Contract 0x7f5daf18a06433c87bd81ea7ea19976e64100a66 1

 

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0xc7b5168dac94319589dfb118dbe074fa1b3519fe177c12139682af65fdcba32fHarvest131556322021-12-03 9:37:5516 mins ago0x33c3c73bcbd16e2117a68958bc03fd945f5c4a9a IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0xbdb5cc6e998ce84799ecca72bd53a6e2263621638ec641cb2cd06d6d9a1c7cc2Harvest131554542021-12-03 9:29:0025 mins ago0x68520f9eb6925e2a2e6ce61a1b32a9643bc83247 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00235189
0x70f592bb92f1523a7e5ea246c952348e15b3d0e7d517212fa299aa6acd731396Harvest131553932021-12-03 9:25:5728 mins ago0x1e9456d8aeab1386f757c6a4087f7318eda148e1 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00227689
0xc21a60837bc55ffbf50ecddb14ee711404be6908278cf14cd449b88ed7b3c16aHarvest131553512021-12-03 9:23:5130 mins ago0xf746613cb84635e7e74bb7b70b11a39409405f89 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00166034
0x49045e6ca6f8960779239ac634625adf20500f9ca6a31a30df0c3aab1e800833Harvest131549002021-12-03 8:59:5254 mins ago0x2fdd0647e26130fedc9ba01e43a021ccd9480b5d IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00104381
0x30fc6c99bcb9673e27ba01831d37da2c070b0ca7bf3b23556a287d5edeae5d4dHarvest131546342021-12-03 8:46:341 hr 7 mins ago0x426f71352471800121066aa7526c7334791565a4 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.001252572
0x2b34512ad015c1d21922cc8c864d991221c3d62c0d5c8c11258a525d80cb48b3Harvest131540302021-12-03 8:15:091 hr 39 mins ago0x6cb25e4967ffb2954e0cb19c89529e907fa28462 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0x6b9562c2ceb19835565ca1b2d21c68ba6cee29447ee27a95d3234bba67f61f1cSet Approval For...131532942021-12-03 7:38:202 hrs 15 mins ago0x4ccd176f194023164b7f62c7236e5aecc8526ac9 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.000239875
0x6c4fe47230b10971626f84e491d56d1994946d0762200cbde25225d26e0823f0Harvest131532852021-12-03 7:37:532 hrs 16 mins ago0x11b0c209d5d7c525ae082738b4fbccbdc16696fa IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00173534
0x9c8ddda66863b0029ca5efb76c09a98ee7652ca02db02adf8239a7852953700bUnstake131531242021-12-03 7:29:272 hrs 24 mins ago0x4ccd176f194023164b7f62c7236e5aecc8526ac9 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.001205635
0xf22bf89666b11829df55d2624bf0605520a2ab4bca914654dd0e03c94338ea3bHarvest131528322021-12-03 7:14:462 hrs 39 mins ago0xede09705c195e20493482abcfef40a4457c99ca7 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00173534
0xbe9f0462cb2e932f2212bf30277a4dae09fbd59d4f01c973153ace408c12423cHarvest131525722021-12-03 7:01:452 hrs 52 mins ago0xec1f04418751a6b90b256ae8a3b70cb66965389d IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0x25308b11b9fbe162f995b54d6ba20743800bea214dc316b85a6fbd260b441961Harvest131524022021-12-03 6:53:073 hrs 1 min ago0x24b0bd8f3fca87b279edf8c4777554d4aabdc80b IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00104381
0xa8450abe5d6e64e45ee875ed639ac832e120e3252981e45f26664495a9528350Harvest131523102021-12-03 6:48:313 hrs 5 mins ago0x6ea8b3524a4e6b6b59642ebd88e0b28b318e64e1 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00104381
0x77fcf09d81c6433d33dd8403bd5d8bb062dc86fab53eccac89ab04c8ddd497b7Harvest131518742021-12-03 6:26:253 hrs 27 mins ago0xc73cab556cfef365f2cb227bc1e7dd9bd673e7c0 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00173534
0x5e65fa2edb3167d38d0beac68b204d6378f7478ceac8e05991252a9a1167561cHarvest131518322021-12-03 6:24:193 hrs 29 mins ago0x8ab496144c139c5d4a64d1ff17e27eca9b8acbbf IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00173534
0x17cb1ccf3c48d5979d6558b911cdf0d598d2b2d10ec71158c751fe555bd2f9aeHarvest131517832021-12-03 6:21:523 hrs 32 mins ago0xd490fb07e3502a2284afb996f944e71e5b7b244e IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.001660355
0xa295bf234438e89e583349e00d8838dc627686177fd6372039b54f4caa3af2e4Harvest131513052021-12-03 5:57:583 hrs 56 mins ago0x29f040ad5fa4915cde5cf6a61c9a5d0f1b9b25b4 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0x32a1a984cda28a88187a9a7583e43b8bec8d39928f661eaadf933dd072d26ef6Harvest131510392021-12-03 5:44:394 hrs 9 mins ago0xca1fc8cecaf310008593061f9257ce40045bd17d IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00119824551
0x862a23381bed1f0a6133e81470c78ad1013a76ca69b627b9362d33ddc2afdf8aHarvest131508852021-12-03 5:36:574 hrs 17 mins ago0x480bc123c37748ccd1b86541b0f8bd2388ece0a8 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00235189
0xe54899519dbb51b7f27db9a3978e65f3e5ac51623093342b3f4af33020c91a24Harvest131500472021-12-03 4:53:125 hrs 1 min ago0x8c6f94fef1f9d91339a047fa80348aa716663461 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00104381
0x8471f5a1178d8846019033a52c36cf4d2f69aaea3e15a1f9a51e64a2f206b721Harvest131500422021-12-03 4:52:575 hrs 1 min ago0x8c6f94fef1f9d91339a047fa80348aa716663461 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0xe58059afd7e970c9f6bd534c1971e2bb13ac940b32b12ff6281a0f8a047c8472Harvest131498672021-12-03 4:44:125 hrs 10 mins ago0xa7758b30e93d2ed6cea7c85e5b12a1d46f0f091f IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0x6bdf2a7458d9ba76a54e4f788b9663063bad22e541bcebeae03246edbaf36720Harvest131497562021-12-03 4:38:395 hrs 15 mins ago0x4ccd176f194023164b7f62c7236e5aecc8526ac9 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00111881
0xa5455596dc3a570c841dee8257ce11b9c64670a5cd0b66b5a44d69ac57837828Harvest131490582021-12-03 4:03:455 hrs 50 mins ago0xfccf399c9b4d5988a921ffd2eda9a21af31a2dc3 IN  0x7f5daf18a06433c87bd81ea7ea19976e64100a660 BNB0.00166034
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Contract Source Code Verified (Exact Match)

Contract Name:
TransparentUpgradeableProxy

Compiler Version
v0.8.2+commit.661d1103

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity Multiple files format)

File 1 of 7: TransparentUpgradeableProxy.sol
// SPDX-License-Identifier: MIT
//        .-.                               .-.
//       / (_)         /      /       .--.-'
//      /      .-. ---/------/---.-. (  (_)`)    (  .-.   .-.
//     /      (  |   /      /  ./.-'_ `-.  /  .   )(  |   /  )
//  .-/.    .-.`-'-'/      /   (__.'_    )(_.' `-'  `-'-'/`-'
// (_/ `-._.                       (_.--'               /

pragma solidity ^0.8.0;

import "./ERC1967Proxy.sol";

/**
 * @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 2 of 7: Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

File 3 of 7: ERC1967Proxy.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./Proxy.sol";
import "./ERC1967Upgrade.sol";

/**
 * @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 4 of 7: ERC1967Upgrade.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.2;

import "./IBeacon.sol";
import "./Address.sol";
import "./StorageSlot.sol";

/**
 * @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 5 of 7: IBeacon.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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 6 of 7: Proxy.sol
// 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 7 of 7: StorageSlot.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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
    }
  }
}

Contract Security Audit

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":"beacon","type":"address"}],"name":"BeaconUpgraded","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":"admin_","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":"implementation_","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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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _logic (address): 0x256dc549e6aa81bdea0ef071917651e2260454ed
Arg [1] : admin_ (address): 0x02af4337792a44afb4005d57c36f9c3bea6209bb
Arg [2] : _data (bytes): 0x463fd1af00000000000000000000000000000000000000000000000000000000000000600000000000000000000000008d78c2ff1fb4fba08c7691dfeac7bb425a91c81a000000000000000000000000bcee0d15a4402c9cc894d52cc5e9982f60c463d60000000000000000000000000000000000000000000000000000000000000036697066733a2f2f516d646d704e434e35484762397443695538416d453665695659514b67714d4a315365443438387a5079584c56752f00000000000000000000

-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 000000000000000000000000256dc549e6aa81bdea0ef071917651e2260454ed
Arg [1] : 00000000000000000000000002af4337792a44afb4005d57c36f9c3bea6209bb
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c4
Arg [4] : 463fd1af00000000000000000000000000000000000000000000000000000000
Arg [5] : 000000600000000000000000000000008d78c2ff1fb4fba08c7691dfeac7bb42
Arg [6] : 5a91c81a000000000000000000000000bcee0d15a4402c9cc894d52cc5e9982f
Arg [7] : 60c463d600000000000000000000000000000000000000000000000000000000
Arg [8] : 00000036697066733a2f2f516d646d704e434e35484762397443695538416d45
Arg [9] : 3665695659514b67714d4a315365443438387a5079584c56752f000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000000


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Swarm Source

ipfs://93f028255035b61df476b13b9dba3c4f06f60e51b9b4caee31680b389aef327f
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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