Contract 0xa9ea4b786ee5b7a733c035564bfd9341a4c9fc1e 1

 
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x273fca14491342070712aefd4c82041db3dc109860b504241274a720e99bb68bTransfer145032132022-01-19 14:08:4518 mins ago0x56b6eabeff8420a2f8271e013f72061b6e1e132e IN  APEcoin: APE Token0 BNB0.000195685
0xa0073397f1a419bf350aa9e716dc2fcebdb7f6b60b78d621416c0bcd90d45ff2Approve144828352022-01-18 21:04:0417 hrs 23 mins ago0x7050f5dfa54a08cc69719294dcb95882fd289d3f IN  APEcoin: APE Token0 BNB0.00023627
0xa52536dc634e5d47009a74d18a384bb6ad20d9ebc6847cc71e51b6263c767d89Approve144807642022-01-18 19:20:3119 hrs 6 mins ago0x8eb0a8890cfab23d071d14ff3e389f32a7e2d9ac IN  APEcoin: APE Token0 BNB0.00023627
0x1d96710ad20ba5ef6aabdb00d9a1aa6a6e1e19c6cf564c3208841b4e7d16fa86Transfer144787142022-01-18 17:37:5420 hrs 49 mins ago0x6b72a413c666cb07deeeb1199e7adf24dc7c9956 IN  APEcoin: APE Token0 BNB0.000270625
0xde33a645abcd40b886336c0c5c2c2496882244f54fff49abbdd71e9efa7cccfeApprove144669632022-01-18 7:34:171 day 6 hrs ago0xc1450a3234d3adabb2587e508bfd837ddbb15499 IN  APEcoin: APE Token0 BNB0.00023627
0xb3464ba22cfef98383b3b01fd16fd80d34fe6cc4570de81e6b086a29aa01e164Approve144602722022-01-18 1:56:371 day 12 hrs ago0x53aac7ad148feaa99ca5ef66d10c1825ec53dd3d IN  APEcoin: APE Token0 BNB0.00023627
0x1bff8dcdf1084b5da05437230117d568356fe496e12eed82e928e6131b5fd00fApprove144523642022-01-17 19:17:481 day 19 hrs ago0x259cdda876f94cfde72a16cbeda552a17bac05cd IN  APEcoin: APE Token0 BNB0.00023627
0xb8da6c927fb5d7f6320580164c2e33fb5440eeff9f32a6aa1c6d510166c1c585Approve144478232022-01-17 15:25:271 day 23 hrs ago0xf4342eb19067a643db0d49fe6d224e0db502e989 IN  APEcoin: APE Token0 BNB0.000283524
0xa466819b8ffd9121cfaa4fda5fd90bff8044db17ddd4752424a7d287c18a5a2dApprove144413032022-01-17 9:56:172 days 4 hrs ago0xe68821141dbd09ee6bee35c2c7b447123e691066 IN  APEcoin: APE Token0 BNB0.000283524
0x0de7d2092689418761a184774d17fb50257805983ef0202d8f8d8583f2551451Approve144189712022-01-16 15:12:312 days 23 hrs ago0x0b76e9558ee5f819a2c26a3e941b170cec2e5612 IN  APEcoin: APE Token0 BNB0.00023627
0xe594254555d8eb8a9640b3c70860d5c036bac0470cc86ed2da5717fda2d54b82Approve144168722022-01-16 13:26:483 days 1 hr ago0x303957944dedef53c9511ac045ebff2aa51f0025 IN  APEcoin: APE Token0 BNB0.000283524
0xabdef43a30c7d9b782854b502a1067f2be9175f284890fccfaaaa97bdf0d2b4cApprove144100942022-01-16 7:47:023 days 6 hrs ago0xbb613759eca25bfc543b24403954acd38bf3261b IN  APEcoin: APE Token0 BNB0.00023627
0x1ce69c10d184dd9268f9f59f77e829f61f74274ae2c2c643cd0b3284ab34fbbdApprove144018052022-01-16 0:52:343 days 13 hrs ago0x8723af66e4377df827b9135b8bca3d4352d0f130 IN  APEcoin: APE Token0 BNB0.00023627
0x98d89fdf24c8ee25ec8d049ec3717d532d2a44016a74e1a9126a08ac3b687dc9Approve143992702022-01-15 22:45:473 days 15 hrs ago0xb1a45a65df6fe5e21759d9de30719dee74d98436 IN  APEcoin: APE Token0 BNB0.00023627
0x169a918492287057f3ba069cba36d7ca86e8104fa481556680432721bc7e825aTransfer143944082022-01-15 18:39:023 days 19 hrs ago0x7bb8c174a9b00e8e54c18c4232973477e01fcd06 IN  APEcoin: APE Token0 BNB0.000195625
0x5010ee9d035d35c5bedca86ddcf024a98adcf575e75def5941cad312ee10ab66Approve143749982022-01-15 2:26:554 days 12 hrs ago0x7a04edd209e8697cdf410da21f8f52f45a3c52ae IN  APEcoin: APE Token0 BNB0.000283524
0x08a7228c56c1c894684d6d81607a4723657ddfaaa8b2e3d32b03833f124c026fApprove143625112022-01-14 16:02:314 days 22 hrs ago0x28d711ba2ebb36d3e72295b9b88ee9ccaf9730b9 IN  APEcoin: APE Token0 BNB0.00023627
0x17289d0fd323d9b17867fe912ffda96a03493a13a17e74a72afd570064660a42Approve143615332022-01-14 15:13:364 days 23 hrs ago0x586ebe4004ea0d3efb506fe873b1029736c1ee27 IN  APEcoin: APE Token0 BNB0.00023627
0x403328485f30896a35df1ac8041074f2d3c812c98e85afd4f3130b94deca30a1Approve143531002022-01-14 8:10:095 days 6 hrs ago0xa0007edac0e284c609086801e81c9b4946059238 IN  APEcoin: APE Token0 BNB0.00023627
0xe02287c3ac65dbc9c5de6f4a05a9176a6bc6e374125ab03ce57e9f454f419a71Transfer143302352022-01-13 13:03:286 days 1 hr ago0xb47b3c7d0482e2299b40cd8caaa2d6caac0e0d7f IN  APEcoin: APE Token0 BNB0.000195685
0x77911e386f5e2f600dc0174f920714e8a92746b0d61d00e60d47c703aa0db868Approve143219242022-01-13 6:07:546 days 8 hrs ago0x6de1fd98224502b4fad0b7fca56231185cf6caf8 IN  APEcoin: APE Token0 BNB0.000283524
0x5382fc22c8d73f44a33b835a44953047bd33e6afec8f77e08614760efaea2d3aApprove143073632022-01-12 17:59:476 days 20 hrs ago0x5b270a786793af86dbbccff9691bd831e8707fa9 IN  APEcoin: APE Token0 BNB0.000283524
0x0d08a6062845fab693a660c39b15ce5a4b1bb006e59b622905f87e0e8b762c80Approve142980832022-01-12 10:14:007 days 4 hrs ago0x405669a83210f53ebf8aba8cdfd063a3b3c160c8 IN  APEcoin: APE Token0 BNB0.00023627
0xced7f47bb53c78295b4c41bed88cb1be82d912e2d65db40740a76ef7ff3333bbApprove142777252022-01-11 17:14:057 days 21 hrs ago0xeaa5edd01e49beaad85307dcdc90aafdd66a3897 IN  APEcoin: APE Token0 BNB0.00023627
0x94cf4524f87f4462a13ce5d7df35078da28766a8f7d2eee2dd9245f9c95bd946Approve142766182022-01-11 16:18:447 days 22 hrs ago0x4a70a5b4a24d539f22e1a9b58fd8e82caf76cd01 IN  APEcoin: APE Token0 BNB0.00023627
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APEcoin embraces the humor and viral nature of memes by developing an ecosystem of platforms that celebrate and explore crypto trends.

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0x82f8de4fd2274637f0d5a766d0e56ce30c16ab8a9b1df97de253693eb7ca48a554688312021-03-07 9:54:30318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x82f8de4fd2274637f0d5a766d0e56ce30c16ab8a9b1df97de253693eb7ca48a554688312021-03-07 9:54:30318 days 4 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0x82f8de4fd2274637f0d5a766d0e56ce30c16ab8a9b1df97de253693eb7ca48a554688312021-03-07 9:54:30318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x82f8de4fd2274637f0d5a766d0e56ce30c16ab8a9b1df97de253693eb7ca48a554688312021-03-07 9:54:30318 days 4 hrs ago PancakeSwap: Router APEcoin: APE Token0 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago PancakeSwap: Router APEcoin: APE Token0 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0xf67a5443b0d84d3182e8873a61d8303584855f24fd65985a5db3256713837a5a54688162021-03-07 9:53:45318 days 4 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0x68dcf14fae6d20c2b37bb1080278e8e18e81232a94af84ece8d2597ae223b35a54687252021-03-07 9:49:12318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
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0x68dcf14fae6d20c2b37bb1080278e8e18e81232a94af84ece8d2597ae223b35a54687252021-03-07 9:49:12318 days 4 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x68dcf14fae6d20c2b37bb1080278e8e18e81232a94af84ece8d2597ae223b35a54687252021-03-07 9:49:12318 days 4 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0x20f66d29109f4260d27322431f9fe49097c842d88e1eab9da2ab7f0b2e17b5cf54675692021-03-07 8:51:24318 days 5 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x20f66d29109f4260d27322431f9fe49097c842d88e1eab9da2ab7f0b2e17b5cf54675692021-03-07 8:51:24318 days 5 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0x20f66d29109f4260d27322431f9fe49097c842d88e1eab9da2ab7f0b2e17b5cf54675692021-03-07 8:51:24318 days 5 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x20f66d29109f4260d27322431f9fe49097c842d88e1eab9da2ab7f0b2e17b5cf54675692021-03-07 8:51:24318 days 5 hrs ago PancakeSwap: Router APEcoin: APE Token0 BNB
0x9347684cbb2a49b696d1cd468b769260684896f36547cfe43f068c2a160e236454674302021-03-07 8:44:27318 days 5 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x9347684cbb2a49b696d1cd468b769260684896f36547cfe43f068c2a160e236454674302021-03-07 8:44:27318 days 5 hrs ago PancakeSwap: APE 8 APEcoin: APE Token0 BNB
0x9347684cbb2a49b696d1cd468b769260684896f36547cfe43f068c2a160e236454674302021-03-07 8:44:27318 days 5 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
0x9347684cbb2a49b696d1cd468b769260684896f36547cfe43f068c2a160e236454674302021-03-07 8:44:27318 days 5 hrs ago PancakeSwap: Router APEcoin: APE Token0 BNB
0xd2c9f8f01775415dd1599c906b731bc80a14818829086c847b7c5a3b04ad717554674192021-03-07 8:43:54318 days 5 hrs ago APEcoin: APE Token 0x00f16b80dd4831c8c4f2abb3bdd73a23f56915300 BNB
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x3efa8e9a406e4255a22619341ea7fa65f2465929

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.5.17+commit.d19bba13

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at BscScan.com on 2021-02-23
*/

//OpenZeppelin_UpgradableProxy.sol

pragma solidity ^0.5.0;


//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/utils/Address.sol
/**
 * Utility library of inline functions on addresses
 *
 * Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/utils/Address.sol
 * This contract is copied here and renamed from the original to avoid clashes in the compiled artifacts
 * when the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the
 * build/artifacts folder) as well as the vanilla Address implementation from an openzeppelin version.
 */
library OpenZeppelinUpgradesAddress {
    /**
     * Returns whether the target address is a contract
     * @dev This function will return false if invoked during the constructor of a contract,
     * as the code is not actually created until after the constructor finishes.
     * @param account address of the account to check
     * @return whether the target address is a contract
     */
    function isContract(address account) internal view returns (bool) {
        uint256 size;
        // XXX Currently there is no better way to check if there is a contract in an address
        // than to check the size of the code at that address.
        // See https://ethereum.stackexchange.com/a/14016/36603
        // for more details about how this works.
        // TODO Check this again before the Serenity release, because all addresses will be
        // contracts then.
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }
}








//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/ownership/Ownable.sol
/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control
 * functions, this simplifies the implementation of "user permissions".
 *
 * Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/ownership/Ownable.sol
 * This contract is copied here and renamed from the original to avoid clashes in the compiled artifacts
 * when the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the
 * build/artifacts folder) as well as the vanilla Ownable implementation from an openzeppelin version.
 */
contract OpenZeppelinUpgradesOwnable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev The Ownable constructor sets the original `owner` of the contract to the sender
     * account.
     */
    constructor () internal {
        _owner = msg.sender;
        emit OwnershipTransferred(address(0), _owner);
    }

    /**
     * @return the address of the owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner());
        _;
    }

    /**
     * @return true if `msg.sender` is the owner of the contract.
     */
    function isOwner() public view returns (bool) {
        return msg.sender == _owner;
    }

    /**
     * @dev Allows the current owner to relinquish control of the contract.
     * @notice Renouncing to ownership will leave the contract without an owner.
     * It will not be possible to call the functions with the `onlyOwner`
     * modifier anymore.
     */
    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Allows the current owner to transfer control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0));
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}









//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/upgradeability/Proxy.sol
/**
 * @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.
 */
contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
  function () payable external {
    _fallback();
  }

  /**
   * @return The Address of the implementation.
   */
  function _implementation() internal 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 {
  }

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





//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/upgradeability/BaseUpgradeabilityProxy.sol
/**
 * @title BaseUpgradeabilityProxy
 * @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 BaseUpgradeabilityProxy is Proxy {
  /**
   * @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 Address of the current implementation
   */
  function _implementation() internal 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(OpenZeppelinUpgradesAddress.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

    bytes32 slot = IMPLEMENTATION_SLOT;

    assembly {
      sstore(slot, newImplementation)
    }
  }
}





//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/upgradeability/UpgradeabilityProxy.sol
/**
 * @title UpgradeabilityProxy
 * @dev Extends BaseUpgradeabilityProxy with a constructor for initializing
 * implementation and init data.
 */
contract UpgradeabilityProxy is BaseUpgradeabilityProxy {
  /**
   * @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);
    }
  }  
}








//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/upgradeability/BaseAdminUpgradeabilityProxy.sol
/**
 * @title BaseAdminUpgradeabilityProxy
 * @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 BaseAdminUpgradeabilityProxy is BaseUpgradeabilityProxy {
  /**
   * @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 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 {
    require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
    super._willFallback();
  }
}





//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/upgradeability/AdminUpgradeabilityProxy.sol
/**
 * @title AdminUpgradeabilityProxy
 * @dev Extends from BaseAdminUpgradeabilityProxy with a constructor for 
 * initializing the implementation, admin, and init data.
 */
contract AdminUpgradeabilityProxy is BaseAdminUpgradeabilityProxy, 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);
  }
}




//https://github.com/OpenZeppelin/openzeppelin-sdk/blob/master/packages/lib/contracts/upgradeability/ProxyAdmin.sol

/**
 * @title ProxyAdmin
 * @dev This contract is the admin of a proxy, and is in charge
 * of upgrading it as well as transferring it to another admin.
 */
contract ProxyAdmin is OpenZeppelinUpgradesOwnable {
  
  /**
   * @dev Returns the current implementation of a proxy.
   * This is needed because only the proxy admin can query it.
   * @return The address of the current implementation of the proxy.
   */
  function getProxyImplementation(AdminUpgradeabilityProxy proxy) public view returns (address) {
    // We need to manually run the static call since the getter cannot be flagged as view
    // bytes4(keccak256("implementation()")) == 0x5c60da1b
    (bool success, bytes memory returndata) = address(proxy).staticcall(hex"5c60da1b");
    require(success);
    return abi.decode(returndata, (address));
  }

  /**
   * @dev Returns the admin of a proxy. Only the admin can query it.
   * @return The address of the current admin of the proxy.
   */
  function getProxyAdmin(AdminUpgradeabilityProxy proxy) public view returns (address) {
    // We need to manually run the static call since the getter cannot be flagged as view
    // bytes4(keccak256("admin()")) == 0xf851a440
    (bool success, bytes memory returndata) = address(proxy).staticcall(hex"f851a440");
    require(success);
    return abi.decode(returndata, (address));
  }

  /**
   * @dev Changes the admin of a proxy.
   * @param proxy Proxy to change admin.
   * @param newAdmin Address to transfer proxy administration to.
   */
  function changeProxyAdmin(AdminUpgradeabilityProxy proxy, address newAdmin) public onlyOwner {
    proxy.changeAdmin(newAdmin);
  }

  /**
   * @dev Upgrades a proxy to the newest implementation of a contract.
   * @param proxy Proxy to be upgraded.
   * @param implementation the address of the Implementation.
   */
  function upgrade(AdminUpgradeabilityProxy proxy, address implementation) public onlyOwner {
    proxy.upgradeTo(implementation);
  }

  /**
   * @dev Upgrades a proxy to the newest implementation of a contract and forwards a function call to it.
   * This is useful to initialize the proxied contract.
   * @param proxy Proxy to be upgraded.
   * @param implementation Address of the 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 upgradeAndCall(AdminUpgradeabilityProxy proxy, address implementation, bytes memory data) payable public onlyOwner {
    proxy.upgradeToAndCall.value(msg.value)(implementation, data);
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"_admin","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"payable":true,"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"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":false,"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"}]

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Swarm Source

bzzr://69b8716bf80b84f072c4d174256675e6795b7ae2a64d284fb1af75f026b5b22b
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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