; import "./interfaces/IInscription.sol"; import "./interfaces/IInscriptionMetadata.sol"; import "./interfaces/IInscriptionReceiver.sol"; contract Inscription is Context, ERC165, IInscription, IInscriptionMetadata { using Address for address; // Token name string private _name; // Token symbol string private _symbol; // Mapping from inscription ID to owner address mapping(uint256 => address) private _owners; // 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(IInscription).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IInscription-ownerOf}. */ function ownerOf(uint256 inscriptionId) public view virtual override returns (address) { address owner = _owners[inscriptionId]; require(owner != address(0), "Inscription: owner query for nonexistent inscription"); return owner; } /** * @dev Returns the name of the inscription. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev Returns the symbol of the inscription. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev Returns the URI of the inscription. */ function tokenURI(uint256 inscriptionId) public view virtual override returns (string memory) { return ""; } /** * @dev Returns the URL of the inscription. */ function inscriptionURL(uint256 inscriptionId) public view virtual override returns (string memory) { return ""; } /** * @dev See {IInscription-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IInscription-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IInscription-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 inscriptionId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), inscriptionId), "Inscription: transfer caller is not owner nor approved"); _safeTransfer(from, to, inscriptionId, _data); } /** * @dev Safely transfers `inscriptionId` inscription from `from` to `to`, checking first that contract recipients * are aware of the Inscription protocol to prevent inscriptions 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 inscription transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `inscriptionId` inscription must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IInscriptionReceiver-onInscriptionReceived}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 inscriptionId, bytes memory _data ) internal virtual { _transfer(from, to, inscriptionId); require(_checkOnInscriptionReceived(from, to, inscriptionId, _data), "Inscription: transfer to non InscriptionReceiver implementer"); } /** * @dev Mints `inscriptionId` and transfers it to `to`. * * Requirements: * * - `inscriptionId` must not exist. * - If `to` refers to a smart contract, it must implement {IInscriptionReceiver-onInscriptionReceived}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _inscribe( address to, uint256 inscriptionId, bytes memory _data ) internal virtual { require(to != address(0), "Inscription: inscribe to the zero address"); require(!_exists(inscriptionId), "Inscription: inscription already inscribed"); _owners[inscriptionId] = to; emit Transfer(address(0), to, inscriptionId); require( _checkOnInscriptionReceived(address(0), to, inscriptionId, _data), "Inscription: transfer to non InscriptionReceiver implementer" ); } /** * @dev Returns whether `inscriptionId` exists. * * Inscriptions can be managed by their owner or approved accounts via {setApprovalForAll}. * * Inscriptions start existing when they are inscribed (`_inscribe`). */ function _exists(uint256 inscriptionId) internal view virtual returns (bool) { return _owners[inscriptionId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `inscriptionId`. * * Requirements: * * - `inscriptionId` must exist. */ function _isApprovedOrOwner(address spender, uint256 inscriptionId) internal view virtual returns (bool) { require(_exists(inscriptionId), "Inscription: operator query for nonexistent inscription"); address owner = Inscription.ownerOf(inscriptionId); return (spender == owner || isApprovedForAll(owner, spender)); } /** * @dev Transfers `inscriptionId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `inscriptionId` inscription must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 inscriptionId ) internal virtual { require(Inscription.ownerOf(inscriptionId) == from, "Inscription: transfer from incorrect owner"); require(to != address(0), "Inscription: transfer to the zero address"); _owners[inscriptionId] = to; emit Transfer(from, to, inscriptionId); } /** * @dev Approve `operator` to operate on all of `owner` inscriptions * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "Inscription: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IInscriptionReceiver-onInscriptionReceived} 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 inscription ID * @param to target address that will receive the inscriptions * @param inscriptionId uint256 ID of the inscription 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 _checkOnInscriptionReceived( address from, address to, uint256 inscriptionId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IInscriptionReceiver(to).onInscriptionReceived(_msgSender(), from, inscriptionId, _data) returns (bytes4 retval) { return retval == IInscriptionReceiver.onInscriptionReceived.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("Inscription: transfer to non InscriptionReceiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; /** * @dev Required interface of an IInscription compliant contract. */ interface IInscription is IERC165 { /** * @dev Emitted when `inscriptionId` inscription is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed inscriptionId); /** * @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 owner of the `inscriptionId` inscription. * * Requirements: * * - `inscriptionId` must exist. */ function ownerOf(uint256 inscriptionId) external view returns (address owner); /** * @dev Safely transfers `inscriptionId` inscription from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `inscriptionId` inscription must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this inscription by {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IInscriptionReceiver-onInscriptionReceived}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 inscriptionId, bytes calldata data ) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {safeTransferFrom} for any inscription owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IInscription.sol"; interface IInscriptionMetadata is IInscription { /** * @dev Returns the inscription name. */ function name() external view returns (string memory); /** * @dev Returns the inscription symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `inscriptionId` inscription. */ function tokenURI(uint256 inscriptionId) external view returns (string memory); /** * @dev Returns the Inscription Uniform Resource Locator (URL) for `inscriptionId` inscription. */ function inscriptionURL(uint256 inscriptionId) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title IInscription inscription receiver interface * @dev Interface for any contract that wants to support safeTransfers * from IInscription asset contracts. */ interface IInscriptionReceiver { /** * @dev Whenever an {IInscription} `inscriptionId` inscription is transferred to this contract via {IInscription-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the inscription 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 `IInscriptionReceiver.onInscriptionReceived.selector`. */ function onInscriptionReceived( address operator, address from, uint256 inscriptionId, bytes calldata data ) external returns (bytes4); }
{ "optimizer": { "enabled": true, "runs": 200 }, "viaIR": true, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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[{"inputs":[{"internalType":"string","name":"_baseURL","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"inscriptionId","type":"uint256"}],"name":"Transfer","type":"event"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[],"name":"ETHERNAL_HEAER","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ETHERNAL_VER","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"inscriptionId","type":"uint256"}],"name":"inscriptionURL","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"inscriptionId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"inscriptionId","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":"inscriptionId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000001568747470733a2f2f65746865726e616c732e6f72670000000000000000000000
-----Decoded View---------------
Arg [0] : _baseURL (string): https://ethernals.org
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000015
Arg [2] : 68747470733a2f2f65746865726e616c732e6f72670000000000000000000000
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