Contract 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 2

 
Txn Hash Method
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0xe17912e8ea7f69b0d54e82ce465b5f88a45b9f517a0743de9aaac1b69700bbf5Upgrade209751002022-08-22 15:18:5497 days 3 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000053640803 ETH
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0xba687414012183bc6ce1af6381bec5fe86cfd158f15c8555c3758d8cb2baff7bUpgrade172696042022-07-08 18:04:32142 days 18 mins ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000167983952 ETH
0x841ebcb9f347c31033569db8ce7f7caa951efb5ecc2e54fadd95efe5f3f4ad2eUpgrade170812002022-07-05 21:56:07144 days 20 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000121179387 ETH
0x9b3b2f9d2850fcb1b5e73c79bf7e6d966617d46f5d0fe1d1c41ea75991f0aa78Upgrade170800682022-07-05 21:32:27144 days 20 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000121507868 ETH
0xcc46b5ec5b319d811f5419d396ac70a7da591933062fef5ae011f41b16174171Upgrade113704562022-05-07 0:07:20204 days 18 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000220252123 ETH
0xfa4cef36e9d385c48895dc1a809852fc14618b278f89c5b6f978d1e8f5d24392Upgrade113704192022-05-07 0:07:20204 days 18 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.00022025083 ETH
0x5a5f279711c0a110a5b47c95bbdfe2125193b5d8eb98ba4fe79665afc7b99441Upgrade113696412022-05-06 23:48:39204 days 18 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000219641581 ETH
0x44e9ea8a3387fc8bf2323eb7aac13d510819f61c7a9e6867279f58f93f08a942Upgrade104123112022-04-23 17:14:34218 days 1 hr ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000230705746 ETH
0x02a25bf6803304ba0957bf5161cb7fc0eb8e5a6a09b028411a08376400200d7bUpgrade102858472022-04-21 21:38:16219 days 20 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000313126144 ETH
0xc759a86c33cd58d359f8cd9d0f49396ab745a2637df61eefd1de4f579e61cfa9Upgrade102855452022-04-21 21:32:00219 days 20 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000312277158 ETH
0x24a60e70138944232698bee58f6da4f8317bdd810535e0de7d5311989f3277fbUpgrade97596792022-04-13 21:01:24227 days 21 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000238105254 ETH
0x0c7b42a14c6164de5eaa998b4276be67514af5a61d276e40894641c2b636b683Upgrade97595792022-04-13 20:56:57227 days 21 hrs ago0xb013abd83f0bd173e9f14ce7d6e420ad711483b4 IN  0x82cd167334b4cc8e10c6d58845e93e4bac94369b0 ETH0.000238104788 ETH
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0xe02dedcf17aa237dab7b170c9e9d5c5fa5f7ca297d019f3edaa95686f50206eb322521872022-10-24 16:47:1834 days 1 hr ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0x1bb7fbda942eb19be66b5dcb32fc5a69c2ba053d0 ETH
0xd6c0a6f1cc0fb79ee14eeb8945315c620969d6a94c545d4e3144adf1692eb1e8297688442022-10-12 20:22:2545 days 22 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xb9c9ed651eb173ca7fbc3a094da9ce33ec145a290 ETH
0x940ca98aa070e946930888205e0a85a7a06cddbaefb24e38d2135edb25c4fe92297636012022-10-12 19:17:3145 days 23 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xb9c9ed651eb173ca7fbc3a094da9ce33ec145a290 ETH
0x81da85dacb09a80d14e9b75b3fe02fef0cccaad052a26ada7aa1c74f640699fa289282972022-10-07 16:24:5351 days 1 hr ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xda3cad5e4f40062ceca6c1b979766bc0baed8e330 ETH
0xdc6cddc06cd799679c7d41aadcb32317a755ba1397d97f50eb86a97c2509f44d272915522022-09-28 21:43:3659 days 20 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xf3d00a2559d84de7ac093443bcaada5f4ee4165c0 ETH
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0xa8ed34d23772bd34c193bef251b61f69d3baf2431d736c5d041491f6f0440cc0266786272022-09-25 23:55:4162 days 18 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0x99193ee9229b833d2aa4dbbda697c6600b9442860 ETH
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0xa0d7c5432884dddb22b1ccabf9bfec365834d9c49798bb001364c954ce46c9e5257443292022-09-21 17:51:3067 days 31 mins ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xc5295c6a183f29b7c962df076819d44e0076860e0 ETH
0xa54d80c6498eccd34317b33e0c32e0e7e8c680b3afa09486c38e3c87d71ceeba225493302022-09-02 20:39:0685 days 21 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xf3d00a2559d84de7ac093443bcaada5f4ee4165c0 ETH
0x54635c45d4563fd59552c033ffc3a9e3a687760dcc64104b9b74f73a26f24f93209772132022-08-22 15:45:4597 days 2 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xa0a89db1c899c49f98e6326b764bafcf167fc2ce0 ETH
0xe17912e8ea7f69b0d54e82ce465b5f88a45b9f517a0743de9aaac1b69700bbf5209751002022-08-22 15:18:5497 days 3 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xf9e197aa9fa7c3b27a1a1313cad5851b55f2fd710 ETH
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0xba687414012183bc6ce1af6381bec5fe86cfd158f15c8555c3758d8cb2baff7b172696042022-07-08 18:04:32142 days 18 mins ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xa0a89db1c899c49f98e6326b764bafcf167fc2ce0 ETH
0x841ebcb9f347c31033569db8ce7f7caa951efb5ecc2e54fadd95efe5f3f4ad2e170812002022-07-05 21:56:07144 days 20 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xb9c9ed651eb173ca7fbc3a094da9ce33ec145a290 ETH
0x9b3b2f9d2850fcb1b5e73c79bf7e6d966617d46f5d0fe1d1c41ea75991f0aa78170800682022-07-05 21:32:27144 days 20 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xda3cad5e4f40062ceca6c1b979766bc0baed8e330 ETH
0xcc46b5ec5b319d811f5419d396ac70a7da591933062fef5ae011f41b16174171113704562022-05-07 0:07:20204 days 18 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xb9c9ed651eb173ca7fbc3a094da9ce33ec145a290 ETH
0xfa4cef36e9d385c48895dc1a809852fc14618b278f89c5b6f978d1e8f5d24392113704192022-05-07 0:07:20204 days 18 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xda3cad5e4f40062ceca6c1b979766bc0baed8e330 ETH
0x5a5f279711c0a110a5b47c95bbdfe2125193b5d8eb98ba4fe79665afc7b99441113696412022-05-06 23:48:39204 days 18 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0x9b58fc8c7b224ae8479da7e6ed37ca4ac58099a90 ETH
0x44e9ea8a3387fc8bf2323eb7aac13d510819f61c7a9e6867279f58f93f08a942104123112022-04-23 17:14:34218 days 1 hr ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xc2e007c61319fcf028178fab14cd6ed6660c6e860 ETH
0x02a25bf6803304ba0957bf5161cb7fc0eb8e5a6a09b028411a08376400200d7b102858472022-04-21 21:38:16219 days 20 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xc2e007c61319fcf028178fab14cd6ed6660c6e860 ETH
0xc759a86c33cd58d359f8cd9d0f49396ab745a2637df61eefd1de4f579e61cfa9102855452022-04-21 21:32:00219 days 20 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xc2e007c61319fcf028178fab14cd6ed6660c6e860 ETH
0x24a60e70138944232698bee58f6da4f8317bdd810535e0de7d5311989f3277fb97596792022-04-13 21:01:24227 days 21 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xb9c9ed651eb173ca7fbc3a094da9ce33ec145a290 ETH
0x0c7b42a14c6164de5eaa998b4276be67514af5a61d276e40894641c2b636b68397595792022-04-13 20:56:57227 days 21 hrs ago 0x82cd167334b4cc8e10c6d58845e93e4bac94369b 0xb9c9ed651eb173ca7fbc3a094da9ce33ec145a290 ETH
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x0ff5a8451a839f5f0bb3562689d9a44089738d11

Contract Name:
ProxyAdmin

Compiler Version
v0.8.2+commit.661d1103

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Arbiscan on 2021-10-07
*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
  /**
   * @dev Delegates the current call to `implementation`.
   *
   * This function does not return to its internall call site, it will return directly to the external caller.
   */
  function _delegate(address implementation) internal virtual {
    // solhint-disable-next-line no-inline-assembly
    assembly {
      // Copy msg.data. We take full control of memory in this inline assembly
      // block because it will not return to Solidity code. We overwrite the
      // Solidity scratch pad at memory position 0.
      calldatacopy(0, 0, calldatasize())

      // Call the implementation.
      // out and outsize are 0 because we don't know the size yet.
      let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

      // Copy the returned data.
      returndatacopy(0, 0, returndatasize())

      switch result
      // delegatecall returns 0 on error.
      case 0 {
        revert(0, returndatasize())
      }
      default {
        return(0, returndatasize())
      }
    }
  }

  /**
   * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
   * and {_fallback} should delegate.
   */
  function _implementation() internal view virtual returns (address);

  /**
   * @dev Delegates the current call to the address returned by `_implementation()`.
   *
   * This function does not return to its internall call site, it will return directly to the external caller.
   */
  function _fallback() internal virtual {
    _beforeFallback();
    _delegate(_implementation());
  }

  /**
   * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
   * function in the contract matches the call data.
   */
  fallback() external payable virtual {
    _fallback();
  }

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

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

// File @openzeppelin/contracts/proxy/beacon/[email protected]

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
  /**
   * @dev Must return an address that can be used as a delegate call target.
   *
   * {BeaconProxy} will check that this address is a contract.
   */
  function implementation() external view returns (address);
}

// File @openzeppelin/contracts/utils/[email protected]

/**
 * @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);
      }
    }
  }
}

// File @openzeppelin/contracts/utils/[email protected]

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
  struct AddressSlot {
    address value;
  }

  struct BooleanSlot {
    bool value;
  }

  struct Bytes32Slot {
    bytes32 value;
  }

  struct Uint256Slot {
    uint256 value;
  }

  /**
   * @dev Returns an `AddressSlot` with member `value` located at `slot`.
   */
  function getAddressSlot(bytes32 slot)
    internal
    pure
    returns (AddressSlot storage r)
  {
    assembly {
      r.slot := slot
    }
  }

  /**
   * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
   */
  function getBooleanSlot(bytes32 slot)
    internal
    pure
    returns (BooleanSlot storage r)
  {
    assembly {
      r.slot := slot
    }
  }

  /**
   * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
   */
  function getBytes32Slot(bytes32 slot)
    internal
    pure
    returns (Bytes32Slot storage r)
  {
    assembly {
      r.slot := slot
    }
  }

  /**
   * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
   */
  function getUint256Slot(bytes32 slot)
    internal
    pure
    returns (Uint256Slot storage r)
  {
    assembly {
      r.slot := slot
    }
  }
}

// File @openzeppelin/contracts/proxy/ERC1967/[email protected]

pragma solidity ^0.8.2;

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967Upgrade {
  // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
  bytes32 private constant _ROLLBACK_SLOT =
    0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

  /**
   * @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 Emitted when the implementation is upgraded.
   */
  event Upgraded(address indexed implementation);

  /**
   * @dev Returns the current implementation address.
   */
  function _getImplementation() internal view returns (address) {
    return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
  }

  /**
   * @dev Stores a new address in the EIP1967 implementation slot.
   */
  function _setImplementation(address newImplementation) private {
    require(
      Address.isContract(newImplementation),
      "ERC1967: new implementation is not a contract"
    );
    StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
  }

  /**
   * @dev Perform implementation upgrade
   *
   * Emits an {Upgraded} event.
   */
  function _upgradeTo(address newImplementation) internal {
    _setImplementation(newImplementation);
    emit Upgraded(newImplementation);
  }

  /**
   * @dev Perform implementation upgrade with additional setup call.
   *
   * Emits an {Upgraded} event.
   */
  function _upgradeToAndCall(
    address newImplementation,
    bytes memory data,
    bool forceCall
  ) internal {
    _setImplementation(newImplementation);
    emit Upgraded(newImplementation);
    if (data.length > 0 || forceCall) {
      Address.functionDelegateCall(newImplementation, data);
    }
  }

  /**
   * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
   *
   * Emits an {Upgraded} event.
   */
  function _upgradeToAndCallSecure(
    address newImplementation,
    bytes memory data,
    bool forceCall
  ) internal {
    address oldImplementation = _getImplementation();

    // Initial upgrade and setup call
    _setImplementation(newImplementation);
    if (data.length > 0 || forceCall) {
      Address.functionDelegateCall(newImplementation, data);
    }

    // Perform rollback test if not already in progress
    StorageSlot.BooleanSlot storage rollbackTesting = StorageSlot
      .getBooleanSlot(_ROLLBACK_SLOT);
    if (!rollbackTesting.value) {
      // Trigger rollback using upgradeTo from the new implementation
      rollbackTesting.value = true;
      Address.functionDelegateCall(
        newImplementation,
        abi.encodeWithSignature("upgradeTo(address)", oldImplementation)
      );
      rollbackTesting.value = false;
      // Check rollback was effective
      require(
        oldImplementation == _getImplementation(),
        "ERC1967Upgrade: upgrade breaks further upgrades"
      );
      // Finally reset to the new implementation and log the upgrade
      _setImplementation(newImplementation);
      emit Upgraded(newImplementation);
    }
  }

  /**
   * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
   * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
   *
   * Emits a {BeaconUpgraded} event.
   */
  function _upgradeBeaconToAndCall(
    address newBeacon,
    bytes memory data,
    bool forceCall
  ) internal {
    _setBeacon(newBeacon);
    emit BeaconUpgraded(newBeacon);
    if (data.length > 0 || forceCall) {
      Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
    }
  }

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

  /**
   * @dev Returns the current admin.
   */
  function _getAdmin() internal view returns (address) {
    return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
  }

  /**
   * @dev Stores a new address in the EIP1967 admin slot.
   */
  function _setAdmin(address newAdmin) private {
    require(newAdmin != address(0), "ERC1967: new admin is the zero address");
    StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
  }

  /**
   * @dev Changes the admin of the proxy.
   *
   * Emits an {AdminChanged} event.
   */
  function _changeAdmin(address newAdmin) internal {
    emit AdminChanged(_getAdmin(), newAdmin);
    _setAdmin(newAdmin);
  }

  /**
   * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
   * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
   */
  bytes32 internal constant _BEACON_SLOT =
    0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

  /**
   * @dev Emitted when the beacon is upgraded.
   */
  event BeaconUpgraded(address indexed beacon);

  /**
   * @dev Returns the current beacon.
   */
  function _getBeacon() internal view returns (address) {
    return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
  }

  /**
   * @dev Stores a new beacon in the EIP1967 beacon slot.
   */
  function _setBeacon(address newBeacon) private {
    require(
      Address.isContract(newBeacon),
      "ERC1967: new beacon is not a contract"
    );
    require(
      Address.isContract(IBeacon(newBeacon).implementation()),
      "ERC1967: beacon implementation is not a contract"
    );
    StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
  }
}

// File @openzeppelin/contracts/proxy/ERC1967/[email protected]

/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
  /**
   * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
   *
   * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
   * function call, and allows initializating the storage of the proxy like a Solidity constructor.
   */
  constructor(address _logic, bytes memory _data) payable {
    assert(
      _IMPLEMENTATION_SLOT ==
        bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)
    );
    _upgradeToAndCall(_logic, _data, false);
  }

  /**
   * @dev Returns the current implementation address.
   */
  function _implementation()
    internal
    view
    virtual
    override
    returns (address impl)
  {
    return ERC1967Upgrade._getImplementation();
  }
}

// File @openzeppelin/contracts/proxy/transparent/[email protected]

/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 *
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 *
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
 */
contract TransparentUpgradeableProxy is ERC1967Proxy {
  /**
   * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
   * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
   */
  constructor(
    address _logic,
    address admin_,
    bytes memory _data
  ) payable ERC1967Proxy(_logic, _data) {
    assert(
      _ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1)
    );
    _changeAdmin(admin_);
  }

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

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

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

  /**
   * @dev Changes the admin of the proxy.
   *
   * Emits an {AdminChanged} event.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
   */
  function changeAdmin(address newAdmin) external virtual ifAdmin {
    _changeAdmin(newAdmin);
  }

  /**
   * @dev Upgrade the implementation of the proxy.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
   */
  function upgradeTo(address newImplementation) external ifAdmin {
    _upgradeToAndCall(newImplementation, bytes(""), false);
  }

  /**
   * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
   * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
   * proxied contract.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
   */
  function upgradeToAndCall(address newImplementation, bytes calldata data)
    external
    payable
    ifAdmin
  {
    _upgradeToAndCall(newImplementation, data, true);
  }

  /**
   * @dev Returns the current admin.
   */
  function _admin() internal view virtual returns (address) {
    return _getAdmin();
  }

  /**
   * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
   */
  function _beforeFallback() internal virtual override {
    require(
      msg.sender != _getAdmin(),
      "TransparentUpgradeableProxy: admin cannot fallback to proxy target"
    );
    super._beforeFallback();
  }
}

// File @openzeppelin/contracts/utils/[email protected]

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
  function _msgSender() internal view virtual returns (address) {
    return msg.sender;
  }

  function _msgData() internal view virtual returns (bytes calldata) {
    this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
    return msg.data;
  }
}

// File @openzeppelin/contracts/access/[email protected]

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
  address private _owner;

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

  /**
   * @dev Initializes the contract setting the deployer as the initial owner.
   */
  constructor() {
    address msgSender = _msgSender();
    _owner = msgSender;
    emit OwnershipTransferred(address(0), msgSender);
  }

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

  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    require(owner() == _msgSender(), "Ownable: caller is not the owner");
    _;
  }

  /**
   * @dev Leaves the contract without owner. It will not be possible to call
   * `onlyOwner` functions anymore. Can only be called by the current owner.
   *
   * NOTE: Renouncing ownership will leave the contract without an owner,
   * thereby removing any functionality that is only available to the owner.
   */
  function renounceOwnership() public virtual onlyOwner {
    emit OwnershipTransferred(_owner, address(0));
    _owner = address(0);
  }

  /**
   * @dev Transfers ownership of the contract to a new account (`newOwner`).
   * Can only be called by the current owner.
   */
  function transferOwnership(address newOwner) public virtual onlyOwner {
    require(newOwner != address(0), "Ownable: new owner is the zero address");
    emit OwnershipTransferred(_owner, newOwner);
    _owner = newOwner;
  }
}

// File contracts/ProxyAdmin.sol

/**
 * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
 * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
 */
contract ProxyAdmin is Ownable {
  /**
   * @dev Returns the current implementation of `proxy`.
   *
   * Requirements:
   *
   * - This contract must be the admin of `proxy`.
   */
  function getProxyImplementation(TransparentUpgradeableProxy proxy)
    public
    view
    virtual
    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 current admin of `proxy`.
   *
   * Requirements:
   *
   * - This contract must be the admin of `proxy`.
   */
  function getProxyAdmin(TransparentUpgradeableProxy proxy)
    public
    view
    virtual
    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 `proxy` to `newAdmin`.
   *
   * Requirements:
   *
   * - This contract must be the current admin of `proxy`.
   */
  function changeProxyAdmin(TransparentUpgradeableProxy proxy, address newAdmin)
    public
    virtual
    onlyOwner
  {
    proxy.changeAdmin(newAdmin);
  }

  /**
   * @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}.
   *
   * Requirements:
   *
   * - This contract must be the admin of `proxy`.
   */
  function upgrade(TransparentUpgradeableProxy proxy, address implementation)
    public
    virtual
    onlyOwner
  {
    proxy.upgradeTo(implementation);
  }

  /**
   * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See
   * {TransparentUpgradeableProxy-upgradeToAndCall}.
   *
   * Requirements:
   *
   * - This contract must be the admin of `proxy`.
   */
  function upgradeAndCall(
    TransparentUpgradeableProxy proxy,
    address implementation,
    bytes memory data
  ) public payable virtual onlyOwner {
    proxy.upgradeToAndCall{ value: msg.value }(implementation, data);
  }
}

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"contract TransparentUpgradeableProxy","name":"proxy","type":"address"},{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeProxyAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract TransparentUpgradeableProxy","name":"proxy","type":"address"}],"name":"getProxyAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract TransparentUpgradeableProxy","name":"proxy","type":"address"}],"name":"getProxyImplementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract TransparentUpgradeableProxy","name":"proxy","type":"address"},{"internalType":"address","name":"implementation","type":"address"}],"name":"upgrade","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract TransparentUpgradeableProxy","name":"proxy","type":"address"},{"internalType":"address","name":"implementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeAndCall","outputs":[],"stateMutability":"payable","type":"function"}]

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Metadata Hash

d849f96f3086b9f82cdcf665adb8c697ace05638da1c7c16ab2d26293717af67
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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