Contract 0x09e9222e96e7b4ae2a407b98d48e330053351eee 1

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Contract Overview

Arbitrum One: L2 ERC20 Gateway
Balance:
0 ETH

ETH Value:
$0.00
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x6d8ab9ce07efd7fea38e090b34150592d024a7bef5d48e0848ef2237797aaa29Finalize Inbound...204553912022-08-17 1:32:035 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x8d7a8a185a28c435714ad33a7947546f44458b26ee9954eb267beb7fc609544dFinalize Inbound...204546162022-08-17 1:20:2317 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x5cf8936c02323177492af484eeea963b214683b1413f21f38fec5aee1c9546a2Finalize Inbound...204543332022-08-17 1:14:4723 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x7598050b9e8c1c680da687b142385e954fe38c95c7e93ac3e45900fbbd058022Finalize Inbound...204541402022-08-17 1:12:3925 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x6a4eb5f56bfb50715e4169b9730039791eecac6dbc8e97af3c86e91c97104969Finalize Inbound...204539692022-08-17 1:09:5228 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x08b5b79fd4295c21844e55a59bb1bf040fdc8bc1ae8b426f1e0d38025b84b25fFinalize Inbound...204535242022-08-17 1:04:1033 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x18e8eb976b91dfcf05cd3eab162b31f20a0a7daaed5e190a2e533afab9dd109fFinalize Inbound...204535242022-08-17 1:04:1033 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x604798489d1f29667600faca267423284efdbdb1231981aac8d94113d2894138Finalize Inbound...204515572022-08-17 0:37:321 hr agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xa14852148e5522887ed3fab4ed15b007c7fcbc5f8df8cac2c58fabd6190d94cfFinalize Inbound...204513952022-08-17 0:34:511 hr 3 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xe01385e85479db2b81a4a1c2991e012005388d275f65711311e0cc6662380baeFinalize Inbound...204513952022-08-17 0:34:511 hr 3 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x472fe9a29086c130e62bf1fbcb81a98b65ddb2a37c3a36f2d03c4288c06cd789Finalize Inbound...204512092022-08-17 0:32:101 hr 5 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x4fc43be1591edb0492711b04458fd6b233b99dc416d0c3added354255321e138Finalize Inbound...204510422022-08-17 0:29:011 hr 8 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xd6ac92d658bc5ed33a400a5e1bd08c1a2d705241fa92cf524c7124b18d14b339Finalize Inbound...204506822022-08-17 0:22:371 hr 15 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x582aa1bb8e02698fff6cba94ee598577697bfa40400240eed8db8e4f952f9ce2Finalize Inbound...204506822022-08-17 0:22:371 hr 15 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xcd9ac53ee8f6f265ebb14bba0e0b6cf6b490634fc595a53504629f72e96531c1Finalize Inbound...204506822022-08-17 0:22:371 hr 15 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x9d6e8b16b7c17128bc15877824fe6a912f67908b1c0ce4ce611b8ac397d91ec5Finalize Inbound...204501632022-08-17 0:18:221 hr 19 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xaec7b9e07e627ad43446d961968063328e5b045bae1e40c065db6ce6d1016fd3Finalize Inbound...204501632022-08-17 0:18:221 hr 19 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xcdb3f4b4e9832a876e78cdb9b6bf6294d0a093f1be694f8532ba37cbbdc4c1afFinalize Inbound...204500082022-08-17 0:16:111 hr 21 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x8a2c522194343d26a8f2a6fb048cf151cba3a4b0a7c79875f589b5c5a859c408Finalize Inbound...204500082022-08-17 0:16:111 hr 21 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x3272e3fbf408a013f0df5ea3b80dc2d559dd68bcdf1949bacf96cd0fff29a740Finalize Inbound...204498582022-08-17 0:13:501 hr 24 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xeea0f2940786a3c23c2cfe8b8b6d6b982fbd307781f353e7a207e3fc0f662417Finalize Inbound...204494712022-08-17 0:08:401 hr 29 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x743d50ee1a8ef57751be6c9a5ec4e0c3da712cd4fa41c334f66faee796eb43aaFinalize Inbound...204483232022-08-16 23:51:241 hr 46 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0xba636dd6904b42c0924849e113950ee13de46755391fb2eb8c46acf8bdd430acFinalize Inbound...204438732022-08-16 22:32:393 hrs 5 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x07f00f4fcd8c64cd3b663f8503216b8d8f2d5f390ada8f5f672317b3b6c5da4aFinalize Inbound...204414202022-08-16 21:39:263 hrs 58 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
0x52300b9d91461cebf0c4800b1115edcf7bed21439b354dfff943824883d09446Finalize Inbound...204253002022-08-16 17:10:488 hrs 27 mins agoAliased L1 ERC20 Gateway IN  Arbitrum One: L2 ERC20 Gateway0 ETH0 ETH
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x1b02253aa0a1e86d7ed0491d69a033fd0123b10efcd1a568ea4a32ab835ce365204553912022-08-17 1:32:035 mins ago Arbitrum One: L2 ERC20 GatewayKillSwitch Finance: KSW Token0 ETH
0x1b02253aa0a1e86d7ed0491d69a033fd0123b10efcd1a568ea4a32ab835ce365204553912022-08-17 1:32:035 mins ago Arbitrum One: L2 ERC20 GatewayKillSwitch Finance: KSW Token0 ETH
0x1b02253aa0a1e86d7ed0491d69a033fd0123b10efcd1a568ea4a32ab835ce365204553912022-08-17 1:32:035 mins ago Arbitrum One: L2 ERC20 Gateway 0x3fe38087a94903a9d946fa1915e1772fe611000f0 ETH
0x1b02253aa0a1e86d7ed0491d69a033fd0123b10efcd1a568ea4a32ab835ce365204553912022-08-17 1:32:035 mins ago Arbitrum One: L2 ERC20 Gateway 0x1dcf7d03574fbc7c205f41f2e116ee094a652e930 ETH
0x1b02253aa0a1e86d7ed0491d69a033fd0123b10efcd1a568ea4a32ab835ce365204553912022-08-17 1:32:035 mins ago Aliased L1 ERC20 Gateway Arbitrum One: L2 ERC20 Gateway0 ETH
0xa3e7b25fa214a50a61256447e0ba4099efdcd9fe8dd7804fe22b0af993f22ef6204547402022-08-17 1:23:2014 mins ago Arbitrum One: L2 ERC20 Gateway Arbitrum: ArbSys0 ETH
0xa3e7b25fa214a50a61256447e0ba4099efdcd9fe8dd7804fe22b0af993f22ef6204547402022-08-17 1:23:2014 mins ago Arbitrum One: L2 ERC20 Gateway0x11cdb42b0eb46d95f990bedd4695a6e3fa0349780 ETH
0xa3e7b25fa214a50a61256447e0ba4099efdcd9fe8dd7804fe22b0af993f22ef6204547402022-08-17 1:23:2014 mins ago Arbitrum One: L2 ERC20 Gateway0x11cdb42b0eb46d95f990bedd4695a6e3fa0349780 ETH
0xa3e7b25fa214a50a61256447e0ba4099efdcd9fe8dd7804fe22b0af993f22ef6204547402022-08-17 1:23:2014 mins ago Arbitrum One: L2 ERC20 Gateway 0x3fe38087a94903a9d946fa1915e1772fe611000f0 ETH
0xa3e7b25fa214a50a61256447e0ba4099efdcd9fe8dd7804fe22b0af993f22ef6204547402022-08-17 1:23:2014 mins ago Arbitrum One: L2 ERC20 Gateway 0x1dcf7d03574fbc7c205f41f2e116ee094a652e930 ETH
0xa3e7b25fa214a50a61256447e0ba4099efdcd9fe8dd7804fe22b0af993f22ef6204547402022-08-17 1:23:2014 mins ago Arbitrum One: L2 Gateway Router Arbitrum One: L2 ERC20 Gateway0 ETH
0x1f836aab17d8898bb3ff1770932ab0afc9b0405740ba784d40fce60e5f001298204546162022-08-17 1:20:2317 mins ago Arbitrum One: L2 ERC20 Gateway0xa72159fc390f0e3c6d415e658264c7c4051e9b870 ETH
0x1f836aab17d8898bb3ff1770932ab0afc9b0405740ba784d40fce60e5f001298204546162022-08-17 1:20:2317 mins ago Arbitrum One: L2 ERC20 Gateway0xa72159fc390f0e3c6d415e658264c7c4051e9b870 ETH
0x1f836aab17d8898bb3ff1770932ab0afc9b0405740ba784d40fce60e5f001298204546162022-08-17 1:20:2317 mins ago Arbitrum One: L2 ERC20 Gateway 0x3fe38087a94903a9d946fa1915e1772fe611000f0 ETH
0x1f836aab17d8898bb3ff1770932ab0afc9b0405740ba784d40fce60e5f001298204546162022-08-17 1:20:2317 mins ago Arbitrum One: L2 ERC20 Gateway 0x1dcf7d03574fbc7c205f41f2e116ee094a652e930 ETH
0x1f836aab17d8898bb3ff1770932ab0afc9b0405740ba784d40fce60e5f001298204546162022-08-17 1:20:2317 mins ago Aliased L1 ERC20 Gateway Arbitrum One: L2 ERC20 Gateway0 ETH
0x60f1e48f18fd0b6a5ff327381f27071d20a3c41ac2bb94efeea248afa48335d3204543332022-08-17 1:14:4723 mins ago Arbitrum One: L2 ERC20 Gateway 0xc74fe4c715510ec2f8c61d70d397b32043f55abe0 ETH
0x60f1e48f18fd0b6a5ff327381f27071d20a3c41ac2bb94efeea248afa48335d3204543332022-08-17 1:14:4723 mins ago Arbitrum One: L2 ERC20 Gateway 0xc74fe4c715510ec2f8c61d70d397b32043f55abe0 ETH
0x60f1e48f18fd0b6a5ff327381f27071d20a3c41ac2bb94efeea248afa48335d3204543332022-08-17 1:14:4723 mins ago Arbitrum One: L2 ERC20 Gateway 0x3fe38087a94903a9d946fa1915e1772fe611000f0 ETH
0x60f1e48f18fd0b6a5ff327381f27071d20a3c41ac2bb94efeea248afa48335d3204543332022-08-17 1:14:4723 mins ago Arbitrum One: L2 ERC20 Gateway 0x1dcf7d03574fbc7c205f41f2e116ee094a652e930 ETH
0x60f1e48f18fd0b6a5ff327381f27071d20a3c41ac2bb94efeea248afa48335d3204543332022-08-17 1:14:4723 mins ago Aliased L1 ERC20 Gateway Arbitrum One: L2 ERC20 Gateway0 ETH
0x5bd624c0617e9b5574cc3723dc4364b1483b6e5b1a255e52b605ab1cd31983fc204541402022-08-17 1:12:3925 mins ago Arbitrum One: L2 ERC20 Gateway 0xc74fe4c715510ec2f8c61d70d397b32043f55abe0 ETH
0x5bd624c0617e9b5574cc3723dc4364b1483b6e5b1a255e52b605ab1cd31983fc204541402022-08-17 1:12:3925 mins ago Arbitrum One: L2 ERC20 Gateway 0xc74fe4c715510ec2f8c61d70d397b32043f55abe0 ETH
0x5bd624c0617e9b5574cc3723dc4364b1483b6e5b1a255e52b605ab1cd31983fc204541402022-08-17 1:12:3925 mins ago Arbitrum One: L2 ERC20 Gateway 0x3fe38087a94903a9d946fa1915e1772fe611000f0 ETH
0x5bd624c0617e9b5574cc3723dc4364b1483b6e5b1a255e52b605ab1cd31983fc204541402022-08-17 1:12:3925 mins ago Arbitrum One: L2 ERC20 Gateway 0x1dcf7d03574fbc7c205f41f2e116ee094a652e930 ETH
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x5288c571Fd7aD117beA99bF60FE0846C4E84F933

Contract Name:
TransparentUpgradeableProxy

Compiler Version
v0.6.11+commit.5ef660b1

Optimization Enabled:
Yes with 100 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": 100
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

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 Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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