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Latest 25 from a total of 59 transactions
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Settle Current A... | 19842397 | 104 days ago | IN | 0 ETH | 0.00147671 | ||||
Create Bid | 19839968 | 104 days ago | IN | 0.03 ETH | 0.00040081 | ||||
Settle Current A... | 19833008 | 105 days ago | IN | 0 ETH | 0.00124161 | ||||
Create Bid | 19823960 | 107 days ago | IN | 0.03 ETH | 0.00032017 | ||||
Settle Current A... | 19823629 | 107 days ago | IN | 0 ETH | 0.00091453 | ||||
Create Bid | 19816853 | 107 days ago | IN | 0.03 ETH | 0.00042745 | ||||
Settle Current A... | 19813779 | 108 days ago | IN | 0 ETH | 0.00140011 | ||||
Create Bid | 19806562 | 109 days ago | IN | 0.03 ETH | 0.00027816 | ||||
Settle Current A... | 19806543 | 109 days ago | IN | 0 ETH | 0.00100803 | ||||
Settle Current A... | 18581346 | 281 days ago | IN | 0 ETH | 0.00757031 | ||||
Create Bid | 18468611 | 297 days ago | IN | 0.03 ETH | 0.00103049 | ||||
Settle Current A... | 18468607 | 297 days ago | IN | 0 ETH | 0.00312629 | ||||
Settle Current A... | 18322062 | 317 days ago | IN | 0 ETH | 0.0033769 | ||||
Create Bid | 18314821 | 318 days ago | IN | 0.03 ETH | 0.0005789 | ||||
Settle Current A... | 18314786 | 318 days ago | IN | 0 ETH | 0.00171986 | ||||
Settle Current A... | 18295027 | 321 days ago | IN | 0 ETH | 0.00131304 | ||||
Create Bid | 18286698 | 322 days ago | IN | 0.03 ETH | 0.00066505 | ||||
Settle Current A... | 18286696 | 322 days ago | IN | 0 ETH | 0.00276509 | ||||
Create Bid | 18273271 | 324 days ago | IN | 0.03 ETH | 0.00052399 | ||||
Settle Current A... | 18273268 | 324 days ago | IN | 0 ETH | 0.00147004 | ||||
Settle Current A... | 18265950 | 325 days ago | IN | 0 ETH | 0.00367275 | ||||
Create Bid | 18254643 | 326 days ago | IN | 0.03 ETH | 0.00040293 | ||||
Settle Current A... | 18254640 | 326 days ago | IN | 0 ETH | 0.00172643 | ||||
Create Bid | 18250634 | 327 days ago | IN | 0.033 ETH | 0.00033309 | ||||
Create Bid | 18243489 | 328 days ago | IN | 0.03 ETH | 0.00057088 |
Latest 25 internal transactions (View All)
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19842397 | 104 days ago | 0.03 ETH | ||||
19833008 | 105 days ago | 0.03 ETH | ||||
19823629 | 107 days ago | 0.03 ETH | ||||
19813779 | 108 days ago | 0.03 ETH | ||||
18581346 | 281 days ago | 0.03 ETH | ||||
18322062 | 317 days ago | 0.03 ETH | ||||
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18286696 | 322 days ago | 0.03 ETH | ||||
18265950 | 325 days ago | 0.03 ETH | ||||
18254640 | 326 days ago | 0.03 ETH | ||||
18243484 | 328 days ago | 0.0363 ETH | ||||
18243296 | 328 days ago | 0.033 ETH | ||||
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18236162 | 329 days ago | 0.067 ETH | ||||
18236125 | 329 days ago | 0.0605 ETH | ||||
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18228955 | 330 days ago | 0.033 ETH | ||||
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18079635 | 351 days ago | 0.03 ETH | ||||
17927339 | 372 days ago | 0.03 ETH | ||||
17293159 | 461 days ago | 0.03 ETH | ||||
17244469 | 468 days ago | 0.03 ETH |
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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0xCaa5c759...0Ea10C1AF The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
ERC1967Proxy
Compiler Version
v0.8.16+commit.07a7930e
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2023-01-05 */ // SPDX-License-Identifier: MIT pragma solidity 0.8.16; // OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol) /** * @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 {} } /// @title IERC1967Upgrade /// @author Rohan Kulkarni /// @notice The external ERC1967Upgrade events and errors interface IERC1967Upgrade { /// /// /// EVENTS /// /// /// /// @notice Emitted when the implementation is upgraded /// @param impl The address of the implementation event Upgraded(address impl); /// /// /// ERRORS /// /// /// /// @dev Reverts if an implementation is an invalid upgrade /// @param impl The address of the invalid implementation error INVALID_UPGRADE(address impl); /// @dev Reverts if an implementation upgrade is not stored at the storage slot of the original error UNSUPPORTED_UUID(); /// @dev Reverts if an implementation does not support ERC1822 proxiableUUID() error ONLY_UUPS(); } // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); } // OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol) /** * @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) { /// @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 } } } /// @title EIP712 /// @author Rohan Kulkarni /// @notice Modified from OpenZeppelin Contracts v4.7.3 (utils/Address.sol) /// - Uses custom errors `INVALID_TARGET()` & `DELEGATE_CALL_FAILED()` /// - Adds util converting address to bytes32 library Address { /// /// /// ERRORS /// /// /// /// @dev Reverts if the target of a delegatecall is not a contract error INVALID_TARGET(); /// @dev Reverts if a delegatecall has failed error DELEGATE_CALL_FAILED(); /// /// /// FUNCTIONS /// /// /// /// @dev Utility to convert an address to bytes32 function toBytes32(address _account) internal pure returns (bytes32) { return bytes32(uint256(uint160(_account)) << 96); } /// @dev If an address is a contract function isContract(address _account) internal view returns (bool rv) { assembly { rv := gt(extcodesize(_account), 0) } } /// @dev Performs a delegatecall on an address function functionDelegateCall(address _target, bytes memory _data) internal returns (bytes memory) { if (!isContract(_target)) revert INVALID_TARGET(); (bool success, bytes memory returndata) = _target.delegatecall(_data); return verifyCallResult(success, returndata); } /// @dev Verifies a delegatecall was successful function verifyCallResult(bool _success, bytes memory _returndata) internal pure returns (bytes memory) { if (_success) { return _returndata; } else { if (_returndata.length > 0) { assembly { let returndata_size := mload(_returndata) revert(add(32, _returndata), returndata_size) } } else { revert DELEGATE_CALL_FAILED(); } } } } /// @title ERC1967Upgrade /// @author Rohan Kulkarni /// @notice Modified from OpenZeppelin Contracts v4.7.3 (proxy/ERC1967/ERC1967Upgrade.sol) /// - Uses custom errors declared in IERC1967Upgrade /// - Removes ERC1967 admin and beacon support abstract contract ERC1967Upgrade is IERC1967Upgrade { /// /// /// CONSTANTS /// /// /// /// @dev bytes32(uint256(keccak256('eip1967.proxy.rollback')) - 1) bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /// @dev bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1) bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /// /// /// FUNCTIONS /// /// /// /// @dev Upgrades to an implementation with security checks for UUPS proxies and an additional function call /// @param _newImpl The new implementation address /// @param _data The encoded function call function _upgradeToAndCallUUPS( address _newImpl, bytes memory _data, bool _forceCall ) internal { if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(_newImpl); } else { try IERC1822Proxiable(_newImpl).proxiableUUID() returns (bytes32 slot) { if (slot != _IMPLEMENTATION_SLOT) revert UNSUPPORTED_UUID(); } catch { revert ONLY_UUPS(); } _upgradeToAndCall(_newImpl, _data, _forceCall); } } /// @dev Upgrades to an implementation with an additional function call /// @param _newImpl The new implementation address /// @param _data The encoded function call function _upgradeToAndCall( address _newImpl, bytes memory _data, bool _forceCall ) internal { _upgradeTo(_newImpl); if (_data.length > 0 || _forceCall) { Address.functionDelegateCall(_newImpl, _data); } } /// @dev Performs an implementation upgrade /// @param _newImpl The new implementation address function _upgradeTo(address _newImpl) internal { _setImplementation(_newImpl); emit Upgraded(_newImpl); } /// @dev Stores the address of an implementation /// @param _impl The implementation address function _setImplementation(address _impl) private { if (!Address.isContract(_impl)) revert INVALID_UPGRADE(_impl); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = _impl; } /// @dev The address of the current implementation function _getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; } } /// @title ERC1967Proxy /// @author Rohan Kulkarni /// @notice Modified from OpenZeppelin Contracts v4.7.3 (proxy/ERC1967/ERC1967Proxy.sol) /// - Inherits a modern, minimal ERC1967Upgrade contract ERC1967Proxy is IERC1967Upgrade, Proxy, ERC1967Upgrade { /// /// /// CONSTRUCTOR /// /// /// /// @dev Initializes the proxy with an implementation contract and encoded function call /// @param _logic The implementation address /// @param _data The encoded function call constructor(address _logic, bytes memory _data) payable { _upgradeToAndCall(_logic, _data, false); } /// /// /// FUNCTIONS /// /// /// /// @dev The address of the current implementation function _implementation() internal view virtual override returns (address) { return ERC1967Upgrade._getImplementation(); } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"DELEGATE_CALL_FAILED","type":"error"},{"inputs":[],"name":"INVALID_TARGET","type":"error"},{"inputs":[{"internalType":"address","name":"impl","type":"address"}],"name":"INVALID_UPGRADE","type":"error"},{"inputs":[],"name":"ONLY_UUPS","type":"error"},{"inputs":[],"name":"UNSUPPORTED_UUID","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"impl","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]
Deployed Bytecode
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Deployed Bytecode Sourcemap
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Swarm Source
ipfs://dc4d3f0096ef746736792d21828a33955017294e8f127fdabcf6bf06082a5014
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