Contract 0xa96b576f3f117158176e396467d591a1f5dba9df 8

 
Txn Hash Method
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0x468b44c246f7c0657d167afa10f26ff47d8abb56f7e2307d15e33cd3c56799150xb8f8bad4285872792022-10-05 23:15:19564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000036740.1
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0x7f757fa485a23ce401715cb4cd6545bfff2191ec841cff4955ee9bb1bfb0f8570xb8f8bad4285869422022-10-05 23:10:29564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000037760.1
0x526f671774c1da50ae225265e3dea40ee0c98cae483820bc3dde3ebeee8c22610xb8f8bad4285869392022-10-05 23:10:26564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0x06e37b6ef040ed64695908422f90563a8a3bf3be5dc923606cc8c8317cdb42b50xb8f8bad4285869352022-10-05 23:10:23564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0x59cc813e99ae310277919a7f306dcd091492276538541b162ffa1315e30b05230xb8f8bad4285869302022-10-05 23:10:19564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0xe58d323070d9e7973dd09f6e2b31b239bfb2c4ec052333b3fa06351c8ee10d120xb8f8bad4285869272022-10-05 23:10:15564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0x906c447e14ab545f98a36d4e054aed9bdb507650b939c0b716e94ef3e1e90ceb0xb8f8bad4285865872022-10-05 23:05:14564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0xb1448983eaf353433ee74ff9edc5a18256b3c7f936379bcf250e330bfceefd120xb8f8bad4285865802022-10-05 23:05:12564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0x5837db94f9917679d1b76700bfd68e28dc174c3542751577038ea723e48117610xb8f8bad4285865732022-10-05 23:05:09564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0x0fe5a5ecfcd81579e4fc626e4e37ccd1e50f3d61d23a8aa4ef6bbe6690059d3a0xb8f8bad4285862302022-10-05 23:00:12564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0x85e227bf8583a044872aeb05c530a6bba3d5d7ff7d36c60d6469c70090dd7db60xb8f8bad4285862252022-10-05 23:00:09564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000038040.1
0xa7e2ec4739ff22a37b541ab2b90d5f68ffcf157ae75d511b5cb369fd8744a3d80xb8f8bad4285858552022-10-05 22:55:11564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000036680.1
0xd0efaee63209d901d97882d9ff0776bfac8c3af201641886690dcd8ad08b03f10xb8f8bad4285858492022-10-05 22:55:09564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000036680.1
0x08e8b18cb6d9eaeaefae8a6617f33c8d98b67909fe0d653630e366e725a2affe0xb8f8bad4285855032022-10-05 22:50:14564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029990.1
0x15f1aa678946dd0a1e4c4ae38d75fc965259cfe7c449c1652a1a81c5a580ea1b0xb8f8bad4285854972022-10-05 22:50:12564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029990.1
0x49bbdb4f1cd998ef8fb965c661025b3c766232c52687b6352a0065b4d0ec129e0xb8f8bad4285854932022-10-05 22:50:10564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029990.1
0xac5488f7eb11b668d06a146bd8e7660767b50d54dad9f2f46c537118dec445d00xb8f8bad4285851042022-10-05 22:45:11564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029990.1
0xfdd612f639f5b5fa1a9449447fbb2e8b547de7d9449df04d654f4df606ce9cb60xb8f8bad4285851022022-10-05 22:45:08564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029990.1
0xf0817524da25890cfe5b1ff1fc77f52f995f186f13410b40d70fc427365549c50xb8f8bad4285847002022-10-05 22:40:12564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029340.1
0x08f4dab2f574a233af49ed1a08d838c5d219ace402ea43bcda12e06b44d2a2c60xb8f8bad4285846962022-10-05 22:40:09564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029340.1
0x5ef1f008e9102a81423f1aa0f2baf3678d49c2f54603faef592ef6c65290e1560xb8f8bad4285843372022-10-05 22:35:13564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029340.1
0x67d3731f0846ff14be765fee99c24f46ca64b153e876581dca551a56bd313b430xb8f8bad4285843352022-10-05 22:35:10564 days 9 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000029340.1
0x1d9f684953c064e23ad1ef2aed550625681f9ef3e04b2fb916839e6477bbc8b50xb8f8bad4285836902022-10-05 22:25:11564 days 10 hrs ago0xe8463a6d371581d3e40315dad7dbab85f1492da8 IN  0xa96b576f3f117158176e396467d591a1f5dba9df0 ETH0.000030730.1
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Latest 25 internal transaction
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0x8b4ca842b1b3ef9922c3c63de5e9ab02e880b41733a1a76934c00c57bdbb7647367668522022-11-10 0:27:45529 days 8 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0x66a71dcef29a0ffbdbe3c6a460a3b5bc225cd6750 ETH
0x8b4ca842b1b3ef9922c3c63de5e9ab02e880b41733a1a76934c00c57bdbb7647367668522022-11-10 0:27:45529 days 8 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x468b44c246f7c0657d167afa10f26ff47d8abb56f7e2307d15e33cd3c5679915285872792022-10-05 23:15:19564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x9e997b518a837f8d7e1daf4a3331b30873148c092aca227b6f0a72b20d4ba424285872732022-10-05 23:15:17564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x7f757fa485a23ce401715cb4cd6545bfff2191ec841cff4955ee9bb1bfb0f857285869422022-10-05 23:10:29564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x526f671774c1da50ae225265e3dea40ee0c98cae483820bc3dde3ebeee8c2261285869392022-10-05 23:10:26564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x06e37b6ef040ed64695908422f90563a8a3bf3be5dc923606cc8c8317cdb42b5285869352022-10-05 23:10:23564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x59cc813e99ae310277919a7f306dcd091492276538541b162ffa1315e30b0523285869302022-10-05 23:10:19564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xe58d323070d9e7973dd09f6e2b31b239bfb2c4ec052333b3fa06351c8ee10d12285869272022-10-05 23:10:15564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x906c447e14ab545f98a36d4e054aed9bdb507650b939c0b716e94ef3e1e90ceb285865872022-10-05 23:05:14564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xb1448983eaf353433ee74ff9edc5a18256b3c7f936379bcf250e330bfceefd12285865802022-10-05 23:05:12564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x5837db94f9917679d1b76700bfd68e28dc174c3542751577038ea723e4811761285865732022-10-05 23:05:09564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x0fe5a5ecfcd81579e4fc626e4e37ccd1e50f3d61d23a8aa4ef6bbe6690059d3a285862302022-10-05 23:00:12564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x85e227bf8583a044872aeb05c530a6bba3d5d7ff7d36c60d6469c70090dd7db6285862252022-10-05 23:00:09564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xa7e2ec4739ff22a37b541ab2b90d5f68ffcf157ae75d511b5cb369fd8744a3d8285858552022-10-05 22:55:11564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xd0efaee63209d901d97882d9ff0776bfac8c3af201641886690dcd8ad08b03f1285858492022-10-05 22:55:09564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x08e8b18cb6d9eaeaefae8a6617f33c8d98b67909fe0d653630e366e725a2affe285855032022-10-05 22:50:14564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x15f1aa678946dd0a1e4c4ae38d75fc965259cfe7c449c1652a1a81c5a580ea1b285854972022-10-05 22:50:12564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x49bbdb4f1cd998ef8fb965c661025b3c766232c52687b6352a0065b4d0ec129e285854932022-10-05 22:50:10564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xac5488f7eb11b668d06a146bd8e7660767b50d54dad9f2f46c537118dec445d0285851042022-10-05 22:45:11564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xfdd612f639f5b5fa1a9449447fbb2e8b547de7d9449df04d654f4df606ce9cb6285851022022-10-05 22:45:08564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0xf0817524da25890cfe5b1ff1fc77f52f995f186f13410b40d70fc427365549c5285847002022-10-05 22:40:12564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x08f4dab2f574a233af49ed1a08d838c5d219ace402ea43bcda12e06b44d2a2c6285846962022-10-05 22:40:09564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x5ef1f008e9102a81423f1aa0f2baf3678d49c2f54603faef592ef6c65290e156285843372022-10-05 22:35:13564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
0x67d3731f0846ff14be765fee99c24f46ca64b153e876581dca551a56bd313b43285843352022-10-05 22:35:10564 days 9 hrs ago 0xa96b576f3f117158176e396467d591a1f5dba9df 0xa6681e7863410491efb2b8d6ea7f740114614e490 ETH
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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
This contract matches the deployed Bytecode of the Source Code for Contract 0x965B104e250648d01d4B3b72BaC751Cde809D29E
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
OptimizedTransparentUpgradeableProxy

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 999999 runs

Other Settings:
istanbul 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"}]

Deployed Bytecode

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Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
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