Contract 0xF8780E00Ce8ed2e79aeC10908a169900eD1D4AFe

 
Txn Hash Method
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0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2aBatch Requote Of...137249682022-07-03 2:17:228 mins ago0x76c3e7e40c91c59a1e8d3e388a62aadba837d757 IN  Rubicon: Bath Pair0 Ether0.0000555991690.001
0x3de6d6092874dad019444780d6401eba3b61a90594b1b025a2d5d217914056d1Batch Requote Of...137248972022-07-03 2:16:219 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000650147030.001
0x2ac735384c0a7a986f468f379885dc1a246d079f078990eef740d4d0a19c7812Batch Requote Of...137247132022-07-03 2:09:5516 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000759519590.001
0x99dfe25b88702431d5edf7b0fb66ddf59e421d709eff2f1526e89744550b3149Batch Requote Of...137246682022-07-03 2:08:1018 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000651009850.001
0x352b2d6698d0cb8c38a4820dfa329821357ea646fd5280442c7c41891c966032Batch Requote Of...137242142022-07-03 1:55:1031 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000645477990.001
0x160f95a3b2ca440d933b136ddb95f9c53315237cc4083fb6b9029ff2c2c9100eBatch Requote Of...137239582022-07-03 1:46:2039 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0001004040090.001
0x6743270106f495a4fc0dce364113c8769cb023349fbcbcdf9baf3515318ac96dBatch Requote Of...137238242022-07-03 1:43:2742 mins ago0x2cc433792018561fcc98214e7cfdf013672d8308 IN  Rubicon: Bath Pair0 Ether0.0001235631650.001
0x3be5a6f266438ae0553edad14b722b662b1d3ebd8a7dcfeadc1a36635b44abb5Batch Requote Of...137238112022-07-03 1:43:2742 mins ago0x76c3e7e40c91c59a1e8d3e388a62aadba837d757 IN  Rubicon: Bath Pair0 Ether0.0001169077290.001
0xb0222597e17993fa21e3d93cf2dca0216534414fc1527af93ac32e140f0d1d05Batch Requote Of...137237182022-07-03 1:43:1243 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000896135550.001
0x77b7214e1f996bda3a0f050bf47dc4f4d1e3b89ae9ef0b40011c04a9edad72beBatch Requote Of...137236652022-07-03 1:42:2543 mins ago0xa07136482c84e631348999d32d52c62ba5ca4ffe IN  Rubicon: Bath Pair0 Ether0.000095343390.001
0xa1def02fd1bdc5b65416cf6f932b4a94dc07520c49bf353a35393fc4451d6e97Batch Requote Of...137236362022-07-03 1:42:1044 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000801701830.001
0xf7cd0d62eb269fb114f6634e39a34dbeac85bd4f913e205fa43e0ba5ae79bed3Batch Requote Of...137232862022-07-03 1:32:5853 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000687919940.001
0xcfac062fec5867fc12bfb23ed22cb26f1189f193f402bce4e06b4b28682fd573Batch Requote Of...137229332022-07-03 1:18:291 hr 7 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000642363210.001
0x202df38f46279bad3ae50e680175a0fbce7521a1b0386b2ac1731d815b8c27aeBatch Requote Of...137226102022-07-03 1:06:251 hr 19 mins ago0xa07136482c84e631348999d32d52c62ba5ca4ffe IN  Rubicon: Bath Pair0 Ether0.000124165360.001
0x0eca8dfc882140edba74b34edf570e96172a4dd53199c894f5300c2c1b1d721bBatch Requote Of...137225872022-07-03 1:05:501 hr 20 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0001047200740.001
0x0db853f0cb153aa360c6bf10d041fb2c2965131325c6b5be7478ec9b25948a4cBatch Requote Of...137225532022-07-03 1:03:351 hr 22 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0001200590010.001
0x9216e18c351c0b55d4c8ece694f6c28a2ee54e5b03f322a8e1cc8cc351592f7cBatch Requote Of...137222312022-07-03 0:51:141 hr 35 mins ago0xa07136482c84e631348999d32d52c62ba5ca4ffe IN  Rubicon: Bath Pair0 Ether0.0000910751870.001
0x3ec63fd0ec4ad91113b97da002a4be4f703d5d3186d7dc78ea8301b1e2ef57abBatch Requote Of...137221622022-07-03 0:48:461 hr 37 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000870319190.001
0x8c923f4355fc44eb407b31c0839ead6f58013dabc05afef763192e6dd2f38db2Batch Requote Of...137221062022-07-03 0:46:411 hr 39 mins ago0x288f99cb433e10b2d08eb2c885d16845619d5e0d IN  Rubicon: Bath Pair0 Ether0.0000891099630.001
0xa221658e367b7b875bce9e9fa15374478687a2d5797a9b72f9969063d97bf499Batch Requote Of...137217542022-07-03 0:35:011 hr 51 mins ago0xc7dcc18d1de7496b5b02a1745e987add5baa7442 IN  Rubicon: Bath Pair0 Ether0.0000747111060.001
0x9cdfd74439cf0de2c0cd5963d7117cf11f58fd9a3d965f6147b26f891b2a1dfcBatch Requote Of...137215962022-07-03 0:31:201 hr 54 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000651511490.001
0x036cb6b3a57b8aade121543bdf220b593e21cb6c8dbe8fe4ea06d5ab68e88bc7Batch Requote Of...137215322022-07-03 0:30:501 hr 55 mins ago0x288f99cb433e10b2d08eb2c885d16845619d5e0d IN  Rubicon: Bath Pair0 Ether0.0000729418020.001
0xe6e436040212a67786a4657bf7bfdd1e6bdb12829b6257b4c33aed393b9a881cBatch Requote Of...137215252022-07-03 0:30:351 hr 55 mins ago0x76c3e7e40c91c59a1e8d3e388a62aadba837d757 IN  Rubicon: Bath Pair0 Ether0.0000761347280.001
0xfc82482db0dd7f5e416c662bc36c87e4716359a7ed8b9399aa218c6dfbfbad12Batch Requote Of...137214332022-07-03 0:30:191 hr 56 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.0000529883950.001
0xa325ce5aa5c10e5dbb672a4099eca74ad29768ba7f4c8e1eb570f7f02923bcb9Batch Requote Of...137214232022-07-03 0:28:491 hr 57 mins ago0xd555f578571f41703b06eb3f4a700d65c67a8394 IN  Rubicon: Bath Pair0 Ether0.000059665920.001
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Latest 25 internal transaction
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0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: bathUSDC Token0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0xb0be5d911e3bd4ee2a8706cf1fac8d767a5504970 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath PairWrapped Ether0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: bathUSDC Token0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0xb0be5d911e3bd4ee2a8706cf1fac8d767a5504970 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: bathUSDC Token0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0xb0be5d911e3bd4ee2a8706cf1fac8d767a5504970 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath PairWrapped Ether0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: bathUSDC Token0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0xb0be5d911e3bd4ee2a8706cf1fac8d767a5504970 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair Rubicon: bathUSDC Token0 Ether
0xbdddb8e3f4d21a3b0ff06263594d743f048c8a805a664e18ac21384880deee2a137249682022-07-03 2:17:228 mins ago Rubicon: Bath Pair 0xb0be5d911e3bd4ee2a8706cf1fac8d767a5504970 Ether
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x612d4eaF6879C4424E44d031d97aA3010E15499A

Contract Name:
TransparentUpgradeableProxy

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 1 runs

Other Settings:
default evmVersion
File 1 of 4 : TransparentUpgradeableProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./UpgradeableProxy.sol";

/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 *
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 *
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
 */
contract TransparentUpgradeableProxy is UpgradeableProxy {
    /**
     * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
     * optionally initialized with `_data` as explained in {UpgradeableProxy-constructor}.
     */
    constructor(address _logic, address admin_, bytes memory _data) public payable UpgradeableProxy(_logic, _data) {
        assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        _setAdmin(admin_);
    }

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 private constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Returns the current admin.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function admin() external ifAdmin returns (address admin_) {
        admin_ = _admin();
    }

    /**
     * @dev Returns the current implementation.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
     */
    function implementation() external ifAdmin returns (address implementation_) {
        implementation_ = _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
     */
    function changeAdmin(address newAdmin) external virtual ifAdmin {
        require(newAdmin != address(0), "TransparentUpgradeableProxy: new admin is the zero address");
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the implementation of the proxy.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
     */
    function upgradeTo(address newImplementation) external virtual ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
     * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
     * proxied contract.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data) external payable virtual ifAdmin {
        _upgradeTo(newImplementation);
        Address.functionDelegateCall(newImplementation, data);
    }

    /**
     * @dev Returns the current admin.
     */
    function _admin() internal view virtual returns (address adm) {
        bytes32 slot = _ADMIN_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        bytes32 slot = _ADMIN_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
     */
    function _beforeFallback() internal virtual override {
        require(msg.sender != _admin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
        super._beforeFallback();
    }
}

File 2 of 4 : UpgradeableProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./Proxy.sol";
import "../utils/Address.sol";

/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 *
 * Upgradeability is only provided internally through {_upgradeTo}. For an externally upgradeable proxy see
 * {TransparentUpgradeableProxy}.
 */
contract UpgradeableProxy is Proxy {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) public payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _setImplementation(_logic);
        if(_data.length > 0) {
            Address.functionDelegateCall(_logic, _data);
        }
    }

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    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 private constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        bytes32 slot = _IMPLEMENTATION_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal virtual {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "UpgradeableProxy: new implementation is not a contract");

        bytes32 slot = _IMPLEMENTATION_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newImplementation)
        }
    }
}

File 3 of 4 : Proxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        // solhint-disable-next-line no-inline-assembly
        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 {
    }
}

File 4 of 4 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @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;
        // solhint-disable-next-line no-inline-assembly
        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");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

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

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Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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