Contract 0x737eaF14061fE68f04ff4cA8205ACf538555fCC8 24

 

Contract Overview

Bridgeworld: Questing v2
Balance:
0 ETH

ETH Value:
$0.00

Token:
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x9fa2c38ad5b2ecc0e60fa70630c0d0e1395f732e7b63d10673f977987371a289Play Treasure Tr...2005049532024-04-13 6:32:281 min ago0x467df0b1702d3558e3a93574deeba6cba2e868e1 IN  Bridgeworld: Questing v20 ETH0.00000772 0.01
0xa71217714989f02569fa325e191f82486e6982b6e73832468b258c6612ff038cEnd Questing2005036342024-04-13 6:26:586 mins ago0x6189717673e1ed5da55080d0898c70f91d2784d0 IN  Bridgeworld: Questing v20 ETH0.000017570.01
0x78139b2a1e608c442476f04709eb20663bd612a5404212472b5e6e069d8960b7End Questing2005024212024-04-13 6:21:5611 mins ago0x2b5321c1afddfb6680aafff4df96a209e18dea1c IN  Bridgeworld: Questing v20 ETH0.00001913 0.01
0x443f39fd34ebb2700a8294316542cc43ed0f6e175fff0097c93e2019078c2762Play Treasure Tr...2004990542024-04-13 6:07:5325 mins ago0xf9c1989eb95dbc89489410cdf3941541937016ff IN  Bridgeworld: Questing v20 ETH0.000120320.01
0x66902f2211686b6359f127b51ebfbd8208252e47d65a109d8ac6de52ba552633End Questing2004980692024-04-13 6:03:4429 mins ago0xcce853ecb829d914d119724761e3deb6ad982047 IN  Bridgeworld: Questing v20 ETH0.00001349 0.01
0xb1997cc171617caeaf346eb24a23508ec636de9b35cda3172e176cacd00d73d7Play Treasure Tr...2004979712024-04-13 6:03:1930 mins ago0xcce853ecb829d914d119724761e3deb6ad982047 IN  Bridgeworld: Questing v20 ETH0.00004309 0.01
0x3365968e99028ca779f9df707a9c10fbad0af9419e60882aaded277197c79915End Questing2004963252024-04-13 5:56:2737 mins ago0xf9c1989eb95dbc89489410cdf3941541937016ff IN  Bridgeworld: Questing v20 ETH0.000051060.01
0xe84d9b751392d7c076abcdb02fb529c96fd8a817a3ef6896fcd82e51a0f89fa5Play Treasure Tr...2004878662024-04-13 5:21:061 hr 12 mins ago0x467df0b1702d3558e3a93574deeba6cba2e868e1 IN  Bridgeworld: Questing v20 ETH0.00001165 0.01
0xea9d5b2c5eafd9137d32f06a838d1aadf0d95c70861e738443c64f93a59bd91fStart Advanced Q...2004841212024-04-13 5:05:251 hr 28 mins ago0xda79bf4d504e07761bb377b60b005925488360c3 IN  Bridgeworld: Questing v20 ETH0.00000285 0.01
0x952992628bd303a7149b7c7c20da3a66eca89d59ec3c8de5de5272817795d70dPlay Treasure Tr...2004829612024-04-13 5:00:331 hr 33 mins ago0x9db4f1c355cd9dccf22b8c571b9eca0a13ddd44c IN  Bridgeworld: Questing v20 ETH0.00001264 0.01
0xc246a0231b404a39b12a282f5149c30c9aac8120e3d6e564f63bf95ad5337f2bEnd Questing2004802802024-04-13 4:49:171 hr 44 mins ago0xc81ef14c67a7b908be5222f307a8edefac44417e IN  Bridgeworld: Questing v20 ETH0.0000084 0.01
0xa25ba4a46a61ae776b0cca1387edef468a4253972c8108c53809a18b3b82bb5aEnd Questing2004762302024-04-13 4:32:192 hrs 1 min ago0x806898fcdce74d9550968af612b91f9f07805e5c IN  Bridgeworld: Questing v20 ETH0.00001293 0.01
0xbeb16e74060e7b50c97417332786073af1fe8f6d2c1ce03e7e4743f0de9a4026Play Treasure Tr...2004743442024-04-13 4:24:192 hrs 9 mins ago0x4fbede53b59d1a2ab85f785ad76e1dcd66a1546a IN  Bridgeworld: Questing v20 ETH0.00029137 0.01
0x1085e1b94cfa21b2768913bf25564099f02cf4db960ba1c63d4658dc9f0baf9cPlay Treasure Tr...2004743382024-04-13 4:24:182 hrs 9 mins ago0xd4f17c243afcd516f706dfeb18f564c28f243225 IN  Bridgeworld: Questing v20 ETH0.000021280.01
0xa8bac3faf483f07151d82140bb2f601bcfa3e3ccf765cb5121499ab9808c2779Play Treasure Tr...2004741362024-04-13 4:23:272 hrs 10 mins ago0x745b8e12698b852f067a5edc661adcab0a049428 IN  Bridgeworld: Questing v20 ETH0.00003638 0.01
0x64359819df572be910a7a5e19fac4c0c9d33feb632a7c0cfa7ea5769e1143c1aEnd Questing2004723842024-04-13 4:16:062 hrs 17 mins ago0x4fbede53b59d1a2ab85f785ad76e1dcd66a1546a IN  Bridgeworld: Questing v20 ETH0.00024187 0.01
0xd4f8275a35eb5da9bf17cecc82eec113a673838eff606c46460a22b322d52364Play Treasure Tr...2004719292024-04-13 4:14:122 hrs 19 mins ago0x395689a55222b46c0cea33a8a74cb84e2c0bc27d IN  Bridgeworld: Questing v20 ETH0.00002979 0.01
0x50948d750510adad59c13a3d280d683395b51ac48012826627b278d8edf77f26Play Treasure Tr...2004717532024-04-13 4:13:262 hrs 20 mins ago0xe11d6fe5918820a53c7ab7c4c37183ab29a4b103 IN  Bridgeworld: Questing v20 ETH0.00003507 0.01
0x4b5d3ae1436d0bc937a7c2124be7467555b3747f53c54367674547f7a3ef4f64End Questing2004715142024-04-13 4:12:252 hrs 21 mins ago0xe11d6fe5918820a53c7ab7c4c37183ab29a4b103 IN  Bridgeworld: Questing v20 ETH0.00005248 0.01
0xd2fa7f9732c0d1a821d4e20ba54587807335b33883892a2d9a7bd03084a0102eEnd Questing2004695022024-04-13 4:03:552 hrs 29 mins ago0xda79bf4d504e07761bb377b60b005925488360c3 IN  Bridgeworld: Questing v20 ETH0.00000409 0.01
0xa891825151910eb6c8230d7d48e0033b8252bb76339e459bc56b6b46c2930e83End Questing2004694992024-04-13 4:03:542 hrs 29 mins ago0x745b8e12698b852f067a5edc661adcab0a049428 IN  Bridgeworld: Questing v20 ETH0.00006719 0.01
0xe755e2c260b5fdb949cd4d7eb06c239ae8e40849c79eb40c8507f0830f2fb5e2Play Treasure Tr...2004680352024-04-13 3:57:442 hrs 35 mins ago0x49b144d329b096d2772533f936b5fda6ddf8dbdb IN  Bridgeworld: Questing v20 ETH0.000012570.01
0x8e1642b3c27b6c23570e54f3ceedd9bf4d7c44962a99292bd05c85763b820420Play Treasure Tr...2004668472024-04-13 3:52:452 hrs 40 mins ago0xcba7f4f44473e32dd01cd863622b2b8797681955 IN  Bridgeworld: Questing v20 ETH0.00000833 0.01
0x102586d0dc54c485229ea6332fdd4c71747f35412e2dee184171267fd14f7cb6Play Treasure Tr...2004646402024-04-13 3:43:282 hrs 50 mins ago0x4ad49a62690bb598108f50fdfc4661b54403c173 IN  Bridgeworld: Questing v20 ETH0.00000967 0.01
0x5c12229af5fbdf72cbabbcb960529ebae7fd7d015d420024a703f3c7d2153d23Play Treasure Tr...2004642842024-04-13 3:41:582 hrs 51 mins ago0xdbc50b04023fd956f13d3f2625df7fbb022b996e IN  Bridgeworld: Questing v20 ETH0.00001155 0.01
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Corruption0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Treasure DAO: Randomizer0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Legion Metadata Store0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0x37c001f463a4d61196be927e71e1f9f1b2683dbc0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0xdfc2c267e134af933d5b4a3b9566666c7ab39b9d0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Questing v20 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0x795bdd7fbab06d88af65811a3344ab495bc297b50 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0xdfc2c267e134af933d5b4a3b9566666c7ab39b9d0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Master of Inflation Bridgeworld: Questing v20 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Master of Inflation0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0x795bdd7fbab06d88af65811a3344ab495bc297b50 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0xdfc2c267e134af933d5b4a3b9566666c7ab39b9d0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Master of Inflation Bridgeworld: Questing v20 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Master of Inflation0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0x795bdd7fbab06d88af65811a3344ab495bc297b50 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0xdfc2c267e134af933d5b4a3b9566666c7ab39b9d0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Master of Inflation Bridgeworld: Questing v20 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Master of Inflation0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0x795bdd7fbab06d88af65811a3344ab495bc297b50 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 0xdfc2c267e134af933d5b4a3b9566666c7ab39b9d0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Master of Inflation Bridgeworld: Questing v20 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Master of Inflation0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Consumables0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Consumables0 ETH
0x8d78fbc4e10262c0ba599744d039b60f54a714c92a7ee82d32ad22bd27c10bca720864322023-03-21 10:17:55388 days 20 hrs ago Bridgeworld: Questing v2 Bridgeworld: Questing v10 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x6F4e8eBa4D337f874Ab57478AcC2Cb5BACdc19c9
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
TransparentUpgradeableProxy

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 : TransparentUpgradeableProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

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 inerface 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 initialLogic, address initialAdmin, bytes memory _data) payable UpgradeableProxy(initialLogic, _data) {
        assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        _setAdmin(initialAdmin);
    }

    /**
     * @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) {
        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 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 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 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) {
        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 override virtual {
        require(msg.sender != _admin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
        super._beforeFallback();
    }
}

File 3 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 4 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);
            }
        }
    }
}

Settings
{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "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":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":"","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":"","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
Block Uncle Number Difficulty Gas Used Reward
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