xDAI Price: $0.999982 (-0.01%)
Gas: 1.1 GWei

Contract

0xB87BE9f7196F2AE084Ca1DE6af5264292976e013

Overview

xDAI Balance

Gnosis Chain LogoGnosis Chain LogoGnosis Chain Logo0 xDAI

xDAI Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Emit Initiate Ch...252783612022-12-03 23:07:00871 days ago1670108820IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...251573692022-11-25 21:29:15879 days ago1669411755IN
0xB87BE9f7...92976e013
0 xDAI00
Clear Unremovabl...250531302022-11-19 7:55:35886 days ago1668844535IN
0xB87BE9f7...92976e013
0 xDAI0.000405312.5
Emit Initiate Ch...250363772022-11-18 6:13:05887 days ago1668751985IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...249153852022-11-09 15:29:45896 days ago1668007785IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...247943932022-10-30 15:23:30906 days ago1667143410IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...246734012022-10-20 20:37:20915 days ago1666298240IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...245524092022-10-11 13:05:15925 days ago1665493515IN
0xB87BE9f7...92976e013
0 xDAI00
Clear Unremovabl...244982192022-10-07 7:14:30929 days ago1665126870IN
0xB87BE9f7...92976e013
0 xDAI0.0015967510
Emit Initiate Ch...244314172022-10-02 9:27:35934 days ago1664702855IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...243104252022-09-23 18:32:30942 days ago1663957950IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...241894332022-09-15 3:07:50951 days ago1663211270IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...240684412022-09-06 19:06:50959 days ago1662491210IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...239474492022-08-29 16:11:10967 days ago1661789470IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...238264572022-08-22 8:12:25975 days ago1661155945IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...237054652022-08-15 4:48:30982 days ago1660538910IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...235844732022-08-08 2:51:05989 days ago1659927065IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...234634812022-08-01 2:45:05996 days ago1659321905IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...233424892022-07-25 1:49:201003 days ago1658713760IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...232214972022-07-17 20:50:551010 days ago1658091055IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...231005052022-07-10 19:45:351017 days ago1657482335IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...229795132022-07-03 17:31:351024 days ago1656869495IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...228585212022-06-26 14:05:101032 days ago1656252310IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...227375292022-06-19 6:09:451039 days ago1655618985IN
0xB87BE9f7...92976e013
0 xDAI00
Emit Initiate Ch...226165372022-06-12 5:05:451046 days ago1655010345IN
0xB87BE9f7...92976e013
0 xDAI00
View all transactions

View more zero value Internal Transactions in Advanced View mode

Loading...
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.5.10+commit.5a6ea5b1

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at gnosisscan.io on 2022-08-03
*/

pragma solidity 0.5.10;






contract UpgradeabilityAdmin {
    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @return The admin slot.
     */
    function _admin() internal view returns (address adm) {
        bytes32 slot = ADMIN_SLOT;
        assembly {
            adm := sload(slot)
        }
    }
}








/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
contract Proxy {
    /**
     * @dev Fallback function.
     * Implemented entirely in `_fallback`.
     */
    function () payable external {
        _fallback();
    }

    /**
     * @return The Address of the implementation.
     */
    function _implementation() internal view returns (address);

    /**
     * @dev Delegates execution to an implementation contract.
     * This is a low level function that doesn't return to its internal call site.
     * It will return to the external caller whatever the implementation returns.
     * @param implementation Address to delegate.
     */
    function _delegate(address implementation) internal {
        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 Function that is run as the first thing in the fallback function.
     * Can be redefined in derived contracts to add functionality.
     * Redefinitions must call super._willFallback().
     */
    function _willFallback() internal {
    }

    /**
     * @dev fallback implementation.
     * Extracted to enable manual triggering.
     */
    function _fallback() internal {
        _willFallback();
        _delegate(_implementation());
    }
}




/**
 * Utility library of inline functions on addresses
 *
 * Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/utils/Address.sol
 * This contract is copied here and renamed from the original to avoid clashes in the compiled artifacts
 * when the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the
 * build/artifacts folder) as well as the vanilla Address implementation from an openzeppelin version.
 */
library OpenZeppelinUpgradesAddress {
    /**
     * Returns whether the target address is a contract
     * @dev This function will return false if invoked during the constructor of a contract,
     * as the code is not actually created until after the constructor finishes.
     * @param account address of the account to check
     * @return whether the target address is a contract
     */
    function isContract(address account) internal view returns (bool) {
        uint256 size;
        // XXX Currently there is no better way to check if there is a contract in an address
        // than to check the size of the code at that address.
        // See https://ethereum.stackexchange.com/a/14016/36603
        // for more details about how this works.
        // TODO Check this again before the Serenity release, because all addresses will be
        // contracts then.
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }
}



/**
 * @title BaseUpgradeabilityProxy
 * @dev This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 */
contract BaseUpgradeabilityProxy is Proxy {
    /**
     * @dev Emitted when the implementation is upgraded.
     * @param implementation Address of the new implementation.
     */
    event Upgraded(address indexed implementation);

    /**
     * @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.
     * @return Address of the current implementation
     */
    function _implementation() internal view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     * @param newImplementation Address of the new implementation.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Sets the implementation address of the proxy.
     * @param newImplementation Address of the new implementation.
     */
    function _setImplementation(address newImplementation) internal {
        require(
            OpenZeppelinUpgradesAddress.isContract(newImplementation),
            "Cannot set a proxy implementation to a non-contract address"
        );

        bytes32 slot = IMPLEMENTATION_SLOT;

        assembly {
            sstore(slot, newImplementation)
        }
    }
}



/**
 * @title UpgradeabilityProxy
 * @dev Extends BaseUpgradeabilityProxy with a constructor for initializing
 * implementation and init data.
 */
contract UpgradeabilityProxy is BaseUpgradeabilityProxy {
    /**
     * @dev Contract constructor.
     * @param _logic Address of the initial implementation.
     * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
     */
    constructor(address _logic, bytes memory _data) public payable {
        assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
        _setImplementation(_logic);
        if (_data.length > 0) {
            (bool success,) = _logic.delegatecall(_data);
            require(success);
        }
    }
}



/**
 * @title BaseAdminUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 */
contract BaseAdminUpgradeabilityProxy is UpgradeabilityAdmin, BaseUpgradeabilityProxy {
    /**
     * @dev Emitted when the administration has been transferred.
     * @param previousAdmin Address of the previous admin.
     * @param newAdmin Address of the new admin.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Modifier to check whether the `msg.sender` is the admin.
     */
    modifier ifAdmin() {
        require(msg.sender == _admin());
        _;
    }

    /**
     * @return The address of the proxy admin.
     */
    function admin() external view returns (address) {
        return _admin();
    }

    /**
     * @return The address of the implementation.
     */
    function implementation() external view returns (address) {
        return _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * Only the current admin can call this function.
     * @param newAdmin Address to transfer proxy administration to.
     */
    function changeAdmin(address newAdmin) external ifAdmin {
        require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy.
     * Only the admin can call this function.
     * @param newImplementation Address of the new implementation.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy and call a function
     * on the new implementation.
     * This is useful to initialize the proxied contract.
     * @param newImplementation Address of the new implementation.
     * @param data Data to send as msg.data in the low level call.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data) payable external ifAdmin {
        _upgradeTo(newImplementation);
        (bool success,) = newImplementation.delegatecall(data);
        require(success);
    }

    /**
     * @dev Sets the address of the proxy admin.
     * @param newAdmin Address of the new proxy admin.
     */
    function _setAdmin(address newAdmin) internal {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            sstore(slot, newAdmin)
        }
    }
}



/**
 * @title AdminUpgradeabilityProxy
 * @dev Extends from BaseAdminUpgradeabilityProxy with a constructor for 
 * initializing the implementation, admin, and init data.
 */
contract AdminUpgradeabilityProxy is BaseAdminUpgradeabilityProxy, UpgradeabilityProxy {
    /**
     * Contract constructor.
     * @param _logic address of the initial implementation.
     * @param _admin Address of the proxy administrator.
     */
    constructor(address _logic, address _admin) UpgradeabilityProxy(_logic, new bytes(0)) public payable {
        assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
        _setAdmin(_admin);
    }
}

Contract Security Audit

Contract ABI

API
[{"constant":false,"inputs":[{"name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newImplementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"admin","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_logic","type":"address"},{"name":"_admin","type":"address"}],"payable":true,"stateMutability":"payable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousAdmin","type":"address"},{"indexed":false,"name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}]

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

Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000007b48d8474c9d05a9af4323c012cb0e7f4c276673000000000000000000000000b408e8217aa6bb2fead09ffcbaa505255573e04d

-----Decoded View---------------
Arg [0] : _logic (address): 0x7B48d8474c9d05a9AF4323c012Cb0E7F4C276673
Arg [1] : _admin (address): 0xb408e8217Aa6Bb2fEaD09FFCBAa505255573e04D

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007b48d8474c9d05a9af4323c012cb0e7f4c276673
Arg [1] : 000000000000000000000000b408e8217aa6bb2fead09ffcbaa505255573e04d


Block Transaction Gas Used Reward
view all blocks validated

Block Uncle Number Difficulty Gas Used Reward
View All Uncles
Loading...
Loading
Loading...
Loading
Loading...
Loading

Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
[ Download: CSV Export  ]

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.