Contract 0x679b11E0229959C1D3D27C9d20529E4C5DF7997c 1

Txn Hash
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0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcfForge Batch109665542022-07-04 17:21:266 hrs 48 mins ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0206341433
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0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89Forge Batch109613122022-07-03 19:28:271 day 4 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0103152216.5
0x693e9beea293442dbf2f359da1f197d8598e5957c6679545b23d720bdaf2da51Add L1Transactio...109612942022-07-03 19:23:571 day 4 hrs ago0x608cfc1575b56a82a352f14d61be100fa9709d75 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.00019517 1.5
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0Forge Batch109563332022-07-02 22:41:252 days 1 hr ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0100387615.4
0x5e2866bbe46321440f523a9dd4f52e146263abb91b74271ba029e894c179590aForge Batch109548862022-07-02 16:39:142 days 7 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0145873723.1
0x6fde357d0378da4260da927c0a54e731cea3ab75b625bcb131ad1ca4e825f727Withdraw Circuit109547952022-07-02 16:16:272 days 7 hrs ago0xbbac61fa8e3bbe854cd2d36a300bdb1493d6402c IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0007369 2.5
0x9a354205c185f2ad548638fdc6e2fc9a1f8f4bf5b004243f7b7236e2579b1451Forge Batch109524452022-07-02 6:28:072 days 17 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0076422112.1
0xaa553876e8ef74d91734331fc2d44b988a9cdcb6cb472340de83726cecd1dec6Forge Batch109510152022-07-02 0:30:012 days 23 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0159785625.3
0x9f50762748ba67ca79855db5ece9260acad4a403be12925aec95d83ce2948340Forge Batch109489442022-07-01 15:51:313 days 8 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0584633993.5
0xe10204c7c19ec40f3acbee189811381d0c16bc7a511bda2f0839c732410691caForge Batch109483902022-07-01 13:32:423 days 10 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0136777320.9
0x077c7710f52c559043844e366a07411fc91887bd597ef4d2ff804b2f5295c7c6Forge Batch109469432022-07-01 7:30:243 days 16 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0089409414.3
0xa8f401ca20019fcd37c94aa2a4801c01a905d0c219f1c855f4ac9f18cda7d0d5Withdraw Circuit109455722022-07-01 1:47:013 days 22 hrs ago0x608cfc1575b56a82a352f14d61be100fa9709d75 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.00046048 1.5
0xf724b99ce4bfba03ddd41557bda59b1478e6ed6aa626f30d65c3ed8fd13b14e2Forge Batch109455362022-07-01 1:38:003 days 22 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.015772324.2
0x1bcdd5b345c5771eb17178d0fb07f28325b42ae1f4fbb2d150ef445a3ec505e7Forge Batch109435482022-06-30 17:20:084 days 6 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.11965658191.4
0x8011a668ac9de5d0302ad85e5190884a055d7f4eb0d6b7b3662a7c669b73ceb6Forge Batch109432872022-06-30 16:14:474 days 7 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0292283846.2
0xa00a972acca2e05c7865cc20f62a193d190ddf5d82fca4f27bc929dbb9d3eb41Forge Batch109417672022-06-30 9:54:104 days 14 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0458210572.6
0x25b4012a0bde3732523ffe1ece599482f1179b185fe924a78e7eb936517ee9f7Add L1Transactio...109414972022-06-30 8:46:354 days 15 hrs ago0xbbac61fa8e3bbe854cd2d36a300bdb1493d6402c IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0.2 Ether0.00027094 2.50000002
0xcac04afb4486e1627de63ceee5b52487c0e575b53eb8a737a8430217a484f7dfForge Batch109365832022-06-29 12:15:545 days 11 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0233811737.4
0xd32f01cdb97a710cfbf3b1b649f831f551ef6386e5bef919848a3fc32b21e37dForge Batch109330352022-06-28 21:27:266 days 2 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0613607897.9
0x8d7a603fffd58e846ec9e41e4ace979d20f4429e6aa9cc168214f0f9cfa2c148Forge Batch109315972022-06-28 15:27:186 days 8 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0392992362.7
0x7820d43219d9499bd0aabd9bbba75499cae3103e22e1afaeff1c115fc9300c9eAdd L1Transactio...109305242022-06-28 10:58:296 days 13 hrs ago0xf2700a4f973998496f09051c2e1075de40d69f8b IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0.1 Ether0.00027094 2.5
0xd5be541576f1e8ce4109c5fb82faa05378eada722c1010aeecf1dcad96d9584fForge Batch109301602022-06-28 9:27:136 days 14 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.0180517428.6
0xbebb8f95e6e8e26f5e155b4d16663b5e0238993ed2c5ae55c45b6e338ed76a2cAdd L1Transactio...109301342022-06-28 9:20:406 days 14 hrs ago0xf2700a4f973998496f09051c2e1075de40d69f8b IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0.1 Ether0.00027094 2.5000019
0x7f6f8a75ff38142fa18b5fc310696edee7f7a1da9e24f8b23c7bae867a3201b7Forge Batch109261082022-06-27 16:32:137 days 7 hrs ago0x4fc28cd8d35b6fd644e5c1822d67609c11e137f2 IN  0x679b11e0229959c1d3d27c9d20529e4c5df7997c0 Ether0.07168967114.4
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Latest 25 internal transaction
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0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcf109665542022-07-04 17:21:266 hrs 48 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcf109665542022-07-04 17:21:266 hrs 48 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcf109665542022-07-04 17:21:266 hrs 48 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x1dc4b451dfcd0e848881ede8c7a99978f00b13420 Ether
0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcf109665542022-07-04 17:21:266 hrs 48 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcf109665542022-07-04 17:21:266 hrs 48 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0x2b701cd31b3d5c3c7cfbe65c1cf44e295393773d7565e8d8c1ac66cece1a3bcf109665542022-07-04 17:21:266 hrs 48 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0xce1e1f1e6ee004fbf3d07ef40347e57a7c58934e0 Ether
0xeb98147cae0b406b0d093af450534e52e8f38ce1637f8db1a0e5449e9db0ad2a109627582022-07-04 1:30:2822 hrs 39 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0xeb98147cae0b406b0d093af450534e52e8f38ce1637f8db1a0e5449e9db0ad2a109627582022-07-04 1:30:2822 hrs 39 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0xeb98147cae0b406b0d093af450534e52e8f38ce1637f8db1a0e5449e9db0ad2a109627582022-07-04 1:30:2822 hrs 39 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x1dc4b451dfcd0e848881ede8c7a99978f00b13420 Ether
0xeb98147cae0b406b0d093af450534e52e8f38ce1637f8db1a0e5449e9db0ad2a109627582022-07-04 1:30:2822 hrs 39 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0xeb98147cae0b406b0d093af450534e52e8f38ce1637f8db1a0e5449e9db0ad2a109627582022-07-04 1:30:2822 hrs 39 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0xeb98147cae0b406b0d093af450534e52e8f38ce1637f8db1a0e5449e9db0ad2a109627582022-07-04 1:30:2822 hrs 39 mins ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0xce1e1f1e6ee004fbf3d07ef40347e57a7c58934e0 Ether
0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89109613122022-07-03 19:28:271 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89109613122022-07-03 19:28:271 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89109613122022-07-03 19:28:271 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x1dc4b451dfcd0e848881ede8c7a99978f00b13420 Ether
0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89109613122022-07-03 19:28:271 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89109613122022-07-03 19:28:271 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0x93aec7c7b570076d0e44ab0127c98122e865ead2434efce7bf937a62d47d3c89109613122022-07-03 19:28:271 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0xce1e1f1e6ee004fbf3d07ef40347e57a7c58934e0 Ether
0x693e9beea293442dbf2f359da1f197d8598e5957c6679545b23d720bdaf2da51109612942022-07-03 19:23:571 day 4 hrs ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0xce1e1f1e6ee004fbf3d07ef40347e57a7c58934e0 Ether
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0109563332022-07-02 22:41:252 days 1 hr ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0109563332022-07-02 22:41:252 days 1 hr ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0109563332022-07-02 22:41:252 days 1 hr ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x1dc4b451dfcd0e848881ede8c7a99978f00b13420 Ether
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0109563332022-07-02 22:41:252 days 1 hr ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c0x00000000000000000000000000000000000000020 Ether
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0109563332022-07-02 22:41:252 days 1 hr ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0x0a8a6d65ad9046c2a57a5ca8bab2ae9c3345316d0 Ether
0x33f6cfb18b2c6b9d4d5270993362235a45b8e5f762be278299c11dfef4f9d5c0109563332022-07-02 22:41:252 days 1 hr ago 0x679b11e0229959c1d3d27c9d20529e4c5df7997c 0xce1e1f1e6ee004fbf3d07ef40347e57a7c58934e0 Ether
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xF66af346a08b144a6664654823c34F63100901B5

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.6.8+commit.0bbfe453

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);
    }

    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":"","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 Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.