Contract 0xe57ebd2d67b462e9926e04a8e33f01cd0d64346d 1

Contract Overview

Wormhole: WBTC Token
Balance:
0 GLMR

GLMR Value:
$0.00
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xa81e26a698897b0e0febc3a0b054cec703eb2d5da6309a9497bd55c735482b65Approve32298542023-03-27 17:52:002 hrs 57 mins ago0xf3521de8b160bf2efb71840638c146ba6d4dc495 IN  Wormhole: WBTC Token0 GLMR0.006213015
0x03a8919f4b602a7ca43e84b3e385ced6c90648719ad78e1871befeea5177198aApprove32296862023-03-27 17:17:003 hrs 32 mins ago0xe7f44cd8132633c2a7e6920de8c3b7f6e9a78ce3 IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x613e2bb322fc364186a2c91c6937c0e1746aa1e4fee8fe9ba9d1e621587dd82eApprove32292912023-03-27 15:55:064 hrs 53 mins ago0x65a77abee96a28c7993d266562e3d4f657e7e6ec IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x188feca59504f1ed3027e7ec0ab53d21ee08c4bb07a1eebcee5ee0c63a569468Approve32292792023-03-27 15:52:424 hrs 56 mins ago0x8eb56a6ee55352a752dfb21f440d1c8669072ec8 IN  Wormhole: WBTC Token0 GLMR0.0062449905
0xfa8bb79822e4ac4a2fc89093498d94f8cc0e79c6d14970a0aeb4c84473a60d6fApprove32292672023-03-27 15:50:124 hrs 58 mins ago0x8eb56a6ee55352a752dfb21f440d1c8669072ec8 IN  Wormhole: WBTC Token0 GLMR0.0062449905
0x0b3e9acf92d7b9f4c4e869313b1205c5d701d44942ac158526ab4585ed673023Approve32286012023-03-27 13:30:547 hrs 18 mins ago0xddb20a475aeead0cea068f98cf83b2465d83071f IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x2bbdc36be339e71ad0d4f69e092bc50fdaf7156d708a403f116ba56aedae4131Approve32279062023-03-27 11:07:369 hrs 41 mins ago0xfdf020873c7635f5334deced0c8fde7bf2f37439 IN  Wormhole: WBTC Token0 GLMR0.00627453
0x06e78e1d16715a4f45c33db8654b84593671fde441d20b4688c7dcc4a4106974Approve32278532023-03-27 10:55:429 hrs 53 mins ago0xdae55f2c0367f24d13e72e75392cf2d68a450f7e IN  Wormhole: WBTC Token0 GLMR0.006371889
0xb7862eb83ede57aa495d780bec85b8f6c2d058c5f2a551faf768f13b99c4e701Approve32274012023-03-27 9:20:4811 hrs 28 mins ago0xfdf020873c7635f5334deced0c8fde7bf2f37439 IN  Wormhole: WBTC Token0 GLMR0.00627453
0xc0aeca329217ce4e53239598079140718b730355f406d1478fb692cc75adf6d4Approve32259812023-03-27 4:27:4816 hrs 21 mins ago0x1b10ef711c377f8ae903fdad05ea98e0b7a526f7 IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x369d7178b16aa281af36719502861e85f4c3445ff9ff80ec29de1d7f24d0db2bApprove32252622023-03-27 1:59:2418 hrs 49 mins ago0xdc45ad3e17fedf58526d65514d1d61d4ca2617dc IN  Wormhole: WBTC Token0 GLMR0.0042239225
0x98971d8a4bf96547401416294cceac7e67caf498c799b74c086fd3e9aa996044Approve32252532023-03-27 1:57:1818 hrs 51 mins ago0xdc45ad3e17fedf58526d65514d1d61d4ca2617dc IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x8f6845b6aa9910249564610cfcc501d53446b70e236b6b3f8e1f1b33f38dbaf1Approve32241412023-03-26 22:11:1222 hrs 37 mins ago0xd190a91943920e18285c6abac706412db4e61e19 IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x9069a09874fbedc11daaeb91dcebaa95674e39d548a3f464ef782b310c056765Approve32239322023-03-26 21:28:3623 hrs 20 mins ago0x539460bd8d7d6130ce6c4a65c0b59da3b3d2da42 IN  Wormhole: WBTC Token0 GLMR0.0062790945
0x30b9745b8a91c82d3342455a5c7f417ea68c1503a8a1caea6d85b534d41f1cb0Approve32237592023-03-26 20:53:3023 hrs 55 mins ago0xa8bca1b6deec7aadeebf12eeceb53eda19d22a6a IN  Wormhole: WBTC Token0 GLMR0.0062790945
0x79fecee1a4bc69c80da12b7f30b68cec6ae3d73240f0aef2fa31a495ca1da2dbApprove32228702023-03-26 17:49:241 day 2 hrs ago0x374e34ae67d2f42ebc7d0ba51c7da806ecee34c5 IN  Wormhole: WBTC Token0 GLMR0.006371889
0x4e67016ce53eeaf8ed6a8cfe29063f1ffed154a924495785effaedc5bfaf4d50Approve32226672023-03-26 17:07:001 day 3 hrs ago0xa92bc5c4215d87cea4e56484661bfd2939178a5d IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x061280466237575e17785cedc4ebc57e9afd82845954ab80c51ed523d081dc20Approve32223052023-03-26 15:52:001 day 4 hrs ago0xf53109bb46b37d030b8cd7dbb09972d078553647 IN  Wormhole: WBTC Token0 GLMR0.0062449905
0x5e3e2b0f807e33948ee1b0fba002d677e6cc27c4e9c85368b940dbd85ecfff1bApprove32220922023-03-26 15:07:421 day 5 hrs ago0xf53109bb46b37d030b8cd7dbb09972d078553647 IN  Wormhole: WBTC Token0 GLMR0.0062449905
0xae2a7ffd88f72f026b2a05f484e50228af98803ee107d69db825df64f72353faApprove32218122023-03-26 14:09:361 day 6 hrs ago0x6a91732a5aa0ecbfdd591d5d5989c74e05174dff IN  Wormhole: WBTC Token0 GLMR0.0062790945
0xdb5f959c74bec9b1fbb542e5bd660d84d70823a33cc7069a201cd8d6ceeb3977Approve32206242023-03-26 10:01:241 day 10 hrs ago0xbf09358e054d2c88f47fea5afc2299506118d822 IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x7297f59d9fc7c3e11a519db66ffc9c06555df192308c69532fe6dc9e59fa894dApprove32201512023-03-26 8:23:241 day 12 hrs ago0x0697860cb00f974d59f84c7ce31e249743317623 IN  Wormhole: WBTC Token0 GLMR0.0062437725
0x27fd1dede055758ad173952b468a5784e13ea5af13fec38d3b19adb36f9c41ecApprove32200702023-03-26 8:06:301 day 12 hrs ago0xb4fcef59217ef393af27dcc700b8a32cc0d48811 IN  Wormhole: WBTC Token0 GLMR0.0062437725
0xe0760d063bf715e3419400e85bd4b109445e8eb57035bc31e657219d50f1b08bApprove32200322023-03-26 7:58:361 day 12 hrs ago0x6ced59a8d2da7bdf3e6c2920f632421a8f3c34d1 IN  Wormhole: WBTC Token0 GLMR0.004116216
0xd8614a008debdadb6458daf33c40e348e5244c3ef4d488a137a1d9de05ec69e5Approve32186292023-03-26 3:11:001 day 17 hrs ago0x24dc43d37852e8008a9934c519bb7483dee70cbe IN  Wormhole: WBTC Token0 GLMR0.0062437725
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OVERVIEW

Wormhole is a generic message passing protocol that connects to multiple chains including Ethereum, Solana, Terra, Binance Smart Chain, Polygon, Avalanche, Oasis, Fantom, Karura, Celo, Acala, Aurora and Klaytn.

Latest 1 internal transaction
Parent Txn Hash Block From To Value
0xff59b8ef6ec448319ab430cef6196e55c467c171569a46c945876b115da94cf419926732022-10-02 14:17:00176 days 6 hrs ago Wormhole: Token Bridge  Contract Creation0 GLMR
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xab3f0245b83feb11d15aaffefd7ad465a59817ed

Contract Name:
BridgeToken

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 200 runs

Other Settings:
istanbul EvmVersion, Apache-2.0 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at moonbeam.moonscan.io on 2022-12-01
*/

// File: @openzeppelin/contracts/proxy/beacon/IBeacon.sol


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: @openzeppelin/contracts/proxy/Proxy.sol


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 {
        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/utils/Address.sol


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;
        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");

        (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");

        (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");

        (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");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/StorageSlot.sol


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
        }
    }
}

// File: @openzeppelin/contracts/proxy/ERC1967/ERC1967Upgrade.sol


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 {
        _upgradeTo(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
            _upgradeTo(newImplementation);
        }
    }

    /**
     * @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;
    }

    /**
     * @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);
        }
    }
}

// File: @openzeppelin/contracts/proxy/beacon/BeaconProxy.sol


pragma solidity ^0.8.0;



/**
 * @dev This contract implements a proxy that gets the implementation address for each call from a {UpgradeableBeacon}.
 *
 * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't
 * conflict with the storage layout of the implementation behind the proxy.
 *
 * _Available since v3.4._
 */
contract BeaconProxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the proxy with `beacon`.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
     * will typically be an encoded function call, and allows initializating the storage of the proxy like a Solidity
     * constructor.
     *
     * Requirements:
     *
     * - `beacon` must be a contract with the interface {IBeacon}.
     */
    constructor(address beacon, bytes memory data) payable {
        assert(_BEACON_SLOT == bytes32(uint256(keccak256("eip1967.proxy.beacon")) - 1));
        _upgradeBeaconToAndCall(beacon, data, false);
    }

    /**
     * @dev Returns the current beacon address.
     */
    function _beacon() internal view virtual returns (address) {
        return _getBeacon();
    }

    /**
     * @dev Returns the current implementation address of the associated beacon.
     */
    function _implementation() internal view virtual override returns (address) {
        return IBeacon(_getBeacon()).implementation();
    }

    /**
     * @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.
     *
     * Requirements:
     *
     * - `beacon` must be a contract.
     * - The implementation returned by `beacon` must be a contract.
     */
    function _setBeacon(address beacon, bytes memory data) internal virtual {
        _upgradeBeaconToAndCall(beacon, data, false);
    }
}

// File: contracts/bridge/token/Token.sol

// contracts/Structs.sol

pragma solidity ^0.8.0;

contract BridgeToken is BeaconProxy {
    constructor(address beacon, bytes memory data) BeaconProxy(beacon, data) {

    }
}

Contract ABI

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://3e23ac4f79a95247999f8e0df94ea5bd5e38561ccfd051b0ea50ba9aea59b8f1
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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