Contract 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8

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0xb7119d513ed0c050ce542c05d9d9ae118642f90b9baf989d2ebda8babebe2f1aApprove92518872021-05-29 0:54:32119 days 2 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046818
0x50ec262a7c8e1e8a52622004a987047b0578e5a89077bf1a6278fee6f0397158Approve92518252021-05-29 0:51:26119 days 2 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046806
0xf52d2de37f73815cac5e17249a8c4001712f55319729558361cc848450a034c2Approve92403012021-05-28 15:15:14119 days 12 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00031806
0x983c3ec2e0a0a2691ca2d4cbe8a7c5dd580dd9bc1aa5b94572e8204fd06f4ccbTransfer92402692021-05-28 15:13:38119 days 12 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00054187
0x4acca70fd62c838c174e693a3b75b1d607ad5e2e18f00415d791a98e0c6f582eApprove92402292021-05-28 15:11:38119 days 12 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046806
0x6bd832c36ef64d68c627c20f5a85b8866d5af8b7b2791b1327a3d64318b26673Approve92402212021-05-28 15:11:14119 days 12 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00027606
0x51c9b7c05d7bf35665263f82ce7d2398a7f0ee9fff51eb2e432b6759ee52c07bApprove92402102021-05-28 15:10:41119 days 12 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046806
0x0bfaac56af30d9d1071c52915abc81f5dd53b0da4bfba636baf7c5f76d80f043Approve92401812021-05-28 15:09:14119 days 12 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046806
0xcb4ea4ec264bfa5e80b870bfce0624b63e43f68ab0578954a09cb75e686d1d08Approve92401692021-05-28 15:08:38119 days 12 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x70613aa748c92df58dc97f414edb0f77f63040405113ab602587132e2623e3a8Approve92401152021-05-28 15:05:56119 days 12 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00031806
0xedb67a4872a62bf133043ffb2a988a2bcd04c1accdaa848c9622020c0a895bacApprove92399672021-05-28 14:58:32119 days 12 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00031806
0xb9cf3e1833fdaf706f1b9f195ad86e6e6e4e8e3e14af8da3471e51d444f58feaApprove92399522021-05-28 14:57:47119 days 12 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00027594
0x034aecdaf8aea405cc6d2adf8dd9e4947fc69454d6203ea52c298e7d7228fbfeApprove92399462021-05-28 14:57:29119 days 12 hrs ago0x1b8e5608e66cb5d31c520df1571c3d1cb8dc7976 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x84afb8b9e56a67ce1accd946165a7e07886ecd16a238e40ec8584852994d13a6Approve92385632021-05-28 13:48:20119 days 13 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x65337cc86d356a0176fdabaa6b3db59d69b4ceaf306f8099120a3915c53d080cApprove92383172021-05-28 13:36:02119 days 13 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00027594
0xb112bf54fd2624f659310472051adc402d7cde6761b02c22239cff4d383a0657Approve92383132021-05-28 13:35:50119 days 13 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x91d9a3b2c28f76b6b12f56c07a851621d69f0a71439c9e71cacab876e6fb0367Approve92335032021-05-28 9:35:20119 days 17 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x8661cdc7a0b468d2905f217d2d4ff6d5f87e3d9ae761d3e15f7564c8ab231865Approve92331472021-05-28 9:17:32119 days 18 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00031794
0xbe57c4a50810904c3ada3168ebdeaa6486c3a3b6eaea681178c93d816873d969Approve89821882021-05-19 15:45:11128 days 11 hrs ago0x4f80e11dfdf16ac716adf3687f9632ebecbb84e0 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x314629eec66be4b893281cbd6cc3342bda072222e03d16580874b3a64b33fd4eApprove89820162021-05-19 15:36:35128 days 11 hrs ago0x4f80e11dfdf16ac716adf3687f9632ebecbb84e0 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046806
0x5b93e44d2dd58eea40d799d98a08c90340d4e9376cec3fad46b0a340cbb7e95fApprove89745042021-05-19 9:20:59128 days 18 hrs ago0x4f80e11dfdf16ac716adf3687f9632ebecbb84e0 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00027606
0x95ee24e3e6ba0335898ff98380ba50f0513c0a81778329b97b8f516fc3b82edfApprove89744992021-05-19 9:20:44128 days 18 hrs ago0x4f80e11dfdf16ac716adf3687f9632ebecbb84e0 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046806
0x61a12d9bb3bdea114323f008e686a8141055d0a36309cf6629a461dc5f9b8a5dApprove89731952021-05-19 8:15:32128 days 19 hrs ago0x4f80e11dfdf16ac716adf3687f9632ebecbb84e0 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0xae9b33fe374bf7783c70b34fbe513907d4ff9294aca0487d8068e3e91ecf1899Approve89713992021-05-19 6:45:44128 days 20 hrs ago0x8d8d8de95df82455c887661ada3f3fa07e93fbbd IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00046794
0x077023d402df09ff31bbf9aa26c426b909d2258a5e38d367fa76a6f2128c2cc7Transfer89709002021-05-19 6:20:47128 days 21 hrs ago0xf16afa5bd816c84844864ed1109f21144ef49aa4 IN  0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB0.00054175
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0x825aeb170388b8c178590bfbb1f8ee0291124a907219fca371f8af6bac6d3cc592518872021-05-29 0:54:32119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x825aeb170388b8c178590bfbb1f8ee0291124a907219fca371f8af6bac6d3cc592518872021-05-29 0:54:32119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x825aeb170388b8c178590bfbb1f8ee0291124a907219fca371f8af6bac6d3cc592518872021-05-29 0:54:32119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x825aeb170388b8c178590bfbb1f8ee0291124a907219fca371f8af6bac6d3cc592518872021-05-29 0:54:32119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x825aeb170388b8c178590bfbb1f8ee0291124a907219fca371f8af6bac6d3cc592518872021-05-29 0:54:32119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x825aeb170388b8c178590bfbb1f8ee0291124a907219fca371f8af6bac6d3cc592518872021-05-29 0:54:32119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0xb7119d513ed0c050ce542c05d9d9ae118642f90b9baf989d2ebda8babebe2f1a92518872021-05-29 0:54:32119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x2a448b73632a1669b0f8d86fe8fde1582d6148fd627d8dfc1b77f2120dacab7f92518252021-05-29 0:51:26119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x2a448b73632a1669b0f8d86fe8fde1582d6148fd627d8dfc1b77f2120dacab7f92518252021-05-29 0:51:26119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x2a448b73632a1669b0f8d86fe8fde1582d6148fd627d8dfc1b77f2120dacab7f92518252021-05-29 0:51:26119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x2a448b73632a1669b0f8d86fe8fde1582d6148fd627d8dfc1b77f2120dacab7f92518252021-05-29 0:51:26119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x2a448b73632a1669b0f8d86fe8fde1582d6148fd627d8dfc1b77f2120dacab7f92518252021-05-29 0:51:26119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x2a448b73632a1669b0f8d86fe8fde1582d6148fd627d8dfc1b77f2120dacab7f92518252021-05-29 0:51:26119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x50ec262a7c8e1e8a52622004a987047b0578e5a89077bf1a6278fee6f039715892518252021-05-29 0:51:26119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x5f3893ae9f7d6c37e79e32a458bf6c3e45fcd80fd8a71e8010d0e6e6acf2e2dc92518032021-05-29 0:50:20119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x5f3893ae9f7d6c37e79e32a458bf6c3e45fcd80fd8a71e8010d0e6e6acf2e2dc92518032021-05-29 0:50:20119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x5f3893ae9f7d6c37e79e32a458bf6c3e45fcd80fd8a71e8010d0e6e6acf2e2dc92518032021-05-29 0:50:20119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x5f3893ae9f7d6c37e79e32a458bf6c3e45fcd80fd8a71e8010d0e6e6acf2e2dc92518032021-05-29 0:50:20119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0x5f3893ae9f7d6c37e79e32a458bf6c3e45fcd80fd8a71e8010d0e6e6acf2e2dc92518032021-05-29 0:50:20119 days 2 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0x5f3893ae9f7d6c37e79e32a458bf6c3e45fcd80fd8a71e8010d0e6e6acf2e2dc92518032021-05-29 0:50:20119 days 2 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0xc916472436c10b9686f2a1cb4ec09f191eb74aea00161f40a5e0972e50e4747992403022021-05-28 15:15:17119 days 12 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0xc916472436c10b9686f2a1cb4ec09f191eb74aea00161f40a5e0972e50e4747992403022021-05-28 15:15:17119 days 12 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0xc916472436c10b9686f2a1cb4ec09f191eb74aea00161f40a5e0972e50e4747992403022021-05-28 15:15:17119 days 12 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
0xc916472436c10b9686f2a1cb4ec09f191eb74aea00161f40a5e0972e50e4747992403022021-05-28 15:15:17119 days 12 hrs ago 0xc235df7619b25b462536f8ed7f3b8ebb7f3040e4 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe80 BNB
0xc916472436c10b9686f2a1cb4ec09f191eb74aea00161f40a5e0972e50e4747992403022021-05-28 15:15:17119 days 12 hrs ago 0x9d740f3e101cc07e52c0cde606d3e21cae02bbe8 0x99b8884cf9b63a30667c58b3a3c956b06b87f0040 BNB
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xBc775a24BC0172f835cE67BbFEbc453CB3c53DF0

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

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

pragma solidity ^0.6.0;

import './UpgradeabilityProxy.sol';

/**
 * @title AdminUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * All external functions in this contract must be guarded by the
 * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
 * feature proposal that would enable this to be done automatically.
 */
contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
  /**
   * Contract constructor.
   * @param _logic address of the initial implementation.
   * @param _admin Address of the proxy administrator.
   * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
   */
  constructor(address _logic, address _admin, bytes memory _data) UpgradeabilityProxy(_logic, _data) public payable {
    assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
    _setAdmin(_admin);
  }

  /**
   * @dev Emitted when the administration has been transferred.
   * @param previousAdmin Address of the previous admin.
   * @param newAdmin Address of the new admin.
   */
  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 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

  /**
   * @dev Modifier to check whether the `msg.sender` is the admin.
   * If it is, it will run the function. Otherwise, it will delegate the call
   * to the implementation.
   */
  modifier ifAdmin() {
    if (msg.sender == _admin()) {
      _;
    } else {
      _fallback();
    }
  }

  /**
   * @return The address of the proxy admin.
   */
  function admin() external ifAdmin returns (address) {
    return _admin();
  }

  /**
   * @return The address of the implementation.
   */
  function implementation() external ifAdmin returns (address) {
    return _implementation();
  }

  /**
   * @dev Changes the admin of the proxy.
   * Only the current admin can call this function.
   * @param newAdmin Address to transfer proxy administration to.
   */
  function changeAdmin(address newAdmin) external ifAdmin {
    require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
    emit AdminChanged(_admin(), newAdmin);
    _setAdmin(newAdmin);
  }

  /**
   * @dev Upgrade the backing implementation of the proxy.
   * Only the admin can call this function.
   * @param newImplementation Address of the new implementation.
   */
  function upgradeTo(address newImplementation) external ifAdmin {
    _upgradeTo(newImplementation);
  }

  /**
   * @dev Upgrade the backing implementation of the proxy and call a function
   * on the new implementation.
   * This is useful to initialize the proxied contract.
   * @param newImplementation Address of the new implementation.
   * @param data Data to send as msg.data in the low level call.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   */
  function upgradeToAndCall(address newImplementation, bytes calldata data) payable external ifAdmin {
    _upgradeTo(newImplementation);
    (bool success,) = newImplementation.delegatecall(data);
    require(success);
  }

  /**
   * @return adm The admin slot.
   */
  function _admin() internal view returns (address adm) {
    bytes32 slot = ADMIN_SLOT;
    assembly {
      adm := sload(slot)
    }
  }

  /**
   * @dev Sets the address of the proxy admin.
   * @param newAdmin Address of the new proxy admin.
   */
  function _setAdmin(address newAdmin) internal {
    bytes32 slot = ADMIN_SLOT;

    assembly {
      sstore(slot, newAdmin)
    }
  }

  /**
   * @dev Only fall back when the sender is not the admin.
   */
  function _willFallback() internal override virtual {
    require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
    super._willFallback();
  }
}

File 2 of 4 : UpgradeabilityProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import './Proxy.sol';
import '@openzeppelin/contracts/utils/Address.sol';

/**
 * @title UpgradeabilityProxy
 * @dev This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 */
contract UpgradeabilityProxy is Proxy {
  /**
   * @dev Contract constructor.
   * @param _logic Address of the initial implementation.
   * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
   */
  constructor(address _logic, bytes memory _data) public payable {
    assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
    _setImplementation(_logic);
    if(_data.length > 0) {
      (bool success,) = _logic.delegatecall(_data);
      require(success);
    }
  }  

  /**
   * @dev Emitted when the implementation is upgraded.
   * @param implementation Address of the new implementation.
   */
  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 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

  /**
   * @dev Returns the current implementation.
   * @return impl Address of the current implementation
   */
  function _implementation() internal override view returns (address impl) {
    bytes32 slot = IMPLEMENTATION_SLOT;
    assembly {
      impl := sload(slot)
    }
  }

  /**
   * @dev Upgrades the proxy to a new implementation.
   * @param newImplementation Address of the new implementation.
   */
  function _upgradeTo(address newImplementation) internal {
    _setImplementation(newImplementation);
    emit Upgraded(newImplementation);
  }

  /**
   * @dev Sets the implementation address of the proxy.
   * @param newImplementation Address of the new implementation.
   */
  function _setImplementation(address newImplementation) internal {
    require(Address.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

    bytes32 slot = IMPLEMENTATION_SLOT;

    assembly {
      sstore(slot, newImplementation)
    }
  }
}

File 3 of 4 : Proxy.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
abstract contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
  fallback () payable external {
    _fallback();
  }

  /**
   * @dev Receive function.
   * Implemented entirely in `_fallback`.
   */
  receive () payable external {
    _fallback();
  }

  /**
   * @return The Address of the implementation.
   */
  function _implementation() internal virtual view returns (address);

  /**
   * @dev Delegates execution to an implementation contract.
   * This is a low level function that doesn't return to its internal call site.
   * It will return to the external caller whatever the implementation returns.
   * @param implementation Address to delegate.
   */
  function _delegate(address implementation) internal {
    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 Function that is run as the first thing in the fallback function.
   * Can be redefined in derived contracts to add functionality.
   * Redefinitions must call super._willFallback().
   */
  function _willFallback() internal virtual {
  }

  /**
   * @dev fallback implementation.
   * Extracted to enable manual triggering.
   */
  function _fallback() internal {
    _willFallback();
    _delegate(_implementation());
  }
}

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

pragma solidity >=0.6.2 <0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

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

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

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

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

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"_admin","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","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"}]

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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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