Contract 0x7Af14ADc8Aea70f063c7eA3B2C1AD0D7A59C4bFf

 
Txn Hash Method
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0xe8047eba2792f12e5ab005fe4ac241ba4695fc9089eadc6551d13975569def85Swap137152802022-07-02 21:05:544 hrs 41 mins ago0xdb160de5eb60f005c280e2338346faa9ebc682ba IN  Rubicon: Rubicon Router0 Ether0.0000376014120.001
0xe16e211731da7cbd7d1dbe72b4747fbf013a4f7e02dfad12ed05b84afe0434a4Swap137059782022-07-02 16:39:239 hrs 7 mins ago0x06edb03f407e4bcfa77beaac3504e9d958b47b58 IN  Rubicon: Rubicon Router0 Ether0.00010315870.001
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397Swap137033842022-07-02 15:49:509 hrs 57 mins ago0xcadecbc234d81ded25761408afd5aa5ad40da9cf IN  Rubicon: Rubicon Router0 Ether0.0000854883140.001
0xe0aee51649c45a806aec6a7c06a6da641d31aa3226d9ecf2baaf56983e2cafc5Swap136874022022-07-02 9:30:3316 hrs 16 mins ago0x2df2de1487adf84e9ad3a70300fcf7ddf50acf53 IN  Rubicon: Rubicon Router0 Ether0.0000522039990.001
0x98b178e4955efef31febe1ca13aa2ba6cb5951cc403c8ef30cb1a7fe8c9302c0Swap136868932022-07-02 9:26:1116 hrs 21 mins ago0x90aa5c7a67081409d0b826facd34600463778a48 IN  Rubicon: Rubicon Router0 Ether0.00004155610.001
0x347ed5f720288de59e1e9cd9493441818fe3a14abe596b60d5ebb5cca45e043cSwap136866342022-07-02 9:25:1016 hrs 22 mins ago0xbec18cfe334c7828848e4c686417bb297f0137cb IN  Rubicon: Rubicon Router0 Ether0.0000415554290.001
0xfc26c8d149fd621efd5ca88daafaac60296a21a66b044941ad6e7d5a02f2a82dSwap136863782022-07-02 9:21:1016 hrs 26 mins ago0xa875652c2b56b0783f9eaba1356c74a070dc4c60 IN  Rubicon: Rubicon Router0 Ether0.0000447467190.001
0x1d9a73cff1dc4e6c7df54779c75cc02e85645bff97881b2fd2992e7f81e4004eSwap136861252022-07-02 9:14:2016 hrs 32 mins ago0x3e92f732ace6c88fea6f08da9be1c4e95ebad470 IN  Rubicon: Rubicon Router0 Ether0.0000525842430.001
0x176baab81c489ec4eb932ec1900bb67e8299af8c3886f98f4121021c3a65c250Swap136799032022-07-02 6:45:1719 hrs 1 min ago0x81b305da6abe8abf8850a3f0eb4b9782290d816d IN  Rubicon: Rubicon Router0 Ether0.0000420469150.001
0xf5f8736fa3a3bd010d6e8208b39183bdefc8de7674c79f91d81b9754b0fcb18dSwap136624292022-07-02 0:23:541 day 1 hr ago0x8ee4e1b5a0143dee0b0332c97b280e4b467aa20c IN  Rubicon: Rubicon Router0 Ether0.0001473898970.001
0xcf8b55a7710e24d238966f06f66198ee6140cec16437bc61a47c6eb55413a9feSwap136586152022-07-01 23:18:291 day 2 hrs ago 0x375832af86a7f7c60476dbb47ca54ea8ac913110 IN  Rubicon: Rubicon Router0 Ether0.000140160580.001
0xe1423e067df76553ac4ddb264a4dfff17ca99cc4f990c7d1b8eff4660e0c17abSwap136502162022-07-01 19:52:081 day 5 hrs ago0xd6753d1157d0bbae655dfa9d8cf008854044a8fc IN  Rubicon: Rubicon Router0 Ether0.0002189831670.001
0x3da1f51fcd89fca48707973310b1f5e51d4788d18a89b8cda4f6080f310a31b1Swap136501472022-07-01 19:49:551 day 5 hrs ago0xd6753d1157d0bbae655dfa9d8cf008854044a8fc IN  Rubicon: Rubicon Router0 Ether0.0001923869640.001
0x200df91fb9f7ef93f0139828cd6d7d5067a769a4c668dbedd3d4d295a9b7a4d0Swap136449262022-07-01 17:30:071 day 8 hrs ago0xb3519518d2d6da084b9bf1928965af495cb0b4f7 IN  Rubicon: Rubicon Router0 Ether0.0003284260710.001
0x70375f9434b2e642b37a4ec1448193eeb095c7aaed2882d92613724aa9c677e0Swap136400242022-07-01 15:30:591 day 10 hrs ago0xe3569d4462e31c9b911641d85059c240903b4fa0 IN  Rubicon: Rubicon Router0 Ether0.0003556300570.001
0xaf42a89b86218a2e93ffebfb36729710eddd159da2ce2b436a55d60c96897f78Swap136362512022-07-01 14:27:461 day 11 hrs ago0xd7ab33c8a52472b241b5a2ecaa47f933a0450df9 IN  Rubicon: Rubicon Router0 Ether0.0001509010360.001
0x1575556b1c78d1bc032ff7320caa7fc0c1e33f7640ce0986dba448c12ffa6038Swap136358482022-07-01 14:23:071 day 11 hrs ago0x3bd2b25a8e21243f47b3a948c54a9f00a6d8353e IN  Rubicon: Rubicon Router0 Ether0.0001461318390.001
0xf6545bae017a630dc91fee87554ec64382353029ee54531a6392df9c1f49af44Swap136284682022-07-01 12:55:371 day 12 hrs ago0xac844890b7286ab6981cde7fda93a49a4c01fe4d IN  Rubicon: Rubicon Router0 Ether0.0000958724490.001
0x4b990c4b1240f3912a0e37da18a5aef7ac8edc74e8e0d41bfb5c8f81f91b27c7Swap136227062022-07-01 11:22:431 day 14 hrs ago0x014433dd77b46ab33754e796cea61d2d79d0fd0a IN  Rubicon: Rubicon Router0 Ether0.0000955064050.001
0xe2a91f32a90d5cf83803c3e39f2bab9ae63678a208d15f47073f13f6557ea95aSwap136223992022-07-01 11:16:461 day 14 hrs ago0x014433dd77b46ab33754e796cea61d2d79d0fd0a IN  Rubicon: Rubicon Router0 Ether0.0000795128280.001
0x09ebd2ff19fa2d26e58f954f1fc6ca54b15f055c6edd520c1575a30a09fc4c8cSwap136182342022-07-01 10:30:321 day 15 hrs ago0xb3519518d2d6da084b9bf1928965af495cb0b4f7 IN  Rubicon: Rubicon Router0 Ether0.000049999360.001
0x5032638682d2de814c568bb1b049adca631bc99ce52ac9abb4ee6b59f94ee107Swap136141152022-07-01 9:33:041 day 16 hrs ago0xe4b2f65d0e807b28b08c63ab91ad7e54fa1f9146 IN  Rubicon: Rubicon Router0 Ether0.0000889291390.001
0xa102c20c348c797fa4ff8f5b2121e8d58df205143dc107f38434ced11d4d31faSwap136106302022-07-01 8:45:261 day 17 hrs ago0xca574dea590fdc8f3b25269f4a520324dd7d8209 IN  Rubicon: Rubicon Router0 Ether0.0000979502220.001
0x70e677c2181f2b1eab6a6f851e4b65c742172891f25c749a7b40bf4f16e6ddd4Swap136096912022-07-01 8:36:181 day 17 hrs ago0x9f48ccc7c17e3421b8fb1d3b1c450d0c71b9cc2a IN  Rubicon: Rubicon Router0 Ether0.00012613090.001
0xa441aa8e11670412ec8e1c250fad82ad5219abe8abec36460ab48e513ed36e25Swap136089852022-07-01 8:27:261 day 17 hrs ago0x85eb544d1105b1ccfec6e5c9263475eabe38697a IN  Rubicon: Rubicon Router0 Ether0.0001488623720.001
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0xe8047eba2792f12e5ab005fe4ac241ba4695fc9089eadc6551d13975569def85137152802022-07-02 21:05:544 hrs 41 mins ago Rubicon: Rubicon Router Optimism: OP Token0 Ether
0xe8047eba2792f12e5ab005fe4ac241ba4695fc9089eadc6551d13975569def85137152802022-07-02 21:05:544 hrs 41 mins ago Rubicon: Rubicon Router Rubicon: Rubicon Market0 Ether
0xe8047eba2792f12e5ab005fe4ac241ba4695fc9089eadc6551d13975569def85137152802022-07-02 21:05:544 hrs 41 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xe8047eba2792f12e5ab005fe4ac241ba4695fc9089eadc6551d13975569def85137152802022-07-02 21:05:544 hrs 41 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xe8047eba2792f12e5ab005fe4ac241ba4695fc9089eadc6551d13975569def85137152802022-07-02 21:05:544 hrs 41 mins ago Rubicon: Rubicon Router 0x711a5c8ba2bfe94e6a9d37d5999e5bcab8ce8cf10 Ether
0xe16e211731da7cbd7d1dbe72b4747fbf013a4f7e02dfad12ed05b84afe0434a4137059782022-07-02 16:39:239 hrs 7 mins ago Rubicon: Rubicon RouterWrapped Ether0 Ether
0xe16e211731da7cbd7d1dbe72b4747fbf013a4f7e02dfad12ed05b84afe0434a4137059782022-07-02 16:39:239 hrs 7 mins ago Rubicon: Rubicon Router Rubicon: Rubicon Market0 Ether
0xe16e211731da7cbd7d1dbe72b4747fbf013a4f7e02dfad12ed05b84afe0434a4137059782022-07-02 16:39:239 hrs 7 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xe16e211731da7cbd7d1dbe72b4747fbf013a4f7e02dfad12ed05b84afe0434a4137059782022-07-02 16:39:239 hrs 7 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xe16e211731da7cbd7d1dbe72b4747fbf013a4f7e02dfad12ed05b84afe0434a4137059782022-07-02 16:39:239 hrs 7 mins ago Rubicon: Rubicon Router 0x711a5c8ba2bfe94e6a9d37d5999e5bcab8ce8cf10 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router Optimism: OP Token0 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router Rubicon: Rubicon Market0 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router Rubicon: Rubicon Market0 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon RouterWrapped Ether0 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router Rubicon: Rubicon Market0 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router 0x94b008aa00579c1307b0ef2c499ad98a8ce58e580 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router 0x94b008aa00579c1307b0ef2c499ad98a8ce58e580 Ether
0xb290f58277d9463d230a2069aeab2c2fa26e4545a3b87d790fa19ba875c0f397137033842022-07-02 15:49:509 hrs 57 mins ago Rubicon: Rubicon Router 0x711a5c8ba2bfe94e6a9d37d5999e5bcab8ce8cf10 Ether
0xe0aee51649c45a806aec6a7c06a6da641d31aa3226d9ecf2baaf56983e2cafc5136874022022-07-02 9:30:3316 hrs 16 mins ago Rubicon: Rubicon RouterWrapped Ether0 Ether
0xe0aee51649c45a806aec6a7c06a6da641d31aa3226d9ecf2baaf56983e2cafc5136874022022-07-02 9:30:3316 hrs 16 mins ago Rubicon: Rubicon Router Rubicon: Rubicon Market0 Ether
0xe0aee51649c45a806aec6a7c06a6da641d31aa3226d9ecf2baaf56983e2cafc5136874022022-07-02 9:30:3316 hrs 16 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xe0aee51649c45a806aec6a7c06a6da641d31aa3226d9ecf2baaf56983e2cafc5136874022022-07-02 9:30:3316 hrs 16 mins ago Rubicon: Rubicon Router 0x7f5c764cbc14f9669b88837ca1490cca17c316070 Ether
0xe0aee51649c45a806aec6a7c06a6da641d31aa3226d9ecf2baaf56983e2cafc5136874022022-07-02 9:30:3316 hrs 16 mins ago Rubicon: Rubicon Router 0x711a5c8ba2bfe94e6a9d37d5999e5bcab8ce8cf10 Ether
0x98b178e4955efef31febe1ca13aa2ba6cb5951cc403c8ef30cb1a7fe8c9302c0136868932022-07-02 9:26:1116 hrs 21 mins ago Rubicon: Rubicon RouterWrapped Ether0 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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