Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

• interface IERC20
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address recipient, ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(address sender, ...
•    - function _msgSender()
•    - function _msgData()
•    - function owner()
•    - function renounceOwnership()
•    - function transferOwnership(address ne ...
• library SafeMath
•    - function tryAdd(uint256 a, uint256 b)
•    - function trySub(uint256 a, uint256 b)
•    - function tryMul(uint256 a, uint256 b)
•    - function tryDiv(uint256 a, uint256 b)
•    - function tryMod(uint256 a, uint256 b)
•    - function add(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b)
•    - function mul(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b)
•    - function mod(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b, st ...
•    - function div(uint256 a, uint256 b, st ...
•    - function mod(uint256 a, uint256 b, st ...
• library Address
•    - function isContract(address account)
•    - function sendValue(address payable re ...
•    - function functionCall(address target, ...
•    - function functionCall(address target, ...
•    - function functionCallWithValue(addres ...
•    - function functionCallWithValue(addres ...
•    - function functionStaticCall(address t ...
•    - function functionStaticCall(address t ...
•    - function functionDelegateCall(address ...
•    - function functionDelegateCall(address ...
•    - function _verifyCallResult(bool succe ...
• library SafeERC20
•    - function safeTransfer(IERC20 token, a ...
•    - function safeTransferFrom(IERC20 toke ...
•    - function safeApprove(IERC20 token, ad ...
•    - function safeIncreaseAllowance(IERC20 ...
•    - function safeDecreaseAllowance(IERC20 ...
•    - function _callOptionalReturn(IERC20 t ...
•  contract bBetaAirdrop is Ownable *
•    - function setToken(address _token)
•    - function setSigner(address _signer)
•    - function claim(
•    - function verifyProof(
•    - function withdraw(address _token)

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2021-05-22
*/

// SPDX-License-Identifier: NONE

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

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


pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// File: @openzeppelin/contracts/math/SafeMath.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

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


pragma solidity >=0.6.2 <0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

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

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/token/ERC20/SafeERC20.sol


pragma solidity >=0.6.0 <0.8.0;




/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}


pragma solidity ^0.6.12;

contract bBetaAirdrop is Ownable {
  using SafeERC20 for IERC20;
  using SafeMath for uint256;

  address public token;
  address public signer;

  uint256 public totalClaimed;

  mapping(address => bool) public isClaimed;
  event Claimed(address account, uint256 amount);

  constructor(address _signer) public {
    signer = _signer;
  }


  function setToken(address _token) public onlyOwner {
    token = _token;
  }

  function setSigner(address _signer) public onlyOwner {
    signer = _signer;
  }

  function claim(
    address account,
    uint256 amount,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external {
    // require(msg.sender == account, "bBetaAirdrop: wrong sender");
    require(!isClaimed[account], "bBetaAirdrop: Already claimed");
    require(verifyProof(account, amount, v, r, s), "bBetaAirdrop: Invalid signer");  

    totalClaimed = totalClaimed + amount;
    isClaimed[account] = true;
    IERC20(token).safeTransfer(account, amount);

    emit Claimed(account, amount);
  }

  function verifyProof(
    address account,
    uint256 amount,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) public view returns (bool) {
    bytes32 digest = keccak256(abi.encodePacked(account, amount));
    address signatory = ecrecover(digest, v, r, s);
    return signatory == signer;
  }

  function withdraw(address _token) external onlyOwner {
    if (_token == address(0)) {
      payable(owner()).transfer(address(this).balance);
    } else {
      uint256 balance = IERC20(_token).balanceOf(address(this));
      IERC20(_token).safeTransfer(owner(), balance);
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Claimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"setToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalClaimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"verifyProof","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

00000000000000000000000017980f5bab4c24a8c97344a82f54e3b34d00bd16

-----Decoded View---------------
Arg [0] : _signer (address): 0x17980f5BAb4c24A8c97344A82F54E3b34d00bD16

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000017980f5bab4c24a8c97344a82f54e3b34d00bd16

25440:1654:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;25801:78;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;25567:21;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;26801:290;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;25885:82;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;5626:148;;;:::i;:::-;;25629:41;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;4975:87;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;25595:27;;;:::i;:::-;;;;;;;;;;;;;;;;;;;26493:302;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;25973:514;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;5929:244;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;25542:20;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;25801:78;5206:12;:10;:12::i;:::-;5195:23;;:7;:5;:7::i;:::-;:23;;;5187:68;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;25867:6:::1;25859:5;;:14;;;;;;;;;;;;;;;;;;25801:78:::0;:::o;25567:21::-;;;;;;;;;;;;;:::o;26801:290::-;5206:12;:10;:12::i;:::-;5195:23;;:7;:5;:7::i;:::-;:23;;;5187:68;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;26883:1:::1;26865:20;;:6;:20;;;26861:225;;;26904:7;:5;:7::i;:::-;26896:25;;:48;26922:21;26896:48;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;::::0;::::1;;;;;;26861:225;;;26967:15;26992:6;26985:24;;;27018:4;26985:39;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;;;;;;;26967:57;;27033:45;27061:7;:5;:7::i;:::-;27070;27040:6;27033:27;;;;:45;;;;;:::i;:::-;26861:225;;26801:290:::0;:::o;25885:82::-;5206:12;:10;:12::i;:::-;5195:23;;:7;:5;:7::i;:::-;:23;;;5187:68;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;25954:7:::1;25945:6;;:16;;;;;;;;;;;;;;;;;;25885:82:::0;:::o;5626:148::-;5206:12;:10;:12::i;:::-;5195:23;;:7;:5;:7::i;:::-;:23;;;5187:68;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;5733:1:::1;5696:40;;5717:6;::::0;::::1;;;;;;;;5696:40;;;;;;;;;;;;5764:1;5747:6:::0;::::1;:19;;;;;;;;;;;;;;;;;;5626:148::o:0;25629:41::-;;;;;;;;;;;;;;;;;;;;;;:::o;4975:87::-;5021:7;5048:6;;;;;;;;;;;5041:13;;4975:87;:::o;25595:27::-;;;;:::o;26493:302::-;26629:4;26642:14;26686:7;26695:6;26669:33;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;26659:44;;;;;;26642:61;;26710:17;26730:26;26740:6;26748:1;26751;26754;26730:26;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;26710:46;;26783:6;;;;;;;;;;;26770:19;;:9;:19;;;26763:26;;;;26493:302;;;;;;;:::o;25973:514::-;26177:9;:18;26187:7;26177:18;;;;;;;;;;;;;;;;;;;;;;;;;26176:19;26168:61;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;26244:37;26256:7;26265:6;26273:1;26276;26279;26244:11;:37::i;:::-;26236:78;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;26355:6;26340:12;;:21;26325:12;:36;;;;26389:4;26368:9;:18;26378:7;26368:18;;;;;;;;;;;;;;;;:25;;;;;;;;;;;;;;;;;;26400:43;26427:7;26436:6;26407:5;;;;;;;;;;;26400:26;;;;:43;;;;;:::i;:::-;26457:24;26465:7;26474:6;26457:24;;;;;;;;;;;;;;;;;;;;;;;;;;25973:514;;;;;:::o;5929:244::-;5206:12;:10;:12::i;:::-;5195:23;;:7;:5;:7::i;:::-;:23;;;5187:68;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6038:1:::1;6018:22;;:8;:22;;;;6010:73;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6128:8;6099:38;;6120:6;::::0;::::1;;;;;;;;6099:38;;;;;;;;;;;;6157:8;6148:6;::::0;:17:::1;;;;;;;;;;;;;;;;;;5929:244:::0;:::o;25542:20::-;;;;;;;;;;;;;:::o;3512:106::-;3565:15;3600:10;3593:17;;3512:106;:::o;22337:177::-;22420:86;22440:5;22470:23;;;22495:2;22499:5;22447:58;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;22420:19;:86::i;:::-;22337:177;;;:::o;24642:761::-;25066:23;25092:69;25120:4;25092:69;;;;;;;;;;;;;;;;;25100:5;25092:27;;;;:69;;;;;:::i;:::-;25066:95;;25196:1;25176:10;:17;:21;25172:224;;;25318:10;25307:30;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;25299:85;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;25172:224;24642:761;;;:::o;17332:195::-;17435:12;17467:52;17489:6;17497:4;17503:1;17506:12;17467:21;:52::i;:::-;17460:59;;17332:195;;;;;:::o;18384:530::-;18511:12;18569:5;18544:21;:30;;18536:81;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;18636:18;18647:6;18636:10;:18::i;:::-;18628:60;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;18762:12;18776:23;18803:6;:11;;18823:5;18831:4;18803:33;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;18761:75;;;;18854:52;18872:7;18881:10;18893:12;18854:17;:52::i;:::-;18847:59;;;;18384:530;;;;;;:::o;14414:422::-;14474:4;14682:12;14793:7;14781:20;14773:28;;14827:1;14820:4;:8;14813:15;;;14414:422;;;:::o;20924:742::-;21039:12;21068:7;21064:595;;;21099:10;21092:17;;;;21064:595;21233:1;21213:10;:17;:21;21209:439;;;21476:10;21470:17;21537:15;21524:10;21520:2;21516:19;21509:44;21424:148;21619:12;21612:20;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;20924:742;;;;;;:::o

ipfs://c3f4894d7b2dbcba3e4fb6d07b5161ce3aeb1c1336d175a2dc9fb51e8b3b3def