GLMR Price: $0.48 (-4.28%)
Gas: 135 GWei

Contract

0xa7E4Fea3c1468D6C1A3A77e21e6e43Daed855C1b

Overview

GLMR Balance

Moonbeam Chain LogoMoonbeam Chain LogoMoonbeam Chain Logo0 GLMR

GLMR Value

$0.00

Multichain Info

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Transaction Hash
Method
Block
From
To
Value
Transfer Ownersh...1713992022-01-11 11:14:48783 days ago1641899688IN
Nomad: Deployer
0 GLMR0.00440025150
0x60a060401713752022-01-11 11:10:00783 days ago1641899400IN
 Create: UpgradeBeaconProxy
0 GLMR0.0410448150

Latest 15 internal transactions

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15550792022-07-31 16:36:36582 days ago1659285396
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9299352022-04-30 16:26:42674 days ago1651336002
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9298752022-04-30 16:14:24674 days ago1651335264
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9277402022-04-30 8:43:12674 days ago1651308192
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9210872022-04-29 9:33:12675 days ago1651224792
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8339772022-04-16 20:21:30688 days ago1650140490
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6034182022-03-14 18:47:36721 days ago1647283656
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5239002022-03-03 10:09:24732 days ago1646302164
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1910202022-01-14 6:30:00780 days ago1642141800
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1910122022-01-14 6:28:24780 days ago1642141704
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1720072022-01-11 13:18:18783 days ago1641907098
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1719942022-01-11 13:15:42783 days ago1641906942
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1719822022-01-11 13:13:18783 days ago1641906798
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1719722022-01-11 13:11:12783 days ago1641906672
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1719622022-01-11 13:09:06783 days ago1641906546
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Contract Source Code Verified (Exact Match)

Contract Name:
UpgradeBeaconProxy

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 999999 runs

Other Settings:
default evmVersion
File 1 of 2 : UpgradeBeaconProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.11;

// ============ External Imports ============
import {Address} from "@openzeppelin/contracts/utils/Address.sol";

/**
 * @title UpgradeBeaconProxy
 * @notice
 * Proxy contract which delegates all logic, including initialization,
 * to an implementation contract.
 * The implementation contract is stored within an Upgrade Beacon contract;
 * the implementation contract can be changed by performing an upgrade on the Upgrade Beacon contract.
 * The Upgrade Beacon contract for this Proxy is immutably specified at deployment.
 * @dev This implementation combines the gas savings of keeping the UpgradeBeacon address outside of contract storage
 * found in 0age's implementation:
 * https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/proxies/smart-wallet/UpgradeBeaconProxyV1.sol
 * With the added safety checks that the UpgradeBeacon and implementation are contracts at time of deployment
 * found in OpenZeppelin's implementation:
 * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/beacon/BeaconProxy.sol
 */
contract UpgradeBeaconProxy {
    // ============ Immutables ============

    // Upgrade Beacon address is immutable (therefore not kept in contract storage)
    address private immutable upgradeBeacon;

    // ============ Constructor ============

    /**
     * @notice Validate that the Upgrade Beacon is a contract, then set its
     * address immutably within this contract.
     * Validate that the implementation is also a contract,
     * Then call the initialization function defined at the implementation.
     * The deployment will revert and pass along the
     * revert reason if the initialization function reverts.
     * @param _upgradeBeacon Address of the Upgrade Beacon to be stored immutably in the contract
     * @param _initializationCalldata Calldata supplied when calling the initialization function
     */
    constructor(address _upgradeBeacon, bytes memory _initializationCalldata)
        payable
    {
        // Validate the Upgrade Beacon is a contract
        require(Address.isContract(_upgradeBeacon), "beacon !contract");
        // set the Upgrade Beacon
        upgradeBeacon = _upgradeBeacon;
        // Validate the implementation is a contract
        address _implementation = _getImplementation(_upgradeBeacon);
        require(
            Address.isContract(_implementation),
            "beacon implementation !contract"
        );
        // Call the initialization function on the implementation
        if (_initializationCalldata.length > 0) {
            _initialize(_implementation, _initializationCalldata);
        }
    }

    // ============ External Functions ============

    /**
     * @notice Forwards all calls with data to _fallback()
     * No public functions are declared on the contract, so all calls hit fallback
     */
    fallback() external payable {
        _fallback();
    }

    /**
     * @notice Forwards all calls with no data to _fallback()
     */
    receive() external payable {
        _fallback();
    }

    // ============ Private Functions ============

    /**
     * @notice Call the initialization function on the implementation
     * Used at deployment to initialize the proxy
     * based on the logic for initialization defined at the implementation
     * @param _implementation - Contract to which the initalization is delegated
     * @param _initializationCalldata - Calldata supplied when calling the initialization function
     */
    function _initialize(
        address _implementation,
        bytes memory _initializationCalldata
    ) private {
        // Delegatecall into the implementation, supplying initialization calldata.
        (bool _ok, ) = _implementation.delegatecall(_initializationCalldata);
        // Revert and include revert data if delegatecall to implementation reverts.
        if (!_ok) {
            assembly {
                returndatacopy(0, 0, returndatasize())
                revert(0, returndatasize())
            }
        }
    }

    /**
     * @notice Delegates function calls to the implementation contract returned by the Upgrade Beacon
     */
    function _fallback() private {
        _delegate(_getImplementation());
    }

    /**
     * @notice Delegate function execution to the implementation contract
     * @dev This is a low level function that doesn't return to its internal
     * call site. It will return whatever is returned by the implementation to the
     * external caller, reverting and returning the revert data if implementation
     * reverts.
     * @param _implementation - Address to which the function execution is delegated
     */
    function _delegate(address _implementation) private {
        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())
            // Delegatecall to the implementation, supplying calldata and gas.
            // Out and outsize are set to zero - instead, use the return buffer.
            let result := delegatecall(
                gas(),
                _implementation,
                0,
                calldatasize(),
                0,
                0
            )
            // Copy the returned data from the return buffer.
            returndatacopy(0, 0, returndatasize())
            switch result
            // Delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @notice Call the Upgrade Beacon to get the current implementation contract address
     * @return _implementation Address of the current implementation.
     */
    function _getImplementation()
        private
        view
        returns (address _implementation)
    {
        _implementation = _getImplementation(upgradeBeacon);
    }

    /**
     * @notice Call the Upgrade Beacon to get the current implementation contract address
     * @dev _upgradeBeacon is passed as a parameter so that
     * we can also use this function in the constructor,
     * where we can't access immutable variables.
     * @param _upgradeBeacon Address of the UpgradeBeacon storing the current implementation
     * @return _implementation Address of the current implementation.
     */
    function _getImplementation(address _upgradeBeacon)
        private
        view
        returns (address _implementation)
    {
        // Get the current implementation address from the upgrade beacon.
        (bool _ok, bytes memory _returnData) = _upgradeBeacon.staticcall("");
        // Revert and pass along revert message if call to upgrade beacon reverts.
        require(_ok, string(_returnData));
        // Set the implementation to the address returned from the upgrade beacon.
        _implementation = abi.decode(_returnData, (address));
    }
}

File 2 of 2 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @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);
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_upgradeBeacon","type":"address"},{"internalType":"bytes","name":"_initializationCalldata","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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

Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000009f7ea856ba1fb88d35e000c45e75f134a756ac4f00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000044485cc955000000000000000000000000969d515486ba6133400ac9c73298586426a090f5000000000000000000000000db378579c2af11817eea21474a39f95b5b9dfd7e00000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _upgradeBeacon (address): 0x9f7eA856bA1fB88d35e000c45E75F134A756Ac4F
Arg [1] : _initializationCalldata (bytes): 0x485cc955000000000000000000000000969d515486ba6133400ac9c73298586426a090f5000000000000000000000000db378579c2af11817eea21474a39f95b5b9dfd7e

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000009f7ea856ba1fb88d35e000c45e75f134a756ac4f
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000044
Arg [3] : 485cc955000000000000000000000000969d515486ba6133400ac9c732985864
Arg [4] : 26a090f5000000000000000000000000db378579c2af11817eea21474a39f95b
Arg [5] : 5b9dfd7e00000000000000000000000000000000000000000000000000000000


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OVERVIEW

Deployer address for Nomad.

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