Contract 0x969d515486ba6133400ac9c73298586426a090f5 3

Txn Hash Method
Block
From
To
Value [Txn Fee]
0x629b25a99678051b3343b2dc92835eb4d730c2042a7507ede0ae966e232012760x60a060401713692022-01-11 11:08:48264 days 17 hrs ago0xa5bd5c661f373256c0ccfbc628fd52de74f9bb55 IN  Contract Creation0 GLMR0.0288924
[ Download CSV Export 
Parent Txn Hash Block From To Value
Loading

Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xFe8874778f946Ac2990A29eba3CFd50760593B2F

Contract Name:
UpgradeBeacon

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 999999 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 2 : UpgradeBeacon.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.11;

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

/**
 * @title UpgradeBeacon
 * @notice Stores the address of an implementation contract
 * and allows a controller to upgrade the implementation address
 * @dev This implementation combines the gas savings of having no function selectors
 * found in 0age's implementation:
 * https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/proxies/smart-wallet/UpgradeBeaconProxyV1.sol
 * With the added niceties of a safety check that each implementation is a contract
 * and an Upgrade event emitted each time the implementation is changed
 * found in OpenZeppelin's implementation:
 * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/beacon/BeaconProxy.sol
 */
contract UpgradeBeacon {
    // ============ Immutables ============

    // The controller is capable of modifying the implementation address
    address private immutable controller;

    // ============ Private Storage Variables ============

    // The implementation address is held in storage slot zero.
    address private implementation;

    // ============ Events ============

    // Upgrade event is emitted each time the implementation address is set
    // (including deployment)
    event Upgrade(address indexed implementation);

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

    /**
     * @notice Validate the initial implementation and store it.
     * Store the controller immutably.
     * @param _initialImplementation Address of the initial implementation contract
     * @param _controller Address of the controller who can upgrade the implementation
     */
    constructor(address _initialImplementation, address _controller) payable {
        _setImplementation(_initialImplementation);
        controller = _controller;
    }

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

    /**
     * @notice For all callers except the controller, return the current implementation address.
     * If called by the Controller, update the implementation address
     * to the address passed in the calldata.
     * Note: this requires inline assembly because Solidity fallback functions
     * do not natively take arguments or return values.
     */
    fallback() external payable {
        if (msg.sender != controller) {
            // if not called by the controller,
            // load implementation address from storage slot zero
            // and return it.
            assembly {
                mstore(0, sload(0))
                return(0, 32)
            }
        } else {
            // if called by the controller,
            // load new implementation address from the first word of the calldata
            address _newImplementation;
            assembly {
                _newImplementation := calldataload(0)
            }
            // set the new implementation
            _setImplementation(_newImplementation);
        }
    }

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

    /**
     * @notice Perform checks on the new implementation address
     * then upgrade the stored implementation.
     * @param _newImplementation Address of the new implementation contract which will replace the old one
     */
    function _setImplementation(address _newImplementation) private {
        // Require that the new implementation is different from the current one
        require(implementation != _newImplementation, "!upgrade");
        // Require that the new implementation is a contract
        require(
            Address.isContract(_newImplementation),
            "implementation !contract"
        );
        // set the new implementation
        implementation = _newImplementation;
        emit Upgrade(_newImplementation);
    }
}

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 ABI

[{"inputs":[{"internalType":"address","name":"_initialImplementation","type":"address"},{"internalType":"address","name":"_controller","type":"address"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgrade","type":"event"},{"stateMutability":"payable","type":"fallback"}]

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

Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.