Contract 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0

 

Contract Overview

Balance:
0 ETH

ETH Value:
$0.00

Token:
Txn Hash Method
Block
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To
Value [Txn Fee]
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5fRedeem Underlyin...418663432022-11-28 11:41:2447 mins ago0x1aa008151d2dd54679a48653b4527bb4ca82e3fe IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003801
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0xd6948f3babb3e635ccb3f4f4163326ac27fb9b92befef2a9c2ef27bb0a978cccRedeem Underlyin...418605542022-11-28 11:13:151 hr 16 mins ago0xd42b63493e0c7ab1879adbc134e8a07eaa999d3e IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00006561
0x884f399e338d30f603f7258aa01d6ffb2fd69504e00b296621931f2b0e55ad4dMint418513172022-11-28 10:23:192 hrs 6 mins ago0x35e2a11f743a43f00381a0aeb6764322ef1eb788 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003741
0xb1ca7f9da034f9490ccfd875f78e05908b57d7a9755a66a814862d0c8a80a5bfRedeem Underlyin...418417252022-11-28 9:31:292 hrs 57 mins ago0x35e2a11f743a43f00381a0aeb6764322ef1eb788 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00005935
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0x5edce2f5778761ceb6376f955ccf210a3eccb4f436323b2d855e2629f017302cMint418333822022-11-28 8:49:553 hrs 39 mins ago0x6caacd0299294bb01b89298e26d57040cc85c833 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003487
0xc76b9e417b77081cf81f662c0bd4e76949b185fa5b5a5e74a9d57d11e68eb6b8Redeem418291002022-11-28 8:28:214 hrs 1 min ago0xb63d1e51c6ae1d25937feba65f1f9291bacbbf01 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003382
0xcaaed83f7b45d91dcf14039e387960cdd89c2595a9e2ec93655df5b3e2727ff7Redeem418240162022-11-28 8:01:584 hrs 27 mins ago0x3be4f1943b30eb61391fca1bd53f85517be8f66f IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00006026
0x26ffd9c699650294ed0042301079c998419a133e1a10db4b6060ac7fe340e7d1Mint418217032022-11-28 7:49:204 hrs 40 mins ago0x3be4f1943b30eb61391fca1bd53f85517be8f66f IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.0000331
0x25e1f238eeaaa01989576cb77d5759e8cd1fc83366a595fb433e2f5385e1de40Repay Borrow418216522022-11-28 7:49:044 hrs 40 mins ago0x3be4f1943b30eb61391fca1bd53f85517be8f66f IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003158
0x7401a18d3dfe47fc33c3e65a4cb45390783dcb4780ec52151eb29e397decc872Borrow418168802022-11-28 7:23:025 hrs 6 mins ago0x3be4f1943b30eb61391fca1bd53f85517be8f66f IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.0000674
0x3bad9c41f4fcb2dfe26f1b83571748a99fbd169b69aa8196fbef75238e6ccf7aRedeem Underlyin...418152072022-11-28 7:13:215 hrs 16 mins ago0x943980b467fe194beb923daf7a544abce90b5f93 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00005824
0x0cfa7d4727fbb39a5516246bbfd44112fcb3d1e799a413c38729b328c0fe97f3Mint418140452022-11-28 7:06:265 hrs 22 mins ago0x943980b467fe194beb923daf7a544abce90b5f93 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003306
0xdc0575bfafa1bae8ed0bc9e22fff01886884a49d7fc5522b73f248b10d31c555Mint418098442022-11-28 6:43:475 hrs 45 mins ago0xa2a01b4a68575280a2de45178e289da717bedb6f IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003649
0x650c1b35708aea9df67c9b9b90ee68bd1daddb5c5e70a218cee5bb7f55c82430Mint418063532022-11-28 6:23:186 hrs 6 mins ago0xfec5aa941600de04bfd0f3cfc94a78ba8bf63fd9 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003353
0x85e477e9ead8f0c998edaba02b92205efaec4e7339fd07c62ce515eb139835ccMint418054972022-11-28 6:18:156 hrs 11 mins ago0x2addc7f701c9a2698dbd931a4d587940c3665cfa IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.0000362
0xb4dcb51031ae873849b469608835e26731d8caebccef9ee5dc93e2bb358dae0cMint417949912022-11-28 5:13:597 hrs 15 mins ago0x88dc672624b511dbf08881624629a13af10acfce IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003726
0x39531805e6762cd5a0b6697ef33a8c959d437377c62bd37bcb7d61c3da80257bRedeem Underlyin...417942122022-11-28 5:08:027 hrs 21 mins ago0xaff5459a66575d7fcbc9f1cb6021ccd978ef32af IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00005897
0xea9ed86b23098cf008ae3d7331048357ac7e093c980366304916880e4fccc256Mint417931212022-11-28 5:00:177 hrs 29 mins ago0xaff5459a66575d7fcbc9f1cb6021ccd978ef32af IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003664
0x60aade31c50e01c3f74b0e01c5f1f3708a6c915156877e90c435625f939400adRedeem Underlyin...417829482022-11-28 3:51:248 hrs 37 mins ago0x120ebfe81c44003cd5351731709e30f9681daf74 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00004764
0x1e125f23da434165f03a5d5923574969ac98ac52611d346f73d6426d8b8d7cbdRepay Borrow417742852022-11-28 3:03:269 hrs 25 mins ago0x5aad650bf33a6c6cbf4512857c5759ff1a221893 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00003377
0xf907a65314e3972634b7fec75cb2e089fe1e93259b9dcb27610c612a4cdbcb12Borrow417742142022-11-28 3:03:059 hrs 26 mins ago0x5aad650bf33a6c6cbf4512857c5759ff1a221893 IN  0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH0.00005873
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Latest 25 internal transaction
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0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x8e7e9ea9023b81457ae7e6d2a51b003d421e54080 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0xf45e2ae152384d50d4e9b08b8a1f65f0d96786c3 0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0xf45e2ae152384d50d4e9b08b8a1f65f0d96786c3 0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x8e7e9ea9023b81457ae7e6d2a51b003d421e54080 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xaf72329e42d0be8bee137bc3420f20fc04a49efb0 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0x95b5f7c373acd9782d267895cf16ac275aae1a24b60d9b0cd0c1136ad535ac5f418663432022-11-28 11:41:2447 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x8e7e9ea9023b81457ae7e6d2a51b003d421e54080 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0xf45e2ae152384d50d4e9b08b8a1f65f0d96786c3 0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0xf45e2ae152384d50d4e9b08b8a1f65f0d96786c3 0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8e7e9ea9023b81457ae7e6d2a51b003d421e5408 0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0xff970a61a04b1ca14834a43f5de4533ebddb5cc80 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8dc3312c68125a94916d62b97bb5d925f84d4ae0 0x45b5636b01091336f02194d327374924d54a07720 ETH
0xd4c1cd97d50c1feb05dbffdcedde871320f560f5bceb239d266f7128e4e8e266418659462022-11-28 11:39:4049 mins ago 0x8e7e9ea9023b81457ae7e6d2a51b003d421e5408 0x8dc3312c68125a94916d62b97bb5d925f84d4ae00 ETH
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x641441c631e2F909700d2f41FD87F0aA6A6b4EDb

Contract Name:
TransparentUpgradeableProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

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

pragma solidity >=0.6.0 <0.8.0;

import "./UpgradeableProxy.sol";

/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 * 
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 * 
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 * 
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 * 
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
 */
contract TransparentUpgradeableProxy is UpgradeableProxy {
    /**
     * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
     * optionally initialized with `_data` as explained in {UpgradeableProxy-constructor}.
     */
    constructor(address _logic, address admin_, bytes memory _data) public payable UpgradeableProxy(_logic, _data) {
        assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        _setAdmin(admin_);
    }

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 private constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Returns the current admin.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
     * 
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function admin() external ifAdmin returns (address admin_) {
        admin_ = _admin();
    }

    /**
     * @dev Returns the current implementation.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
     * 
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
     */
    function implementation() external ifAdmin returns (address implementation_) {
        implementation_ = _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * 
     * Emits an {AdminChanged} event.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
     */
    function changeAdmin(address newAdmin) external 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 2 of 4 : UpgradeableProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./Proxy.sol";
import "../utils/Address.sol";

/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 * 
 * Upgradeability is only provided internally through {_upgradeTo}. For an externally upgradeable proxy see
 * {TransparentUpgradeableProxy}.
 */
contract UpgradeableProxy is Proxy {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     * 
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) public payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _setImplementation(_logic);
        if(_data.length > 0) {
            // 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 : Proxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 * 
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 * 
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     * 
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal {
        // 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 () external payable {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () external payable {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     * 
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {
    }
}

File 4 of 4 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"admin_","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"admin_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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