OP Sepolia Testnet

Contract

0x1111AbA2164AcdC6D291b08DfB374280035E1111

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Request Update357453522025-11-16 11:40:4426 secs ago1763293244IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357447892025-11-16 11:21:5819 mins ago1763292118IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357441132025-11-16 10:59:2641 mins ago1763290766IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357423802025-11-16 10:01:401 hr ago1763287300IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357406472025-11-16 9:03:542 hrs ago1763283834IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357389132025-11-16 8:06:063 hrs ago1763280366IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357371812025-11-16 7:08:224 hrs ago1763276902IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357354462025-11-16 6:10:325 hrs ago1763273432IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357337112025-11-16 5:12:426 hrs ago1763269962IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357335542025-11-16 5:07:286 hrs ago1763269648IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357325402025-11-16 4:33:407 hrs ago1763267620IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357320002025-11-16 4:15:407 hrs ago1763266540IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357302662025-11-16 3:17:528 hrs ago1763263072IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357302212025-11-16 3:16:228 hrs ago1763262982IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357288032025-11-16 2:29:069 hrs ago1763260146IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357285312025-11-16 2:20:029 hrs ago1763259602IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357278562025-11-16 1:57:329 hrs ago1763258252IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357273162025-11-16 1:39:3210 hrs ago1763257172IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357268202025-11-16 1:23:0010 hrs ago1763256180IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357258512025-11-16 0:50:4210 hrs ago1763254242IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357252872025-11-16 0:31:5411 hrs ago1763253114IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
Request Update357250612025-11-16 0:24:2211 hrs ago1763252662IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357233282025-11-15 23:26:3612 hrs ago1763249196IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357215722025-11-15 22:28:0413 hrs ago1763245684IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002741270.00100025
Request Update357201992025-11-15 21:42:1813 hrs ago1763242938IN
0x1111AbA2...0035E1111
0.000000183961039 ETH0.0000002758850.00100025
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Latest 25 internal transactions (View All)

Parent Transaction Hash Block From To Amount
357453522025-11-16 11:40:4426 secs ago1763293244
0x1111AbA2...0035E1111
0.000000183961039 ETH
357447892025-11-16 11:21:5819 mins ago1763292118
0x1111AbA2...0035E1111
0.000000183961039 ETH
357441132025-11-16 10:59:2641 mins ago1763290766
0x1111AbA2...0035E1111
0.000000183961039 ETH
357423802025-11-16 10:01:401 hr ago1763287300
0x1111AbA2...0035E1111
0.000000183961039 ETH
357406472025-11-16 9:03:542 hrs ago1763283834
0x1111AbA2...0035E1111
0.000000183961039 ETH
357389132025-11-16 8:06:063 hrs ago1763280366
0x1111AbA2...0035E1111
0.000000183961039 ETH
357371812025-11-16 7:08:224 hrs ago1763276902
0x1111AbA2...0035E1111
0.000000183961039 ETH
357354462025-11-16 6:10:325 hrs ago1763273432
0x1111AbA2...0035E1111
0.000000183961039 ETH
357337112025-11-16 5:12:426 hrs ago1763269962
0x1111AbA2...0035E1111
0.000000183961039 ETH
357335542025-11-16 5:07:286 hrs ago1763269648
0x1111AbA2...0035E1111
0.000000183961039 ETH
357325402025-11-16 4:33:407 hrs ago1763267620
0x1111AbA2...0035E1111
0.000000183961039 ETH
357320002025-11-16 4:15:407 hrs ago1763266540
0x1111AbA2...0035E1111
0.000000183961039 ETH
357302662025-11-16 3:17:528 hrs ago1763263072
0x1111AbA2...0035E1111
0.000000183961039 ETH
357302212025-11-16 3:16:228 hrs ago1763262982
0x1111AbA2...0035E1111
0.000000183961039 ETH
357288032025-11-16 2:29:069 hrs ago1763260146
0x1111AbA2...0035E1111
0.000000183961039 ETH
357285312025-11-16 2:20:029 hrs ago1763259602
0x1111AbA2...0035E1111
0.000000183961039 ETH
357278562025-11-16 1:57:329 hrs ago1763258252
0x1111AbA2...0035E1111
0.000000183961039 ETH
357273162025-11-16 1:39:3210 hrs ago1763257172
0x1111AbA2...0035E1111
0.000000183961039 ETH
357268202025-11-16 1:23:0010 hrs ago1763256180
0x1111AbA2...0035E1111
0.000000183961039 ETH
357258512025-11-16 0:50:4210 hrs ago1763254242
0x1111AbA2...0035E1111
0.000000183961039 ETH
357252872025-11-16 0:31:5411 hrs ago1763253114
0x1111AbA2...0035E1111
0.000000183961039 ETH
357250612025-11-16 0:24:2211 hrs ago1763252662
0x1111AbA2...0035E1111
0.000000183961039 ETH
357233282025-11-15 23:26:3612 hrs ago1763249196
0x1111AbA2...0035E1111
0.000000183961039 ETH
357215722025-11-15 22:28:0413 hrs ago1763245684
0x1111AbA2...0035E1111
0.000000183961039 ETH
357201992025-11-15 21:42:1813 hrs ago1763242938
0x1111AbA2...0035E1111
0.000000183961039 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x77703aE1...71dA00777
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
WitnetProxy

Compiler Version
v0.8.22+commit.4fc1097e

Optimization Enabled:
Yes with 200 runs

Other Settings:
paris EvmVersion

Contract Source Code (Solidity Standard Json-Input format)

// SPDX-License-Identifier: MIT

pragma solidity >=0.7.0 <0.9.0;
pragma experimental ABIEncoderV2;

import "../patterns/Upgradeable.sol";

/// @title WitnetProxy: upgradable delegate-proxy contract. 
/// @author Guillermo Díaz <[email protected]>
contract WitnetProxy {

    /// Event emitted every time the implementation gets updated.
    event Upgraded(address indexed implementation);  

    /// Constructor with no params as to ease eventual support of Singleton pattern (i.e. ERC-2470).
    constructor () {}

    receive() virtual external payable {}

    /// Payable fallback accepts delegating calls to payable functions.  
    fallback() external payable { /* solhint-disable no-complex-fallback */
        address _implementation = implementation();
        assembly { /* solhint-disable avoid-low-level-calls */
            // Gas optimized delegate call to 'implementation' contract.
            // Note: `msg.data`, `msg.sender` and `msg.value` will be passed over 
            //       to actual implementation of `msg.sig` within `implementation` contract.
            let ptr := mload(0x40)
            calldatacopy(ptr, 0, calldatasize())
            let result := delegatecall(gas(), _implementation, ptr, calldatasize(), 0, 0)
            let size := returndatasize()
            returndatacopy(ptr, 0, size)
            switch result
                case 0  { 
                    // pass back revert message:
                    revert(ptr, size) 
                }
                default {
                  // pass back same data as returned by 'implementation' contract:
                  return(ptr, size) 
                }
        }
    }

    /// Returns proxy's current implementation address.
    function implementation() public view returns (address) {
        return __proxySlot().implementation;
    }

    /// Upgrades the `implementation` address.
    /// @param _newImplementation New implementation address.
    /// @param _initData Raw data with which new implementation will be initialized.
    /// @return Returns whether new implementation would be further upgradable, or not.
    function upgradeTo(address _newImplementation, bytes memory _initData)
        public returns (bool)
    {
        // New implementation cannot be null:
        require(_newImplementation != address(0), "WitnetProxy: null implementation");

        address _oldImplementation = implementation();
        if (_oldImplementation != address(0)) {
            // New implementation address must differ from current one:
            require(_newImplementation != _oldImplementation, "WitnetProxy: nothing to upgrade");

            // Assert whether current implementation is intrinsically upgradable:
            try Upgradeable(_oldImplementation).isUpgradable() returns (bool _isUpgradable) {
                require(_isUpgradable, "WitnetProxy: not upgradable");
            } catch {
                revert("WitnetProxy: unable to check upgradability");
            }

            // Assert whether current implementation allows `msg.sender` to upgrade the proxy:
            (bool _wasCalled, bytes memory _result) = _oldImplementation.delegatecall(
                abi.encodeWithSignature(
                    "isUpgradableFrom(address)",
                    msg.sender
                )
            );
            require(_wasCalled, "WitnetProxy: uncompliant implementation");
            require(abi.decode(_result, (bool)), "WitnetProxy: not authorized");
            require(
                Upgradeable(_oldImplementation).proxiableUUID() == Upgradeable(_newImplementation).proxiableUUID(),
                "WitnetProxy: proxiableUUIDs mismatch"
            );
        }

        // Initialize new implementation within proxy-context storage:
        (bool _wasInitialized, bytes memory _returnData) = _newImplementation.delegatecall(
            abi.encodeWithSignature(
                "initialize(bytes)",
                _initData
            )
        );
        if (!_wasInitialized) {
            if (_returnData.length < 68) {
                revert("WitnetProxy: initialization failed");
            } else {
                assembly {
                    _returnData := add(_returnData, 0x04)
                }
                revert(abi.decode(_returnData, (string)));
            }
        }

        // If all checks and initialization pass, update implementation address:
        __proxySlot().implementation = _newImplementation;
    
        emit Upgraded(_newImplementation);

        // Asserts new implementation complies w/ minimal implementation of Upgradeable interface:
        try Upgradeable(_newImplementation).isUpgradable() returns (bool _isUpgradable) {
            return _isUpgradable;
        }
        catch {
            revert ("WitnetProxy: uncompliant implementation");
        }
    }

    /// @dev Complying with EIP-1967, retrieves storage struct containing proxy's current implementation address.
    function __proxySlot() private pure returns (Proxiable.ProxiableSlot storage _slot) {
        assembly {
            // bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
            _slot.slot := 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc
        }
    }

}

// SPDX-License-Identifier: MIT

/* solhint-disable var-name-mixedcase */

pragma solidity >=0.6.0 <0.9.0;

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";

import "./Initializable.sol";
import "./Proxiable.sol";

abstract contract Upgradeable is Initializable, Proxiable {

    address internal immutable _BASE;
    bytes32 internal immutable _CODEHASH;
    bool internal immutable _UPGRADABLE;

    modifier onlyDelegateCalls virtual {
        require(
            address(this) != _BASE,
            "Upgradeable: not a delegate call"
        );
        _;
    }

    /// Emitted every time the contract gets upgraded.
    /// @param from The address who ordered the upgrading. Namely, the WRB operator in "trustable" implementations.
    /// @param baseAddr The address of the new implementation contract.
    /// @param baseCodehash The EVM-codehash of the new implementation contract.
    /// @param versionTag Ascii-encoded version literal with which the implementation deployer decided to tag it.
    event Upgraded(
        address indexed from,
        address indexed baseAddr,
        bytes32 indexed baseCodehash,
        string  versionTag
    );

    constructor (bool _isUpgradable) {
        address _base = address(this);
        _BASE = _base;
        _UPGRADABLE = _isUpgradable;
    }

    /// @dev Retrieves base contract. Differs from address(this) when called via delegate-proxy pattern.
    function base() public view returns (address) {
        return _BASE;
    }

    /// @dev Retrieves the immutable codehash of this contract, even if invoked as delegatecall.
    function codehash() public view returns (bytes32 _codehash) {
        address _base = _BASE;
        assembly {
            _codehash := extcodehash(_base)
        }
    }

    /// @dev Determines whether the logic of this contract is potentially upgradable.
    function isUpgradable() public view returns (bool) {
        return _UPGRADABLE;
    }

    /// @dev Tells whether provided address could eventually upgrade the contract.
    function isUpgradableFrom(address from) virtual external view returns (bool);

    /// @notice Re-initialize contract's storage context upon a new upgrade from a proxy.    
    /// @dev Must fail when trying to upgrade to same logic contract more than once.
    function initialize(bytes memory) virtual external;

    /// @dev Retrieves human-redable named version of current implementation.
    function version() virtual public view returns (string memory); 
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.9.0;

abstract contract Proxiable {
    /// @dev Complying with EIP-1822: Universal Upgradeable Proxy Standard (UUPS)
    /// @dev See https://eips.ethereum.org/EIPS/eip-1822.
    function proxiableUUID() virtual external view returns (bytes32);

    struct ProxiableSlot {
        address implementation;
        address proxy;
        bytes32 codehash;
    }

    function __implementation() internal view returns (address) {
        return __proxiable().implementation;
    }

    function __proxy() internal view returns (address) {
        return __proxiable().proxy;
    }

    function __proxiable() internal pure returns (ProxiableSlot storage proxiable) {
        assembly {
            // bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
            proxiable.slot := 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc
        }
    }
}

File 4 of 7 : Initializable.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./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);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract ABI

API
[{"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":"_initData","type":"bytes"}],"name":"upgradeTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Deployed Bytecode

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Transaction Hash Block Value Eth2 PubKey Valid
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0x1111AbA2164AcdC6D291b08DfB374280035E1111
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.