Contract 0x6f475642a6e85809b1c36fa62763669b1b48dd5b 3

Txn Hash Method
Block
From
To
Value [Txn Fee]
0x7d5590301c126935373f0e5e930e32e6d70fd1e1dfa267e5ea8e82e75647b6f00xac16d6ac187938942022-08-18 7:37:013 mins ago0xe93685f3bba03016f02bd1828badd6195988d950 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0081700230
0x2aa97cd85fe73a23bde35e176842a1b32a174a72059977e3eaff2bc8dab4fc710xb8f8bad4187938392022-08-18 7:35:115 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0xa0ac95e5b89bc18bfbd5a44e50662a25a12f2da0befcc574c03a2c09e998951c0xb8f8bad4187938382022-08-18 7:35:095 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010977330
0x5d8e7e4b3e90ae3a7b2669a941b2e111bce60c20c71869ad7f26f5b343b054200xb8f8bad4187938382022-08-18 7:35:095 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x4928693828a098940e8253e294a8f948adb4c8aaf88add5ad925883ba4bf31800xb8f8bad4187936902022-08-18 7:30:1010 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x43e81f8c3bb0d128c3170e4597e363b3a27a5558da83d3403ce37f2285522f740xac16d6ac187936312022-08-18 7:28:1112 mins ago0xe93685f3bba03016f02bd1828badd6195988d950 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0071075730
0x5c7199d73f957784f5f9e736d7e7c5f13ee8811bc26d8c8731b0b4c9c3c404db0xb8f8bad4187935412022-08-18 7:25:0815 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010970130
0x749e31d224b9861dbfe0e230a0ed8e190ee88b21a66fe0eb18a4e16b527070cf0xb8f8bad4187935412022-08-18 7:25:0815 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0xbab951cd0ffaef33fb0b161b7060d75abef30fb4502001c00d014593855b8ba80xb8f8bad4187935412022-08-18 7:25:0815 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010977330
0xb9a5cd59bcd874ff0812f102bd4a1ee4c9df1bf14031148c93bccefa13b616690xac16d6ac187934152022-08-18 7:20:4919 mins ago0xe93685f3bba03016f02bd1828badd6195988d950 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0066414930
0x4471c2627bbd6711ac8ccc483f99c0e05882c11543697a8dad9582c39aa60c9a0xb8f8bad4187933952022-08-18 7:20:0820 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010970130
0x03e014a4a475592c11c27404809086de18201afd865abedf619f4b9b1ed2b6780xb8f8bad4187933952022-08-18 7:20:0820 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x8839959b4ef6abdfa3945759b7f5be2deca6c84e94210cfbc1f5969e6bb6e3fb0xb8f8bad4187933942022-08-18 7:20:0720 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010977330
0x0c89fd252e4ea347eb41595a6a7ebc79da6583b5ea9c29e09cf069d450c258a90xfdf69784187933262022-08-18 7:17:4822 mins ago0xe93685f3bba03016f02bd1828badd6195988d950 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0.‍00364 AVAX0.‍0056543730
0x8462f12d8ab7728573727240987149e85fe45d7c588f565d4a2c06e606eda2670xac16d6ac187932982022-08-18 7:16:4923 mins ago0xe93685f3bba03016f02bd1828badd6195988d950 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0071544930
0x7d8482f45588dd5252d18d395dfb918a0e3285aef4bddfdc22c8c6ff1c2dc3640xb8f8bad4187932532022-08-18 7:15:1225 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x43ead8e0e9f3e962dbc94dcd0959588007ba68753530d276e443dfd4d2fa48bb0xb8f8bad4187932522022-08-18 7:15:0925 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0xf6a34f88c38962eba81fc00acc54096cbb4ae4dbada72691f4d51d5cd31bc7640xb8f8bad4187932522022-08-18 7:15:0925 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x7675e4ae89ccdedcced9800b3f0baedc790989cb95988c3c9aeac62ff84daeaf0xb8f8bad4187932512022-08-18 7:15:0825 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0xf9288d3e022174aa0e0117d3067f28d9f11437cc031795a3debbe05ccdd6f4350xb8f8bad4187931042022-08-18 7:10:0930 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010977330
0x6a787813d131dd63c6d38b878137ffb5f69f6b69113bbf0a9fb57021b734401f0xb8f8bad4187931032022-08-18 7:10:0730 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x2f1456a0f9639b2754c4ace1c699f1f22fa8824d6e44a2408da71b8c1f3cab310xb8f8bad4187929592022-08-18 7:05:1035 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0xb46f01bbc58d85e3075cad6092ef020623c8b065be614b94dc12eca4fc08fc940xb8f8bad4187929592022-08-18 7:05:1035 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x56e0d454527e96b3780fdd46a452ceeeec99a19e02f08065bc0cf2c37d9c97430xb8f8bad4187929592022-08-18 7:05:1035 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010973730
0x6ae934e257c07f3bc54bb3f2006b1e4a2b7abf67476202829eb4420770a68c180xb8f8bad4187929582022-08-18 7:05:0835 mins ago0x339d413ccefd986b1b3647a9cfa9cbbe70a30749 IN  0x6f475642a6e85809b1c36fa62763669b1b48dd5b0 AVAX0.‍0010977330
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x0c89fd252e4ea347eb41595a6a7ebc79da6583b5ea9c29e09cf069d450c258a9187933262022-08-18 7:17:4822 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x2c9bdd583e515eb958cb60ffe663b3acf16412d50.‍00364 AVAX
0xdc4db9150f6a639e6baa40d33fdf37e96248b392cb0c0eb9c10fff7dcfceeebe187925762022-08-18 6:52:1447 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xc16bf23a6e1282298467ed76af912b9e9108431a0.‍00364 AVAX
0x952fc2a6bf55a07b2b25643e75fc13ccfaa744aa6c487cee1abfc898a2d77bf4187910222022-08-18 5:58:561 hr 41 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xbdc70cb1ef1e879405fcd42e39a79080a6ffd91d0.‍00364 AVAX
0xa4a0332872012fadd9dae2d86bcd48d9589883042885c400ea99ee0a212e0142187907142022-08-18 5:48:251 hr 51 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xbdc70cb1ef1e879405fcd42e39a79080a6ffd91d0.‍00364 AVAX
0x6a9af8f8b993460d6531d1f5d16304867eb73293a2768a456d97661a5d75b54c187903652022-08-18 5:36:242 hrs 3 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x6e58ed4819466029599a4e2dc81549c48c447a340.‍00364 AVAX
0x7d42c94aa3beeedffe595e3fe956421c54e4d8f354fa33eaedcb67ffeef13e90187899572022-08-18 5:22:112 hrs 18 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x610e66488b405e4c10bab8c34c53b2931cab6e180.‍00364 AVAX
0xf1fb0769557d28d6f8fab3ae88ad2dab180790bf3498a6b60a51d2724f6d7e7b187894772022-08-18 5:05:202 hrs 34 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x2b1ab5bdd236b301bc5f6f2f707ec14d11f1852c0.‍00364 AVAX
0x0b47c24ca932c64473a53429a3eccad434ed76f0fd042d5aed175c43053a6621187837812022-08-18 1:49:455 hrs 50 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x6e58ed4819466029599a4e2dc81549c48c447a340.‍00364 AVAX
0xe5a9cad2d8337a597efc170bb8253bd0a052651aaddf36d41fef35bc17dd20e4187815212022-08-18 0:31:497 hrs 8 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xdf28de3a7be6e43ea04bf17b76da6a07a1d7b91b0.‍1 AVAX
0x5bfeb41b7f490a2140382e6b0f55214bae39a8966cc751aba0f32ba98435c264187791842022-08-17 23:11:338 hrs 28 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x255bfed9f89714cb2fbb9c6905c8ab7e1e806d6e0.‍00364 AVAX
0x5099e5ff69c19bfa556e29c86fef9c0ed5db4357b5d0dad7379238ff5676e1e8187784892022-08-17 22:47:408 hrs 52 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x56438345bb2c97c7c22dddf6e087bb4bd7bb04520.‍00364 AVAX
0xb6eace25b88122c8583944c8f6567e716cc6971aca29418799f6e784b0a46840187778492022-08-17 22:25:599 hrs 14 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xa68d7599f2f2e0842ea00517dcf7b31d044c72890.‍00364 AVAX
0xc6ea054cc42bdbd89151f2f570b549a09b92e11baa175d13400ae9d1463be765187772562022-08-17 22:05:379 hrs 34 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xea1c69256d8d61c9ad7336ebe66103ff7960c9f30.‍00364 AVAX
0xaa3ac19c06c19cda709091a0663f12912ca325557ec5d7d06af99acc04afa179187766442022-08-17 21:44:299 hrs 55 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xea1c69256d8d61c9ad7336ebe66103ff7960c9f30.‍00364 AVAX
0xf016adaa0b78f8f378089369aee35b1685b4f006719a38f024361fdd01a49b5c187761972022-08-17 21:29:1210 hrs 11 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xc048b2cf8cccd3e5c40ac7adf0d6c82547f8e1fb0.‍00364 AVAX
0xa6131cd63a85dcaa0852a4f34a1b33a455159fc0172ae43d3f72a26f48f32d8b187761222022-08-17 21:26:3810 hrs 13 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xc048b2cf8cccd3e5c40ac7adf0d6c82547f8e1fb0.‍00364 AVAX
0x3698b04361ebbbf374ca45746e6afce28d8bf30acb90132a94371357500c234a187741242022-08-17 20:18:1311 hrs 22 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x57febe3600ad2b99bbb947249d9ab225a08e570a0.‍00364 AVAX
0x344e3b16e07b3a433e4ab998f9f7dd8a5d4e35e8456f2a6644ee891d6e973d14187740392022-08-17 20:15:2011 hrs 24 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x57febe3600ad2b99bbb947249d9ab225a08e570a0.‍00364 AVAX
0x6bd932d930c57d3e4c1dab78fd58296d0f3fc2501425370ee40ffc79d1293d6a187733292022-08-17 19:50:4411 hrs 49 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x8d95730bab8499e1169d2b7208005b11721cee6a0.‍00364 AVAX
0xaf4e6e881a3f352dde67e28487957eb5be74d800df69ae8f4b35e7a37bc8a244187732532022-08-17 19:48:0911 hrs 52 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x506884697f0bb3715b0ff07ab256bce1e705cf4b0.‍00364 AVAX
0xfb2fd4ed8af13ab59d5c8919b81c288932546ea0391aa9c1dc4036eb801006d3187705412022-08-17 18:15:1213 hrs 25 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x6eba8cf0b61265996a8a32a4e9cf458ead2e17680.‍0364 AVAX
0x6e7c138c0981764692ee330a90f543d5327064bb020370558b251cb4132ff926187672602022-08-17 16:23:2815 hrs 16 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x83d261e656152f8c576b7bbcf5a4045ad3f5c5660.‍00364 AVAX
0x7927ff178576e9f25d070d2066283ac23d452a7ee4e77977e1d4b33182e11809187646432022-08-17 14:53:5516 hrs 46 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x0c9f37f77bea2c6e6f15c1a8c4d7316a3ee7408b0.‍00364 AVAX
0x1e79ffc1bd9d716134c787231d016325818cdaf036cf816935a2095cd7f947a8187640232022-08-17 14:32:5717 hrs 7 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0x9991145010d0fb96497e86b9579fc8c998b426d20.‍00364 AVAX
0x48ef60dcec6730db2760189364d03257a2fa59ed5bc62d5dc0b322aacf2d34cd187620442022-08-17 13:25:2518 hrs 14 mins ago 0x6f475642a6e85809b1c36fa62763669b1b48dd5b0xf5810cd8ba3209d2ecf0b76fcd496eaa199e06940.‍00364 AVAX
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.

Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xfB14128FB28Dcbfd1F77e06dFdf633e0c7A3cbC0

Contract Name:
OptimizedTransparentUpgradeableProxy

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 999999 runs

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

pragma solidity ^0.7.0;

/**
 * @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 {
        // 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 virtual view 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 {
        _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 () payable external {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () payable external {
        _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 2 of 4 : UpgradeableProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

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) payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _setImplementation(_logic);
        if(_data.length > 0) {
            // solhint-disable-next-line avoid-low-level-calls
            (bool success,) = _logic.delegatecall(_data);
            require(success);
        }
    }

    /**
     * @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 override view 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 {
        _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 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        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);
            }
        }
    }
}

File 4 of 4 : OptimizedTransparentUpgradeableProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;

import "../openzeppelin/proxy/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 inerface of your proxy.
 */
contract OptimizedTransparentUpgradeableProxy is UpgradeableProxy {
    address internal immutable _ADMIN;

    /**
     * @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 initialLogic,
        address initialAdmin,
        bytes memory _data
    ) payable UpgradeableProxy(initialLogic, _data) {
        assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        bytes32 slot = _ADMIN_SLOT;

        _ADMIN = initialAdmin;

        // still store it to work with EIP-1967
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, initialAdmin)
        }
    }

    /**
     * @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) {
        return _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) {
        return _implementation();
    }

    /**
     * @dev Upgrade the implementation of the proxy.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
     */
    function upgradeTo(address newImplementation) external 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 ifAdmin {
        _upgradeTo(newImplementation);
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = newImplementation.delegatecall(data);
        require(success);
    }

    /**
     * @dev Returns the current admin.
     */
    function _admin() internal view returns (address adm) {
        return _ADMIN;
    }

    /**
     * @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();
    }
}

Settings
{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"initialLogic","type":"address"},{"internalType":"address","name":"initialAdmin","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"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":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","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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