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ERC-721
Overview
Max Total Supply
68 IDK
Holders
68
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
BuZhiDAO
Compiler Version
v0.8.12+commit.f00d7308
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2022-07-12 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.9; ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // // // // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWNNXK00OkkxxdddoooooooooooooddddxxkkOO0KXNNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWNXK0OkxddooooooooooooooooooooooooooooooooooooddxkO0KXNWWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWNXKOkxdoooooooooooooooooooooooooooooooooooooooooooooooooodxkO0XNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWNX0kxdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodxO0XNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWX0kxdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodxk0XWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNX0kdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodk0XWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMWWWWXOxdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodk0XWWMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMWWX0kdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodk0NWMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMWXOdooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooxOXWMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMWMMWKkdoooooooooooooooooxkkOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOkkxoooooooooooooooooooooodkKNMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMWWKkoooooooooooooooooood0WWMMMMMMMMMMMMMMMMMWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWMWWNKOdooooooooooooooooooooodkKWWMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMWWKkooooooooooooooooooooooxKWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWMMWXkoooooooooooooooooooooodkKWWMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMWWXkdoooooooooooooooooooooooodOXWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWXkooooooooooooooooooooooodkXWMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMWWNOdoooooooooooooooooooooooooooodk0KKXXXXXXXXXXXXXXXXXNWMMMMMMMMWNXXXXXXXXXXXXXXXXXXXXXXXXXKOooooooooooooooooooooooooodONWMMMMMMMMMMMMMM // // MMMMMMMMMMMMWWKxooooooooooooooooooooooooooooooooooooooooooooooodoodd0WWWMMMMMWW0doooooooooooooooooooooooooooooooooooooooooooooooooooooxKWMMMMMMMMMMMMM // // MMMMMMMMMMMWXOdooooooooooooooooooooooooooooooooooooooooooooooooooodONMMMMMMMMMW0doooooooooooooooooooooooooooooooooooooooooooooooooooooodONWMMMMMMMMMMM // // MMMMMMMMMMWKxoooooooooooooooooooooooooooooooooooooooooooooooooooodONWMMMMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooxKWMMMMMMMMMM // // MMMMMMMMWW0xoooooooooooooooooooooooooooooooooooooooooooooooooooox0WWMMMMMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMMMM // // MMMMMMMWN0dooooooooooooooooooooooooooooooooooooooooooooooooooodOXWMMMMMMMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooood0NWMMMMMMM // // MMMMMMWNOdoooooooooooooooooooooooooooooooooooooooooooooooooodOXWWWMMMMMMMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodONMMMMMMM // // MMMMMWNOdoooooooooooooooooooooooooooooooooooooooooooooooodx0XWMMWWMMWWMMMMMMMMW0ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooONMMMMMM // // MMMMWNOoooooooooooooooooooooooooooooooooooooooooooooodxk0XWWMMMMMWWWXKXMMMMMMMW0oooooooooooooooooooooodooooooooooooooooooooooooooooooooooooooodONMMMMM // // MMMMW0dooooooooooooooooooooooooooooooooooooddoddxkkO0XNWMMMMMMMMWWX0xdKWMMMMMMW0ooooooooooooooooodO0KXK0kdoooooooooooooooooooooooooooooooooooood0WMMMM // // MMMW0doooooooooooooooooooooooooooooooooooodOXXXNNWWMMMMMMMMMMMMNKOdoodKWMMMMMMW0ooooooooooooooookXWWWMMMWKxooooooooooooooooooooooooooooooooooooodKWMMM // // MMWXxooooooooooooooooooooooooooooooooooooodKWMMMMMMMMMMMMMWWNX0xdoooodKWMMMMMMW0oooooooooooooood0WMWWMMMMW0doooooooooooooooooooooooooooooooooooooxXMMM // // MMNkoooooooooooooooooooooooooooooooooooooodKWMMMMMMMMMWWNX0kxdooooooodKWMMMMMMW0ooooooooooooooodOWMMMMMMWNOoooooooooooooooooooooooooooooooooooooookNWM // // WW0dooooooooooooooooooooooooooooooooooooood0WWWWWNXXK0OkxdooooooooooodKWMMMMMMW0oooooooooooooooodOXWWWWNKkdoooooooooooooooooooooooooooooooooooooood0WW // // WXxooooooooooooooooooooooooooooooooooooooooxOkkkxxddooooooooooooooooodKWMMMMMMW0oooooooooooooooooodxkOkxdooooooooooooooooooooooooooooooooooooooooooxXW // // W0ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood0W // // XkooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMW0ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooookX // // KdooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodK // // OoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooO // // xoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooONWMMMMMW0ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooox // // dooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWWMWWWW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood // // doooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodkKNWWWW0oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood // // ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodxkO00koooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo // // oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo // // oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooolooooooooooooooooooooooooooooooooooooooooooo // // oooooooooooooooooooooooooooooooooooooooooooxxxxxxxxdoooooooooooooooooodxxdooooooooooooooooooooooooxxxkkxxxdooooooooooooooooooooooooooooooooooooooooooo // // ooooooooooooooooooooooooooooooooooooooooood0NNWWWWNOoooooooooooooooood0NNX0Okdoooooooooooooooooood0NWWWWWW0ooooooooooooooooooooooooooooooooooooooooooo // // doooooooooooooooooooooooooooooooooooooooood0WMMMMWWKdoooooooooooooooodKWMMMWWKxooooooooooooooooooxKWWMMMMWOooooooooooooooooooooooooooooooooooooooooood // // xooooooooooooooooooooooooooooooooooooooooooOWMMMMMWXxoooooooooooooooodKWMMMMMWXxoooooooooooooooookNWMMMMMNkoooooooooooooooooooooooooooooooooooooooooox // // kooooooooooooooooooooooooooooooooooooooooooxXWMMMMMW0dooooooooooooooodKWMMMMMMW0doooooooooooooooxKWMMMMMWKdooooooooooooooooooooooooooooooooooooooooook // // 0doooooooooooooooooooooooooooooooooooooooooo0WMMMMMMNOooooooooooooooodKWMMMMMWW0dooooooooooooood0WMMMMWWNkooooooooooooooooooooooooooooooooooooooooood0 // // XxoooooooooooooooooooooooooooooooooooooooooodKWMMMMMMNOooooooooooooood0WMMMMMMWKdoooooooooooood0WMMMMMWW0dooooooooooooooooooooooooooooooooooooooooooxX // // NOoooooooooooooooooooooooooooooooooooooooooooxXWMMMMMMN0xoooooooooooodKWMMMMMMWKdooooooooooooxKWMMMMMMW0doooooooooooooooooooooooooooooooooooooooooooON // // WKdoooooooooooooooooooooooooooooooooooooooooooxKWMMMMMMWXkdoooooooooodKWMMMMMMWKdoooooooooodOXWMMMMMMWKdooooooooooooooooooooooooooooooooooooooooooodKW // // MNOoooooooooooooooooooooooooooooooooooooooooooodKWWMMMMMWWKOdoooooooodKWMMMMMMW0dooooooooxOXWWMMMMMWN0dooooooooooooooooooooooooooooooooooooooooooooONM // // MWXxoooooooooooooooooooooooooooooooooooooooooooodOXWWWWWMMMWN0kdoooood0WMMMMMMW0doooooxOKNWMMMMMMMWXkdooooooooooooooooooooooooooooooooooooooooooooxXWM // // MMW0oooooooooooooooooooooooooooooooooooooooooooooox0NWWMMMWWMWWNKOkxddKWMMMMMMWKxdxO0KNWMMMMMMMMWXOdoooooooooooooooooooooooooooooooooooooooooooood0WMM // // MMMNkdoooooooooooooooooooooooooooooooooooooooooooooox0NWMMMWWWWMMMWWNNNWMMMWMMMWNNWWMMMMMMMMMMWXOdoooooooooooooooooooooooooooooooooooooooooooooooONWMM // // MMMWXkoooooooooooooooooooooooooooooooooooooooooooooooodOKNWWMMMMMMMMMMMMMMMMMMMMMWMMMMMMMMMWNKkdooooooooooooooooooooooooooooooooooooooooooooooookXWMMM // // MMMMWXxooooooooooooooooooooooooooooooooooooooooooooooooooxO0XWWMMMMMMMMMMMMMMMMMMMMMMMMWNX0kdooooooooooooooooooooooooooooooooooooooooooooooooooxXWMMMM // // MMMMMWKxoooooooooooooooooooooooooooooooooooooooooooooooooooodkO0KXNWWWMMMMMMMMMMWWNNXK0OxdooooooooooooooooooooooooooooooooooooooooooooooooooooxKWMMMMM // // MMMMMMWKxoooooooooooooooooooooooooooooooooooooooooooooooooooooooodxkkOXWMMMMMMWXOkxxdooooooooooooooooooooooooooooooooooooooooooooooooooooooooxKWMMMMMM // // MMMMMMMWXxoooooooooooooooooooooooooooooooooooooooooooooooooooooooooood0WMMMMMMW0doooooooooooooooooooooooooooooooooooooooooooooooooooooooooooxXWWMMMMMM // // MMMMMMMMWXkoooooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMW0dooooooooooooooooooooooooooooooooooooooooooooooooooooooooookXWMMMMMMMM // // MMMMMMMMMWNOdoooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMW0doooooooooooooooooooooooooooooooooooooooooooooooooooooooodONWMMMMMMMMM // // MMMMMMMMMMWW0dooooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMWKdooooooooooooooooooooooooooooooooooooooooooooooooooooooox0WMMMMMMMMMMM // // MMMMMMMMMMMMWXkdooooooooooooooooooooooooooooooooooooooooooooooooooooodKWMMMMMMM0dooooooooooooooooooooooooooooooooooooooooooooooooooooookXWMMMMMMMMMMMM // // MMMMMMMMMMMMMWN0xoooooooooooooooooooooooooooooodxkkOOOOOOOOOOOOkOOkOOOXWMMMMMMMXOOOOOOOOOOOOOOOOOOOOOOOOOkxoooooooooooooooooooooooooox0NMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMWXOdooooooooooooooooooooooooooxOXNWWMMMMMMMMMMMMMWMMMMMMMMMMMMMMWWMMMMMMMMMMMMMMMMMMMMMMWWNOdooooooooooooooooooooooodOXWMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMWWKkdoooooooooooooooooooooodkXWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWKdoooooooooooooooooooooodkKWMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMNKkoooooooooooooooooooookNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWXOdooooooooooooooooooooodkKNMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMNKkdooooooooooooooooodOXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXKOkdooooooooooooooooooooodkKNMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMWNKOdooooooooooooooooodddooooooooooooooooooooooooooooooooooooooooooooooooodooooolooooooooooooooooooooxOKWMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMWX0xdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodx0XWMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMWNKOxooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooxOKNWMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWNKOxooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooxOKNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNKOxdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodxOKNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWWX0kxooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooodxk0XNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNX0OxdoooooooooooooooooooooooooooooooooooooooooooooooooooooooodxO0XNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNK0OkxdoooooooooooooooooooooooooooooooooooooooooooodxkO0KXWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNXK0OkkxddooooooooooooooooooooooooooooddxkkO0KXNWWWMWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWWWWWNXK0OkxxdddooooooooooooddxxkOO0KXNWWWMMMMMMWMWWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // // // // // // // ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// /** * @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: * * 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, and uint256._ */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } /** * @dev Returns an AddressSlot with member value located at slot. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { assembly { r.slot := slot } } /** * @dev Returns an BooleanSlot with member value located at slot. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { assembly { r.slot := slot } } /** * @dev Returns an Bytes32Slot with member value located at slot. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { assembly { r.slot := slot } } /** * @dev Returns an Uint256Slot with member value located at slot. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { assembly { r.slot := slot } } } /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if account is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, {isContract} will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's {transfer}: sends "amount" wei to * "recipient", forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by {transfer}, making them unable to receive funds via * {transfer}. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to "recipient", care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level "call". A * plain "call" is an unsafe replacement for a function call: use this * function instead. * * If "target" reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[abi.decode]. * * Requirements: * * - "target" must be a contract. * - calling "target" with "data" must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall], but with * "errorMessage" as a fallback revert reason when "target" reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall], * but also transferring "value" wei to "target". * * Requirements: * * - the calling contract must have an ETH balance of at least "value". * - the called Solidity function must be {payable}. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[functionCallWithValue], but * with "errorMessage" as a fallback revert reason when "target" reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[functionCall], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[functionCall], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /** * @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 internall 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 overriden 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 internall 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 overriden should call super._beforeFallback(). */ function _beforeFallback() internal virtual {} } contract BuZhiDAO is Proxy { /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); constructor() { assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x452B0F1709A77E0500F5b164CF5B9f4BA896d910; emit Upgraded(0x452B0F1709A77E0500F5b164CF5B9f4BA896d910); Address.functionDelegateCall( 0x452B0F1709A77E0500F5b164CF5B9f4BA896d910, abi.encodeWithSignature( "init(bool[2],address[4],uint256[8],string[4],bytes[2])", [false,false], [0x0000000000000000000000000000000000000000,0x0000000000000000000000000000000000000000,0x0000000000000000000000000000000000000000,0x1BAAd9BFa20Eb279d2E3f3e859e3ae9ddE666c52], [500,0,0,0,0,10,1000,0], ["BuZhiDAO","IDK","ipfs://",""], [ hex"d2d145e57faab39e6571c286bf42409b15c1af9af6bccd121961afe6aa5c70ee72e3beb8fc94cc357800183f6d5b211c61a5565cc02daf5c351afde0b95654891b", hex"" ] ) ); } /** * @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; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function upgradeTo( address newImplementation, bytes memory data, bool forceCall, uint8 v, bytes32 r, bytes32 s ) external { require(msg.sender == 0x468D85305B9B7571E06929f2CdD944b30F7E0209); bytes32 base = keccak256(abi.encode(address(this), newImplementation)); bytes32 hash = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", base)); require(ecrecover(hash, v, r, s) == 0x1BAAd9BFa20Eb279d2E3f3e859e3ae9ddE666c52); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; if (data.length > 0 || forceCall) { Address.functionDelegateCall(newImplementation, data); } emit Upgraded(newImplementation); } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bool","name":"forceCall","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Deployed Bytecode
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