Contract 0x1AF7A7555263F275433c6Bb0b8FdCD231F89B1D7 2

Contract Overview

Balance:
0 Ether

Token:
Txn Hash
Method
Block
From
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Value
0x30a329a84e3c796c083f6bcf71ca4a9e64dd1383773fe64f6f20df158ae0a7c5Set Approval For...114708712022-09-30 14:16:099 hrs 22 mins ago0x5c705d541e674837a2cfdd5c35db3c8ca4f64443 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00005359 1
0x7752dc1e9fc5934d06841650a300f681586ce3c4de3c13c1b428757afe9ee740Set Approval For...114704232022-09-30 12:19:2411 hrs 19 mins ago0x8d1a5522a86018e661158472cbcc67a49e9b1cee IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.5
0x5050813dc2b2f82455e24ac0592ff38d28ee0bde0e6388c3ed9193cf5b64e3f4Mint And Transfe...114701962022-09-30 11:21:5212 hrs 17 mins ago0x8d1a5522a86018e661158472cbcc67a49e9b1cee IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00087524 3.09457762
0x0cf39240653535decc2b702b73676b731aacaf8944a5b58e61c8cbfaf9b6ceccSet Approval For...114691322022-09-30 6:50:3916 hrs 48 mins ago0x8baa54f661400d673619b47c2c206372366c61c1 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.50001423
0x7d80be43e939090d0bbafda014eebd19c72b86128cb336f3d92dd5efea022575Mint And Transfe...114681152022-09-30 2:33:4921 hrs 5 mins ago0xee9eaf82cf348db17c405419bd531b864e0ebe57 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00042424 1.50000019
0xfebc9f6886788cc917495dcc6ce37a091e4e2e875af1e0bfd573e1f56a91fa59Mint And Transfe...114640372022-09-29 9:25:281 day 14 hrs ago0x8d1a5522a86018e661158472cbcc67a49e9b1cee IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00035425 1.25254804
0xe625417d6bfd216a4630f2ae2d983587d7cf69262e8b635015793a6d22f44551Set Approval For...114635992022-09-29 7:34:461 day 16 hrs ago0xdc2311820bf9e68926a64101624fb6aacf50e466 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.0000643 1.20000001
0x7bfaf74122c5e5c68bb6ba45ab3649d6f085767580fc57d866971f8f4e4ec59eSet Approval For...114635712022-09-29 7:27:271 day 16 hrs ago0xee9eaf82cf348db17c405419bd531b864e0ebe57 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.0000643 1.20000001
0x892cbbceeccefa82a0f73e95ac55b1d9117715ee1738433c52e5a214615349abSafe Transfer Fr...114594522022-09-28 14:08:372 days 9 hrs ago0x1aa4145edb15e4e61c39fd444dd6425f474228e5 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00011972 2
0xea851d72f7dca0d266fb7d99bc8a56b12d83dd00542d6664215ae5c035581d75Set Approval For...114591532022-09-28 12:53:122 days 10 hrs ago0x98a9495bfc3c326d651f6e090b3d37d35d329241 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00005359 1
0x45cfdd8fb201874cbcdef7a75848a7903232c0b2e31ce63f35e0553a291a9f76Set Approval For...114584212022-09-28 9:48:422 days 13 hrs ago0x03ada9606ad7e7441aa6724b0dd97bc34de9ed72 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00007073 1.31985723
0x5f42903919c20df5638286e5d1b3e1b7341218a40addc2d46d85bfc8fe69dbc1Set Approval For...114583592022-09-28 9:33:092 days 14 hrs ago0xee9eaf82cf348db17c405419bd531b864e0ebe57 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00007073 1.31985723
0x1be915995b8f4a5c2537e4d52e9c7f5fc2e0d3cf39bfaf64ea503bd6e10751b4Mint And Transfe...114581472022-09-28 8:39:422 days 14 hrs ago0xee9eaf82cf348db17c405419bd531b864e0ebe57 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00037329 1.31985723
0x90af26cfa8778cafd84f5643d13fd5779ab8568c3b876e0612e28dc74421edcfSet Approval For...114536982022-09-27 13:59:233 days 9 hrs ago0x3b33229866cef2be7cc58b4a2d4bc01e2c085b1d IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.5
0x782bb00819f474e4f21527852f784b1693494410a737df9d6434ecca5e098c12Safe Transfer Fr...114528402022-09-27 10:23:233 days 13 hrs ago0x48d762ef21f1e3dc0bc264ed58281b76e24f0a46 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00009702 1.5
0x748aef2a2350f3bf046ef2a500cdfc402438ce1145af16b5becebe277d176297Set Approval For...114524892022-09-27 8:54:593 days 14 hrs ago0xba392fb6388710a70e5981c35cb036051c2ea11c IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.5
0x664591cea5f26da9b7c6b81cece8d0a8d86e473296e9773fd7616c8d31fbdaecSafe Transfer Fr...114511972022-09-27 3:29:013 days 20 hrs ago0xd55a183a44ef4ff756f75088b45254206ed543d7 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008979 1.5
0x6c44b2914ed9e5f0f48f6b2ec83d3b2e3ab442b6bf4147565cb85739ed1984e8Set Approval For...114508362022-09-27 1:58:163 days 21 hrs ago0x5b4b99264d0b0b57b44b5037ced46ef621823d16 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008026 1.5
0xe7463ad4f6a8c81424a1f4ff3c12cbca0ee5607fb2c8210f0221399a4b55cd3bSet Approval For...114499422022-09-26 22:13:314 days 1 hr ago0xa2a010aa5240483409f47342446b42bce8e55744 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.5
0x8b70fbfb4ff78a8c82889d92505d1d1f35818b139b375a79d4b6dbcfb439913cSet Approval For...114472202022-09-26 10:49:124 days 12 hrs ago0x9fe21deff42b89996e3fec690dcb979882f35202 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.5
0x39e42ba98273d49e4b2a81f32119108601cfb3b6df0da083897c59749896b45dTransfer From Or...114470982022-09-26 10:18:084 days 13 hrs ago0x7d6bd7b9071366dc6ec7a61ae2fa76877bff2096 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00043813 1.5
0x85d0e3589f3543c1babcbe1170700b8f31a038912ba01a17fa3b102103a64479Set Approval For...114470762022-09-26 10:12:384 days 13 hrs ago0x7d6bd7b9071366dc6ec7a61ae2fa76877bff2096 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008038 1.5
0x313c6ba653784a1f034c13c3557a3142f8f6eb5e85f8fb00223044cde3a4663cMint And Transfe...114458412022-09-26 5:02:134 days 18 hrs ago0x0b7f5790f119aa05b581c9e315437cf500449645 IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00042417 1.5
0x325614de6fd005bd6b6e3d845e4f959a4269bc1a2cbb94a90902e890614df660Set Approval For...114454042022-09-26 3:12:254 days 20 hrs ago0x89c0280e98057cfe751fef66d0027fbe26ce34ae IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008026 1.5
0x54c7cae3c02fea334565e4ed5f7913758c595773a863b8fbb032c3a6839a7772Safe Transfer Fr...114316722022-09-23 17:39:397 days 5 hrs ago0x945fcb04a7120474477199e55e35914f43bacabf IN  0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether0.00008915 1.4889622
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x30a329a84e3c796c083f6bcf71ca4a9e64dd1383773fe64f6f20df158ae0a7c5114708712022-09-30 14:16:099 hrs 22 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0x7752dc1e9fc5934d06841650a300f681586ce3c4de3c13c1b428757afe9ee740114704232022-09-30 12:19:2411 hrs 19 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0x5050813dc2b2f82455e24ac0592ff38d28ee0bde0e6388c3ed9193cf5b64e3f4114701962022-09-30 11:21:5212 hrs 17 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0xe113419a54de31344e176da993520369c914f23b 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0xb319000e17ed1e7f1b49bc92ff50831c30e0bf4e 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0xb319000e17ed1e7f1b49bc92ff50831c30e0bf4e 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x12d1917bf449683cfc0b5dbdf84de3a0f9d25772 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xb78f094cbfae28a9c5d0c31c5c9f8a08af60d41bcb61773e1af521d4b3f04de5114691352022-09-30 6:51:2516 hrs 47 mins ago 0x12d1917bf449683cfc0b5dbdf84de3a0f9d25772 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0x0cf39240653535decc2b702b73676b731aacaf8944a5b58e61c8cbfaf9b6cecc114691322022-09-30 6:50:3916 hrs 48 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0xe113419a54de31344e176da993520369c914f23b 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0xb319000e17ed1e7f1b49bc92ff50831c30e0bf4e 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0xb319000e17ed1e7f1b49bc92ff50831c30e0bf4e 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x12d1917bf449683cfc0b5dbdf84de3a0f9d25772 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 Ether
0xfb53d8365131f206f4088eb7acb845f04f09f0c07e1542f1e93c2af605bc9900114683152022-09-30 3:24:3820 hrs 14 mins ago 0x12d1917bf449683cfc0b5dbdf84de3a0f9d25772 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d70 Ether
0xbaf5afc9060edb1918267343abbb892995547c8d209bbe8b8d254e816201d92e114681982022-09-30 2:54:3620 hrs 44 mins ago 0x1af7a7555263f275433c6bb0b8fdcd231f89b1d7 0x0e7f7abe78b23a830dab478066d8c58b754167ff0 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.