CELO Price: $0.796914 (-3.52%)
Gas: 12.2 GWei

Contract

0x796Dff6D74F3E27060B71255Fe517BFb23C93eed

Overview

CELO Balance

Celo Chain LogoCelo Chain LogoCelo Chain Logo633,720.647331733342267066 CELO

CELO Value

$505,021.01 (@ $0.80/CELO)

Token Holdings

Transaction Hash
Method
Block
From
To
Complete Transfe...282222662024-10-13 1:40:1237 mins ago1728783612IN
Wormhole: Token Bridge
0 CELO0.0039518515
Transfer Tokens282220372024-10-13 1:21:0756 mins ago1728782467IN
Wormhole: Token Bridge
0 CELO0.0017525515
Transfer Tokens282218382024-10-13 1:04:321 hr ago1728781472IN
Wormhole: Token Bridge
0 CELO0.0017527315
Transfer Tokens282217992024-10-13 1:01:171 hr ago1728781277IN
Wormhole: Token Bridge
0 CELO0.0017527315
Complete Transfe...282205822024-10-12 23:19:522 hrs ago1728775192IN
Wormhole: Token Bridge
0 CELO0.0039514915
Transfer Tokens282198812024-10-12 22:21:273 hrs ago1728771687IN
Wormhole: Token Bridge
0 CELO0.0011502510
Complete Transfe...282191092024-10-12 21:17:075 hrs ago1728767827IN
Wormhole: Token Bridge
0 CELO0.0039522115
Complete Transfe...282190452024-10-12 21:11:475 hrs ago1728767507IN
Wormhole: Token Bridge
0 CELO0.0039511315
Complete Transfe...282189032024-10-12 20:59:575 hrs ago1728766797IN
Wormhole: Token Bridge
0 CELO0.0039518515
Transfer Tokens282188442024-10-12 20:55:025 hrs ago1728766502IN
Wormhole: Token Bridge
0 CELO0.0040922335
Transfer Tokens282159722024-10-12 16:55:429 hrs ago1728752142IN
Wormhole: Token Bridge
0 CELO0.0017525515
Transfer Tokens282156312024-10-12 16:27:179 hrs ago1728750437IN
Wormhole: Token Bridge
0 CELO0.0017525515
Complete Transfe...282136062024-10-12 13:38:3212 hrs ago1728740312IN
Wormhole: Token Bridge
0 CELO0.0039525715
Transfer Tokens282133422024-10-12 13:16:3213 hrs ago1728738992IN
Wormhole: Token Bridge
0 CELO0.0011215710
Complete Transfe...282119892024-10-12 11:23:4714 hrs ago1728732227IN
Wormhole: Token Bridge
0 CELO0.0028984211
Transfer Tokens282111982024-10-12 10:17:5215 hrs ago1728728272IN
Wormhole: Token Bridge
0 CELO0.0017527315
Complete Transfe...282099112024-10-12 8:30:3717 hrs ago1728721837IN
Wormhole: Token Bridge
0 CELO0.0039522115
Transfer Tokens282089802024-10-12 7:13:0119 hrs ago1728717181IN
Wormhole: Token Bridge
0 CELO0.0017527315
Transfer Tokens282081982024-10-12 6:07:5120 hrs ago1728713271IN
Wormhole: Token Bridge
0 CELO0.0017527315
Transfer Tokens282079752024-10-12 5:49:1620 hrs ago1728712156IN
Wormhole: Token Bridge
0 CELO0.0017527315
Transfer Tokens282078372024-10-12 5:37:4620 hrs ago1728711466IN
Wormhole: Token Bridge
0 CELO0.0017525515
Transfer Tokens282077282024-10-12 5:28:4120 hrs ago1728710921IN
Wormhole: Token Bridge
0 CELO0.0017525515
Transfer Tokens282074392024-10-12 5:04:3621 hrs ago1728709476IN
Wormhole: Token Bridge
0 CELO0.0040918135
Transfer Tokens282073622024-10-12 4:58:1121 hrs ago1728709091IN
Wormhole: Token Bridge
0 CELO0.0040913935
Transfer Tokens282056482024-10-12 2:35:2123 hrs ago1728700521IN
Wormhole: Token Bridge
0 CELO0.0040918135
View all transactions

Latest 25 internal transactions (View All)

Parent Transaction Hash Block From To
280123012024-09-30 22:02:3612 days ago1727733756
Wormhole: Token Bridge
 Contract Creation0 CELO
272668122024-08-18 18:36:0955 days ago1724006169
Wormhole: Token Bridge
 Contract Creation0 CELO
270850542024-08-08 6:08:5665 days ago1723097336
Wormhole: Token Bridge
 Contract Creation0 CELO
269357562024-07-30 14:45:4274 days ago1722350742
Wormhole: Token Bridge
 Contract Creation0 CELO
269353042024-07-30 14:08:0274 days ago1722348482
Wormhole: Token Bridge
 Contract Creation0 CELO
269345132024-07-30 13:02:0774 days ago1722344527
Wormhole: Token Bridge
 Contract Creation0 CELO
269324382024-07-30 10:09:1274 days ago1722334152
Wormhole: Token Bridge
 Contract Creation0 CELO
269236442024-07-29 21:56:1775 days ago1722290177
Wormhole: Token Bridge
 Contract Creation0 CELO
269234052024-07-29 21:36:2175 days ago1722288981
Wormhole: Token Bridge
 Contract Creation0 CELO
269231862024-07-29 21:18:0675 days ago1722287886
Wormhole: Token Bridge
 Contract Creation0 CELO
269230992024-07-29 21:10:5175 days ago1722287451
Wormhole: Token Bridge
 Contract Creation0 CELO
269229142024-07-29 20:55:2575 days ago1722286525
Wormhole: Token Bridge
 Contract Creation0 CELO
269227812024-07-29 20:44:2075 days ago1722285860
Wormhole: Token Bridge
 Contract Creation0 CELO
266788402024-07-15 17:50:3989 days ago1721065839
Wormhole: Token Bridge
 Contract Creation0 CELO
260617302024-06-10 0:36:11125 days ago1717979771
Wormhole: Token Bridge
 Contract Creation0 CELO
258444092024-05-28 10:45:12137 days ago1716893112
Wormhole: Token Bridge
 Contract Creation0 CELO
257585582024-05-23 11:30:31142 days ago1716463831
Wormhole: Token Bridge
 Contract Creation0 CELO
255090432024-05-09 0:55:08157 days ago1715216108
Wormhole: Token Bridge
 Contract Creation0 CELO
252557032024-04-24 8:59:18171 days ago1713949158
Wormhole: Token Bridge
 Contract Creation0 CELO
252491052024-04-23 23:49:25172 days ago1713916165
Wormhole: Token Bridge
 Contract Creation0 CELO
252068002024-04-21 13:03:34174 days ago1713704614
Wormhole: Token Bridge
 Contract Creation0 CELO
250617432024-04-13 3:34:41182 days ago1712979281
Wormhole: Token Bridge
 Contract Creation0 CELO
248987202024-04-03 17:09:02192 days ago1712164142
Wormhole: Token Bridge
 Contract Creation0 CELO
247815922024-03-27 22:28:09199 days ago1711578489
Wormhole: Token Bridge
 Contract Creation0 CELO
247726372024-03-27 10:01:53199 days ago1711533713
Wormhole: Token Bridge
 Contract Creation0 CELO
View All Internal Transactions
Loading...
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
TokenBridge

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, Apache-2.0 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at celoscan.io on 2022-05-16
*/

// File: @openzeppelin/contracts/proxy/Proxy.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        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

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/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/ERC1967/ERC1967Proxy.sol

pragma solidity ^0.8.0;


/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _upgradeToAndCall(_logic, _data, false);
    }

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        return ERC1967Upgrade._getImplementation();
    }
}

// File: contracts/bridge/TokenBridge.sol

// contracts/Wormhole.sol

pragma solidity ^0.8.0;

contract TokenBridge is ERC1967Proxy {
    constructor (address implementation, bytes memory initData)
    ERC1967Proxy(
        implementation,
        initData
    )
    {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"implementation","type":"address"},{"internalType":"bytes","name":"initData","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"}]

Contract Creation Code

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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)

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

-----Decoded View---------------
Arg [0] : implementation (address): 0x51b5123a7b0F9b2bA265f9c4C8de7D78D52f510F
Arg [1] : initData (bytes): 0x3bfa0638000000000000000000000000b91e3638f82a1facb28690b37e3aae45d2c33808000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000a321448d90d4e5b0a732867c18ea198e75cac48e00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000004000000000000000000000000a5f208e072434bc67592e4c49c1b991ba79bca460000000000000000000000000000000000000000000000000000000000000000

-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 00000000000000000000000051b5123a7b0f9b2ba265f9c4c8de7d78d52f510f
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000e4
Arg [3] : 3bfa0638000000000000000000000000b91e3638f82a1facb28690b37e3aae45
Arg [4] : d2c3380800000000000000000000000000000000000000000000000000000000
Arg [5] : 0000000e000000000000000000000000a321448d90d4e5b0a732867c18ea198e
Arg [6] : 75cac48e00000000000000000000000000000000000000000000000000000000
Arg [7] : 0000000100000000000000000000000000000000000000000000000000000000
Arg [8] : 00000004000000000000000000000000a5f208e072434bc67592e4c49c1b991b
Arg [9] : a79bca4600000000000000000000000000000000000000000000000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000000


Deployed Bytecode Sourcemap

22598:183:0:-:0;;;;;;2959:11;:9;:11::i;:::-;22598:183;;2728:11;2365:113;2442:28;2452:17;:15;:17::i;:::-;2442:9;:28::i;:::-;2365:113::o;10109:200::-;10192:12;10224:77;10245:6;10253:4;10224:77;;;;;;;;;;;;;;;;;:20;:77::i;:::-;10217:84;10109:200;-1:-1:-1;;;10109:200:0:o;4515:387::-;4838:20;4886:8;;;4515:387::o;13461:151::-;13590:4;13565:40::o;22348:142::-;22415:12;22447:35;15236:66;15597:54;-1:-1:-1;;;;;15597:54:0;;15517:142;22447:35;22440:42;;22348:142;:::o;955:918::-;1298:14;1295:1;1292;1279:34;1516:1;1513;1497:14;1494:1;1478:14;1471:5;1458:60;1595:16;1592:1;1589;1574:38;1635:6;1704:68;;;;1823:16;1820:1;1813:27;1704:68;1740:16;1737:1;1730:27;10503:396;10648:12;4838:20;;10673:69;;;;-1:-1:-1;;;10673:69:0;;883:2:1;10673:69:0;;;865:21:1;922:2;902:18;;;895:30;961:34;941:18;;;934:62;-1:-1:-1;;;1012:18:1;;;1005:36;1058:19;;10673:69:0;;;;;;;;;10756:12;10770:23;10797:6;-1:-1:-1;;;;;10797:19:0;10817:4;10797:25;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;10755:67;;;;10840:51;10857:7;10866:10;10878:12;10840:16;:51::i;:::-;10833:58;10503:396;-1:-1:-1;;;;;;10503:396:0:o;11127:712::-;11277:12;11306:7;11302:530;;;-1:-1:-1;11337:10:0;11330:17;;11302:530;11451:17;;:21;11447:374;;11649:10;11643:17;11710:15;11697:10;11693:2;11689:19;11682:44;11597:148;11792:12;11785:20;;-1:-1:-1;;;11785:20:0;;;;;;;;:::i;14:274:1:-;143:3;181:6;175:13;197:53;243:6;238:3;231:4;223:6;219:17;197:53;:::i;:::-;266:16;;;;;151:137;-1:-1:-1;;151:137:1:o;293:383::-;442:2;431:9;424:21;405:4;474:6;468:13;517:6;512:2;501:9;497:18;490:34;533:66;592:6;587:2;576:9;572:18;567:2;559:6;555:15;533:66;:::i;:::-;660:2;639:15;-1:-1:-1;;635:29:1;620:45;;;;667:2;616:54;;414:262;-1:-1:-1;;414:262:1:o;1088:258::-;1160:1;1170:113;1184:6;1181:1;1178:13;1170:113;;;1260:11;;;1254:18;1241:11;;;1234:39;1206:2;1199:10;1170:113;;;1301:6;1298:1;1295:13;1292:2;;;1336:1;1327:6;1322:3;1318:16;1311:27;1292:2;;1141:205;;;:::o

Swarm Source

ipfs://c651652cc0041da7a6ccfbb62ab4d69a33d006e787e6a41c09cd2b8fb857905d

Block Transaction Gas Used Reward
view all blocks validated

Block Uncle Number Difficulty Gas Used Reward
View All Uncles
Loading...
Loading
Loading...
Loading
Loading...
Loading

Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.