Contract 0x4318cb63a2b8edf2de971e2f17f77097e499459d 2

 
 
Txn Hash
Method
Block
From
To
Value [Txn Fee]
0xb3b4c0e10c5c1d7c7749145851249d422040462b83972c51bc8d7d8537186eaeApprove432613332023-05-28 19:57:162 hrs 19 mins ago0x6b77d7dc2fb63c94591a201de38958c2f18ac755 IN  Wormhole: USDCet Token0 MATIC0.006157399949 148.089178416
0x63d26aea6731ff3c87eac8818749cb8c3164857e59b9c888822fb9b289451178Approve432613202023-05-28 19:56:482 hrs 19 mins ago0x6b77d7dc2fb63c94591a201de38958c2f18ac755 IN  Wormhole: USDCet Token0 MATIC0.010017163914 162.936350855
0xb503782d576b17f058fb31f8109cd9cac34baaa623cf09301c8a60fc848244b3Approve432501042023-05-28 13:11:569 hrs 4 mins ago juliofc2913.bitcoin  IN  Wormhole: USDCet Token0 MATIC0.006541444315157.371095228
0x426961555b05992bb7be52f9ce4621b93458140b02de091cb69337e889a6c314Approve432500762023-05-28 13:10:569 hrs 5 mins ago juliofc2913.bitcoin  IN  Wormhole: USDCet Token0 MATIC0.009929563542161.54299938
0xc1764a3524c237e6e20c94322276771f8e2e7a53e9d835cb5a679c5471534c19Approve432418722023-05-28 8:14:4814 hrs 1 min ago0x120b075d9794bbe4eb86e1517290a788a5b8ad00 IN  Wormhole: USDCet Token0 MATIC0.00932067505 151.637058099
0xbca2181c6ea61cefc8d57e9d91900cdd8d2d9489c28d965314b84c32df09cfe4Approve432394152023-05-28 6:47:4315 hrs 28 mins ago0x4f7235b07411c11597c2243afa06604b15b09864 IN  Wormhole: USDCet Token0 MATIC0.01453360835 236.399556769
0x60323a481f5958bfb5b0219bb73c509cd8e02341d0028b36923320bc08e0813aApprove432257782023-05-27 22:25:5723 hrs 50 mins ago0x0a9b5f2122a5c030521524d076f02d4cba6ac8b1 IN  Wormhole: USDCet Token0 MATIC0.009905694243 161.154672313
0x502e6135c40e4aad119d2b649a33245f536f0f1cc629cf14183255258d05e61bApprove432217192023-05-27 19:58:491 day 2 hrs ago jairo33971188.nft  IN  Wormhole: USDCet Token0 MATIC0.005796634216 139.452792272
0x8216aca0b86bd02e985e150b5e16536ca0435e54aa88b52dae2bc2f69ad89f6dApprove432216562023-05-27 19:56:351 day 2 hrs ago jairo33971188.nft  IN  Wormhole: USDCet Token0 MATIC0.010193117879 165.830736488
0x8f1f72b3d032f915ae196db30e4f00a20eebf0525a55520d9420f060f0f57e9dApprove432202092023-05-27 19:02:261 day 3 hrs ago0xfb19b01a290a8bec6ae2a9211451ab19a62af0fe IN  Wormhole: USDCet Token0 MATIC0.00841326932 136.104009072
0x728cd460301de913f97d7eca8a5127b6fba790290be4b9cc979bdf3e5c998267Approve432174942023-05-27 17:20:521 day 4 hrs ago0x5aabfeff89206664f30af6478df1b56c1b04d349 IN  Wormhole: USDCet Token0 MATIC0.00860538140
0x1a24fde23793c5ea79a744b7e3d3eb30242f167918365f4a3fc81e0827ce2372Approve432044982023-05-27 9:26:121 day 12 hrs ago0x90e8a6f5b119fd01ee3e94588b251ba809870306 IN  Wormhole: USDCet Token0 MATIC0.008976945034 146.016445204
0xd8b34c2ff5285f69758fcd724aae558eaf191e0d99e6f2dfb8de3aef55904461Approve432043502023-05-27 9:20:231 day 12 hrs ago0x90e8a6f5b119fd01ee3e94588b251ba809870306 IN  Wormhole: USDCet Token0 MATIC0.008804645398 143.213868126
0xfde2673e804cf3d73ec0fab6a3278caec367b95da0e064c39a15ed5c92ec2022Approve431996402023-05-27 6:24:101 day 15 hrs ago0x2702d89c1c8658b49c45dd460deebcc45faec03c IN  Wormhole: USDCet Token0 MATIC0.010115034989 164.560414363
0x84c1673fa4951a0cd956cf8d1cd3d0678a61345cc53d367ab9d37866a743c48dApprove431769522023-05-26 16:33:232 days 5 hrs ago0x815bd2d70274b09a855ef5e619f1fbcea55c7844 IN  Wormhole: USDCet Token0 MATIC0.00634208518 152.57500373
0x0babeb7b6ff3066f08f82062706605e1b982f4feeba4220081c5ab017c549eb8Approve431769242023-05-26 16:32:232 days 5 hrs ago0x815bd2d70274b09a855ef5e619f1fbcea55c7844 IN  Wormhole: USDCet Token0 MATIC0.009241554025 150.349846679
0xbffbe583575943243698b4b25f2588cf2256977826aa75288747d70e62e9aba9Approve431650192023-05-26 9:26:062 days 12 hrs ago0xd6b97c294530ed250b64f01f26ff4f28dd6436c1 IN  Wormhole: USDCet Token0 MATIC0.010173336305 165.508912181
0xf591333df20bb56c0fb7b753806863bcf12d40c17ce3ebb61f03b92370c71f3eApprove431638322023-05-26 8:44:002 days 13 hrs ago web3intel.crypto  IN  Wormhole: USDCet Token0 MATIC0.009226859087 150.110776313
0x2e03aad3de63bced921006cf3abc619d34331077a4fe0d47da9feaef4c30153fTransfer431634332023-05-26 8:29:382 days 13 hrs ago web3intel.crypto  IN  Wormhole: USDCet Token0 MATIC0.013687821917 204.867644286
0x9d4d39de8cb204636b93ecedf6b0b380e95510a25045e4a7a3ca96e9480caebcApprove431625162023-05-26 7:56:292 days 14 hrs ago0x219bacef7987095b3d3f59c4b8f0d4cc636a833b IN  Wormhole: USDCet Token0 MATIC0.008452861471 137.518692492
0x64f898f6b29a2584fdacd4677d5c0d77a80947416769179711060338af9b1d6bApprove431624362023-05-26 7:53:392 days 14 hrs ago0xeec4f106a72857e5a02a9d55340331d74a00305c IN  Wormhole: USDCet Token0 MATIC0.010782140017 175.379235468
0x55ae65ddc1745457b410557057db437d034a928bde0cb34ffd638aaaf225eb5cApprove431623652023-05-26 7:51:062 days 14 hrs ago0xeec4f106a72857e5a02a9d55340331d74a00305c IN  Wormhole: USDCet Token0 MATIC0.011004741 179
0x2fb387452bcf7eeced5587ad1161c943367d3f7d1141be5565b43b28f204ef41Approve431569762023-05-26 4:30:002 days 17 hrs ago0xcf2ca4da65eac2ed456664ca0906e9cb86baff8b IN  Wormhole: USDCet Token0 MATIC0.016906725 275
0xabf8f419ec06d5ca02ad3d65a673cf7e1ecd1b82b18b136957f7be2262fdd6e2Approve431451272023-05-25 21:21:263 days 55 mins ago0x5e11cd6a2b76dbd66aecb970bb30c0d7996d9269 IN  Wormhole: USDCet Token0 MATIC0.008467968242 137.764462923
0x98ca79bd094eb0bf9829c98c05b4e2b3d9cef417c9671bdeb4274dd4aeb19d07Approve431229072023-05-25 7:50:433 days 14 hrs ago kusamalisting.wallet  IN  Wormhole: USDCet Token0 MATIC0.005897041475141.827400269
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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 and Oasis.

Latest 1 internal transaction
Parent Txn Hash Block From To Value
0x31614edbeab53b3797910ee304a29994c6c924e45f9a42777a7dc597564400d1213494332021-11-14 6:45:40560 days 15 hrs ago Wormhole: Token Bridge  Contract Creation0 MATIC
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x5E0294Af1732498C77F8dB015a2d52a76298542B

Contract Name:
BridgeToken

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion, Apache-2.0 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at polygonscan.com on 2021-12-08
*/

// SPDX-License-Identifier: Apache 2

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


// OpenZeppelin Contracts v4.4.0 (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/utils/Address.sol


// OpenZeppelin Contracts v4.4.0 (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/proxy/Proxy.sol


// OpenZeppelin Contracts v4.4.0 (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/proxy/beacon/IBeacon.sol


// OpenZeppelin Contracts v4.4.0 (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/ERC1967/ERC1967Upgrade.sol


// OpenZeppelin Contracts v4.4.0 (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


// OpenZeppelin Contracts v4.4.0 (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: github/certusone/wormhole/ethereum/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 Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"beacon","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"stateMutability":"nonpayable","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"},{"stateMutability":"payable","type":"receive"}]

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://023fb812aee356ef775e058780e58e0f0e320743ef57a43f3069e9559fd8a41f
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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