Contract 0x203328C161D23dCEee3E439DeEB25cA19e2c4984 1

 
Txn Hash Method
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0x648d50fe8082e576bd7b023ecb2f6c917bbf70a550be1aa6b5c9efffa54b37e9Set Fee To48010422022-03-24 14:46:5756 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0003430881420.001
0x0af7073a9aa8ae08ba1b5f4a7bc0d9ca83d141793132d00eadf153b1f9dc9d52Set Bath Token F...48009872022-03-24 14:46:2756 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.000327170160.001
0x812639abf1f6f012887be6c0eaae28bcf51436eb817b91015a6eca9267c036b0Set Fee To48009472022-03-24 14:46:1156 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002941304680.001
0xcaa970a3d5f44dfd5720cd915b987eb2691dcff3d42f19f121bcfe1f6b30e530Set Bath Token F...48009232022-03-24 14:45:5656 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002804865940.001
0xde1d6d4aa428a094ae94927c90dfd0d9f2a7e1bc6e119192f78c8698de2be4bdSet Fee To48009062022-03-24 14:45:0156 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002941304680.001
0x820d79937e8a7424c36bf731d6cc10fa46438522a8c422f166b154ca57915619Set Bath Token F...48009032022-03-24 14:45:0156 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002316436460.001
0x9d814db8cd3fe5b9cdf2dde283b0725f8ce07af7a829564b1866827508a0a5fdSet Fee To48008942022-03-24 14:44:1256 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002429082220.001
0x8431059847edb8b0dfe5ac9671915e6a968bc7826096c949d5920c2ed0ada0efSet Bath Token F...48008862022-03-24 14:43:5456 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002657516680.001
0x1fa5ceba008f70c72065801c36f9b35a1559506adf809766cda3adcb04a5d260Set Fee To48008682022-03-24 14:43:1256 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002263898120.001
0x1293491accfbb159be2daee3997505bcfc4e4ec671c4bd9a256df28fbbb197d6Set Bath Token F...48008632022-03-24 14:42:5456 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002158925240.001
0x95bdc7be8bb00508d4f0942e1bf36209ae32922169cd0beecfbdb0f39fdb10c0Set Fee To48008492022-03-24 14:42:1256 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002613820870.001
0x555aa4462c3349fd61ad357ef4b2512056aa7452245bf093b897dd9a222f5e89Set Bath Token F...48005222022-03-24 14:31:3956 days 20 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.000246041910.001
0x30563b3fd01dd6de0ba4cb932b53810e877f4555475318d3f3c8bcfb8a25e743Approve Strategi...46108482022-03-19 17:31:3261 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0001280639890.001
0xb19c58878ef53ae6e479303bb74889880f07b8b41e6c4284b424bbd3524a4f9bApprove Strategi...46107202022-03-19 17:28:5761 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0000965363090.001
0x1bc13d8ac85a25623175c5815ab227c9f0b6d69b4fecb04d7267de4c5ec6f9c1Approve Strategi...46106492022-03-19 17:25:5661 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0001125712010.001
0x14c34ddb4d5d1622dc6c89325b0ff52943f4a39dd99b0075c89e344d47dce7eeApprove Strategi...46105492022-03-19 17:21:4861 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0001328270390.001
0x0849aeae59070165dd9e6047c2a436013aa74e6f9d70d60a148cb7a5f7aeab00Approve Strategi...46104742022-03-19 17:18:5861 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0001312714350.001
0xe5f408cf045048da716994b64f6ad771a6c9a782cbe50ce9f724d23a5fa19c85Approve Strategi...46103902022-03-19 17:16:1261 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0001662533370.001
0x5e7336d9ea948e58e02067e3a0828cd953bf887bb760680344880d28eebe18e2Approve Strategi...46099972022-03-19 17:02:5961 days 17 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0002038281690.001
0xaee0b8a18033aeffa85f4b9a77695d50e12ed9e4be02752d26dff6f74ce06092Set Reserve Rati...46092012022-03-19 16:38:2561 days 18 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0001465570380.001
0xa7c108c0108275b30cf081eba90573e8736f3f0c5c57a38d74da49b5db68d3a6Admin Write Bath...45765072022-03-18 16:25:5962 days 18 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0004345574820.001
0xd11483214792cdf793b3548f3eed18cb0ee1cbd26fbe7609dd7f135e471dbbf9Admin Write Bath...45764872022-03-18 16:25:2662 days 18 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0004345574820.001
0xc27f8b6efc77f347a5ab326c590d8ef8073951370b1373c63b4752937180dd90Admin Write Bath...45764452022-03-18 16:23:4762 days 18 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0003864068410.001
0xcbbb7efdbfaafc76478da585bb4527cc3a1fc25e9d65a4411aa59b8904aa6437Admin Write Bath...45764352022-03-18 16:23:1562 days 18 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0003884493510.001
0x86fd1d9469eacc1544742eef50a4aada5772e48ec3db61f7a523bb23e3eefcbaAdmin Write Bath...45764042022-03-18 16:22:0762 days 18 hrs ago0x3204ac6f848e05557c6c7876e09059882e07962f IN  Rubicon: Bath House0 Ether0.0003100761740.001
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Latest 25 internal transaction
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0x193372b9466fb09cfb6b6f9e299f554678ba29e6b5534913a6ed9a4397095d8e73876392022-05-08 15:58:4011 days 19 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0x193372b9466fb09cfb6b6f9e299f554678ba29e6b5534913a6ed9a4397095d8e73876392022-05-08 15:58:4011 days 19 hrs ago Rubicon: bathUSDC Token Rubicon: Bath House0 Ether
0x193372b9466fb09cfb6b6f9e299f554678ba29e6b5534913a6ed9a4397095d8e73876392022-05-08 15:58:4011 days 19 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0x193372b9466fb09cfb6b6f9e299f554678ba29e6b5534913a6ed9a4397095d8e73876392022-05-08 15:58:4011 days 19 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0x193372b9466fb09cfb6b6f9e299f554678ba29e6b5534913a6ed9a4397095d8e73876392022-05-08 15:58:4011 days 19 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0x193372b9466fb09cfb6b6f9e299f554678ba29e6b5534913a6ed9a4397095d8e73876392022-05-08 15:58:4011 days 19 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xcf0a5846949d794be910f321f9b9cdf64db557b617adf9dfbabc03e1e8db892b68339212022-04-30 23:08:4219 days 11 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0xcf0a5846949d794be910f321f9b9cdf64db557b617adf9dfbabc03e1e8db892b68339212022-04-30 23:08:4219 days 11 hrs ago Rubicon: bathDAI Token Rubicon: Bath House0 Ether
0xcf0a5846949d794be910f321f9b9cdf64db557b617adf9dfbabc03e1e8db892b68339212022-04-30 23:08:4219 days 11 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0xcf0a5846949d794be910f321f9b9cdf64db557b617adf9dfbabc03e1e8db892b68339212022-04-30 23:08:4219 days 11 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xcf0a5846949d794be910f321f9b9cdf64db557b617adf9dfbabc03e1e8db892b68339212022-04-30 23:08:4219 days 11 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0xcf0a5846949d794be910f321f9b9cdf64db557b617adf9dfbabc03e1e8db892b68339212022-04-30 23:08:4219 days 11 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xb0795b6a0434835ca2c0d8a8c0f1e952994516a5f5f2f74b16091bc5568e731768282602022-04-30 22:03:3419 days 12 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0xb0795b6a0434835ca2c0d8a8c0f1e952994516a5f5f2f74b16091bc5568e731768282602022-04-30 22:03:3419 days 12 hrs ago Rubicon: bathDAI Token Rubicon: Bath House0 Ether
0xb0795b6a0434835ca2c0d8a8c0f1e952994516a5f5f2f74b16091bc5568e731768282602022-04-30 22:03:3419 days 12 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0xb0795b6a0434835ca2c0d8a8c0f1e952994516a5f5f2f74b16091bc5568e731768282602022-04-30 22:03:3419 days 12 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0xb0795b6a0434835ca2c0d8a8c0f1e952994516a5f5f2f74b16091bc5568e731768282602022-04-30 22:03:3419 days 12 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0xb0795b6a0434835ca2c0d8a8c0f1e952994516a5f5f2f74b16091bc5568e731768282602022-04-30 22:03:3419 days 12 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0x36902fa9843a736fe8f3f85e93e5269462a79e68d71e0c5ceecd79f65483e9de67841262022-04-30 7:50:2820 days 3 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0x36902fa9843a736fe8f3f85e93e5269462a79e68d71e0c5ceecd79f65483e9de67841262022-04-30 7:50:2820 days 3 hrs ago Rubicon: bathDAI Token Rubicon: Bath House0 Ether
0x36902fa9843a736fe8f3f85e93e5269462a79e68d71e0c5ceecd79f65483e9de67841262022-04-30 7:50:2820 days 3 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0x36902fa9843a736fe8f3f85e93e5269462a79e68d71e0c5ceecd79f65483e9de67841262022-04-30 7:50:2820 days 3 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0x36902fa9843a736fe8f3f85e93e5269462a79e68d71e0c5ceecd79f65483e9de67841262022-04-30 7:50:2820 days 3 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 Ether
0x36902fa9843a736fe8f3f85e93e5269462a79e68d71e0c5ceecd79f65483e9de67841262022-04-30 7:50:2820 days 3 hrs ago Rubicon: Bath Pair Rubicon: Bath House0 Ether
0x078dc4a122b3888d37d2a1e057b27576f3e2857d24c28b591a38b86b74f810d867279712022-04-29 12:18:2320 days 22 hrs ago Rubicon: Bath House 0x7478d71889cddb6ebdc8b9295d83fc554525e8850 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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