ERC-721
Overview
Max Total Supply
0 PPP
Holders
40
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 PPPLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
PPP
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 300 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @title: PREREQUISITE PORTRAITS /// @author: manifold.xyz import "./manifold/ERC721Creator.sol"; //////////////////////////////////////////////////////////////////////////////////////////////// // // // // // // // βββββββββββ¬β£β£β¬ββββββββββββ¬β£β£β¬ββββ¬ββββββββββββββ¬β¬β£βββββ£β£β¬βββββββββββββββββ¬β¬ββββββ // // βββββββββββββ¬β¬β£β¬βββββββββββ¬β¬β¬β¬β¬β£β¬β¬ββββββ£ββββββ¬β¬β¬β¬ββββ¬β¬β£β¬βββββββββββββ¬β¬β¬β£ββββββββ // // ββββββββββββββ¬β¬β¬β¬β£β¬ββββ¬β£ββββ¬β’β¬β¬β¬β¬β¬β¬βββββ¬ββββ¬β¬β¬β¬β¬β¬ββββ£β£β¬β¬ββββββββββ¬β¬β¬β£β£ββββββββββ // // βββββ¬β¬β£ββββββββ¬β¬β¬ββ¬β£β¬β£βββ¬β¬ββββ’β¬β¬β£β¬β¬β ββββ£β£ββ¬β£β¬β£β¬β¬β¬ββββ’ββ¬β£ββββββββ¬β’β£β£β¬ββββββββββββ¬ // // βββββββ£β¬β£βββββββ¬β¬β¬β¬ββ¬β£β£βββ¬β’ββ¬ββ¬β¬β¬β¬β¬β¬β«βββ£β¬β¬β«β¬β¬β¬β ββ£ββββ¬ββ¬βββββββ¬β¬β£β¬β¬β¬ββ£βββββ£ββ¬β¬β¬β¬β£ // // ββββββββββ¬ββ¬βββββ¬β¬β¬β¬β¬β£β«β£β¬ββ£ββββ£β¬β£β¬β¬β¬β¬β«ββββ£β¬β¬β¬β¬β£β¬β£ββββ£ββ£βββββ¬β¬β¬β¬β¬β¬β£β£ββββ£β¬β¬β β£βββββ // // β¬β£ββββββ¬ββββββββββ¬β¬β¬β¬β¬β£β£β¬β£ββββ£β£ββ£β£β¬βββ£βββββ£β«β¬βββ£βββββββββββ¬β¬β¬β«β¬β¬β£βββββ¬ββββββ£βββ£β£ // // β¬β¬β¬β£β¬ββ¬β¬β¬β¬ββββββ¬β£ββ¬β£β£ββ¬β¬ββ¬β¬βββββββ¬ββ¬β¬β£ββββββ¬β£ββββββββββββ¬β£β¬β£β¬β£β£ββ£β£βββββββββ£β£ββββ // // β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬β£β£ββββ£β£β¬ββ¬β£β¬β¬β¬β£ββ¬β£ββββββ¬βββ¬ββββββ£βββββββββββββ£β¬β£β¬β¬β¬β£ββ£ββββ£βββββββββββ // // β¬β¬β¬β¬β’β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β£β¬β£β¬β£ββ¬β£β¬β£β¬ββββββββββββββββββββββββββββββββ¬ββ¬β£βββ£βββββββββββββββ // // β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬β£β£β£β¬βββ£βββββββββ¬β¬β¬β£β¬β¬β¬β£ββ¬β¬ββ¬β¬β¬ββββββββββββββββββββββββββββββββββββ¬ // // β¬β£βββ¬β¬β¬β¬β¬β¬β¬β¬β¬β£β£β¬β£β£β¬β¬βββββββ¬β£β¬β¬β£β¬β£β£β£β¬β¬β¬β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β β¬β¬β¬β¬βββββββββββββββββββββββββββ // // β¬β¬β¬β¬β¬β¬β£β£β¬β¬β¬β¬β¬β¬β¬β¬β£β¬ββ£β£ββββ¬ββββ«β£β£β¬β’β¬β¬β£β£β¬β¬β¬β¬β¬β β©βββββββ β¬β¬β¬β¬ββββ¬βββββββββββββββββββ¬β¬β¬ // // β¬β¬β£β£β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£ββ¬β£βββ¬β£ββ¬β¬β¬β£β¬β¬β¬β’β¬β¬β¬β’β β βββΟβΟβββ β£β¬β¬β¬β¬β£βββ¬β¬β£β¬ββββββββββββββββ // // β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬β ββββ£β£ββ¬β β¬β£β¬β£β¬β¬β¬β¬β¬β¬β©β©β©β¬β β βββ¬β¬β£β¬β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬βββββββββββββ¬β¬ // // βββ£ββ¬β£β¬β£β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β ββ£βββββββββ£β¬β£ββββ£β£β£β£ββ¬β¬β¬β¬β¬β β β β β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬β¬β£ββββββββββββββ¬ // // β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β’β¬β¬β¬βββ£ββ©β¬β β¬βββββββ£ββ«β¬β¬β¬β¬β£β¬β¬β¬β¬β¬β¬β¬β β β β¬β’β’β¬β’β¬β£β¬β£β¬β¬β¬β¬β¬β¬β¬β¬βββββββββββ£β¬β¬ // // β¬β¬ββ£β£β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β β¬βββ β¬β’β β β¬β¬β£ββββββββββ¬β¬βββββ¬β¬β¬β¬β£β¬β¬β¬β¬β¬β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£ββββββββββ¬β¬β¬ // // β«β¬β«β£β¬β¬β¬β¬β¬β¬βββββ¬β’ββββ β β β β β¬β£βββββββββββββββ¬β¬β¬β¬β¬β β βββββ¬β¬β¬β¬β¬β¬β¬β¬β¬β«β¬β¬β’β¬β¬β¬β£ββββββββββββ // // βββ¬β¬β¬β¬β¬β¬β β¬β¬β¬β¬β¬β¬β¬β£β¬β¬β£βββββ’βββββ¬β¬β¬β¬β¬β¬β¬βββ¬β£β¬β β β β ββββββββ£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬βββββ¬ββββββββ // // β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β β β¬β¬βββββ¬β¬ββ¬β£ββββββ£β¬β¬β¬β¬β£β£ββ¬β β βββββββββββ β¬β¬β£β¬β¬β β’β¬β¬ββββ¬β¬β«βββββ¬β¬β£βββββ // // β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬ββββ¬βββ£βββββ¬β£β¬β©ββ£βββββ¬β£β£β£β£βββ¬β¬β¬β¬β β βββ β β ββ β¬β£β£β£β£β¬ββββ¬β¬ββββ¬βββββββ¬β£β£β¬ββ // // β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β£β£β£β¬β«β¬β β¬β¬β¬β β β«βββ¬β¬β¬β ββββ¬β¬β¬β£β£ββββ¬β¬β¬β¬β¬β¬β¬β£β¬β£β¬β¬β¬β¬β¬β¬β£βββββββ β£ββ¬βββββ¬β¬ββ£β¬β¬β¬ // // ββββββββ£β¬β¬β£β¬β£β¬β£β¬β¬β¬β£β£βββββββββββ¬β¬ββββ¬β¬β¬β£β£ββββ¬β¬β β β¬β¬β¬β¬β¬β¬β¬β£ββ¬β¬β β¬β£ββββββββ¬ββββββββ£β¬β¬β¬ // // β£β¬β£β£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£β¬β¬ββ ββ¬β¬β©β¬β©ββββββββ¬ββββ¬β¬β¬β¬ββββββ¬β β β β β β β¬β¬βββββ£β¬β£ββββ¬β«β¬β£ββββββββββββ // // ββββββββββββββββββββββββββββββββββ¬β£ββ¬β¬β¬β¬β¬β£βββββ¬β β β β β β β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£βββββββββ¬β¬β£β¬ββββ // // ββββββββββββ¬β£ββ£ββ£β¬β¬ββββββββββββββββ£βββ¬β β¬β¬β’βββββ¬β¬β β β β β¬β¬ββ β¬β¬β¬β£ββββββββββββββββ£β¬β¬β¬β¬ // // βββββ¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β«βββββββββββββββββββ¬βββ β β β¬β£ββββ¬β¬β β β β β£βββββ¬β¬βββββββββββββββββββ¬β£β // // β¬β¬β¬β¬β¬β¬β£β£βββββββββ£β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β¬β£ββββββ¬βββ β β¬β¬ββββ¬β¬β β β β¬βββββ¬β¬β«βββββββββββββ¬ββββββββ // // ββββββββββββ¬β¬β¬β¬β¬β¬β¬β¬β£βββββββββββββββββ¬β’βββ ββ¬β£ββ¬β¬β β β β¬βββββ¬β¬β¬ββββββββββββββββ¬β¬ββ¬βββ // // βββββββββββ¬β¬β¬β¬β£β£βββββββ£β¬ββββββββββββββ£β£ββ¬β β’β£β¬β¬β¬β¬β£β£ββββββ¬β¬β¬ββββββββββββββββββ¬β¬β¬β¬β // // ββ¬β¬β¬β¬β¬β£β¬β¬β¬β¬β¬β£β£ββββββ¬β¬β¬ββ¬ββββββ£ββββββββ¬β¬βββ β¬β¬β¬β¬β¬β£ββββββββ¬β¬β¬β£ββββββββββ£βββββββββββ // // β¬β¬β¬β¬β¬β£ββββ¬β¬β£β£ββββ¬β¬β¬β£ββββ¬βββββ¬β«ββ£βββββ¬β¬β¬βββ β£β¬β£βββ¬β¬β¬ββββββ¬β’β¬β¬βββββββββββββββββββββ // // βββββββββ¬β¬β¬β£β£ββββ¬β¬β£β¬βββββββββ¬β’β£ββββββ¬β¬β£ββ¬β£βββββββ¬β£β¬ββββββ¬β¬β¬β¬β¬βββββββββββββββββββ // // ββββββββ¬β¬β¬β¬β£βββββ¬β¬β¬β¬ββββ’ββ¬ββββββββββ¬β£β¬β£ββ£βββ¬β¬β£β¬ββββ’β£βββββ¬β¬β¬β¬β¬β¬ββββββββββββββββββ // // ββββ£β¬β¬β¬β¬β¬β¬β£β£ββββββ£ββ¬ββββββββββββ£β¬β¬βββ¬β£ββββββ¬β β¬β¬β¬ββββ¬β¬βββββ¬β¬β¬β¬β¬ββββ¬β¬β¬ββββββββββββ // // βββ£β£ββ¬β¬β¬β¬β¬ββββββββ¬β£ββββββββ β¬β£ββββββ¬β£βββββ¬ββββ¬β¬β¬β¬β¬ββββ¬β¬β¬ββββ¬β¬β β β¬βββββ¬β£βββββββββββ // // ββββ¬β¬β¬β¬β¬β£β¬ββββββββ¬β£β¬ββββββββ¬β¬ββ¬ββββββββββββ¬βββ¬β¬β¬β¬β£ββββ¬β¬β¬βββββ¬β β ββββ β¬β£βββββββββββ // // β¬β’β¬β’β¬β¬β¬β¬βββββββββ£β£β¬β¬β£βββββββββββββββββββββ¬β¬β¬β¬βββ¬β¬β£βββββ¬β¬β¬βββββββββββ¬β’βββ¬ββββββββ // // β¬β¬β¬β¬β¬β¬β£ββββββββββ¬β£β£β¬ββ¬ββββββββββββββββββββββ¬ββ β¬βββ¬βββββββ¬β«β¬ββββββ β¬β¬β£β¬ββββββ¬β¬β¬βββ // // β¬β£β£β¬β£ββββββββββ¬β¬β£βββββββββ£ββββββββββ¬βββββββββββ β βββββ£ββββββ¬β’β£ββββββ β β£ββ¬β¬β¬βββ¬β¬β¬β¬β¬ // // β£β£β£β£βββββββββββ£ββββ¬βββββ¬βββ¬βββββ¬β£βββββ¬β¬ββββββ«ββββ£β¬ββββ£ββββββββββββββ β¬ββββ¬βββββ¬ββ // // β£βββββββββββββ¬β£βββββββ¬β¬β¬β£βββββββββββββ¬β¬β«ββββ¬βββββββββββ£βββββββββββ¬β¬β¬β£ββ¬β¬β¬β β¬β¬β¬βββ // // ββββββββββββ£β£βββ£β¬β£ββββ¬βββββββ£βββ¬β£ββββββββββββββββββββββ¬β£ββββββββ β¬β¬β¬β¬βββββββββββ¬β¬ // // ββββββββ£β£β£β¬β¬β¬β¬β¬β¬βββββββββββββββ¬βββββββ£ββββββββββββββββββ£βββ¬βββββ β β β βββ¬β¬β¬β¬β¬ββββββ¬ // // ββββββ¬β£β£β£β£ββ£β¬β£βββββββββββββ¬β«β£ββββ£ββββ¬β β¬βββββ¬β¬β¬βββ¬βββββββββββββββββββββ¬ββββ¬βββ¬β¬β¬β // // βββββββββββββββββββββββββββββββββββ©ββββββ©ββββββββββββββββββββββββββββββββββββ©ββ©β // // // // --- // // // // // //////////////////////////////////////////////////////////////////////////////////////////////// contract PPP is ERC721Creator { constructor() ERC721Creator("PREREQUISITE PORTRAITS", "PPP") {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @author: manifold.xyz import "@openzeppelin/contracts/proxy/Proxy.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/utils/StorageSlot.sol"; contract ERC721Creator is Proxy { constructor(string memory name, string memory symbol) { assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6; (bool success, ) = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6.delegatecall(abi.encodeWithSignature("initialize(string,string)", name, symbol)); require(success, "Initialization failed"); } /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Returns the current implementation address. */ function implementation() public view returns (address) { return _implementation(); } function _implementation() internal override view returns (address) { return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol) pragma solidity ^0.8.0; /** * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function * and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _fallback() internal virtual { _beforeFallback(); _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback() external payable virtual { _fallback(); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data * is empty. */ receive() external payable virtual { _fallback(); } /** * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` * call, or as part of the Solidity `fallback` or `receive` functions. * * If overridden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual {} }
// 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 (last updated v4.9.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.0; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._ * _Available since v4.9 for `string`, `bytes`._ */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } }
{ "remappings": [ "@openzeppelin/=node_modules/@openzeppelin/" ], "optimizer": { "enabled": true, "runs": 300 }, "metadata": { "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} }
Contract Security Audit
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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Deployed Bytecode
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