Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

interface Decimals {
    function decimals() external view returns (uint8);
}

contract IDO is Ownable {

    using SafeERC20 for IERC20;
    bytes32 public merkleRoot;
    address public token;
    address public tokenPayment;
    uint256 public tokenPerUSDT = 10000;
    uint256 public denominator = 68;
    uint256 public startTime;
    uint256 public endTime;
    uint256 public total;
    bool public isClaimed;

    uint256 public startRelease;
    uint256 public cliff;
    uint256 public vesting;
    uint256 public tge;

    struct Tier {
        uint256 cap;
        uint256 sold;
        uint256 purchaseLimit;
    }

    mapping(uint256 => Tier) public tier;

    mapping (address => uint256) public payAmount;
    mapping (address => uint256) private tokenReleased;
    mapping(address => bool) public admin;
    mapping(bytes => bool) public usedSignatures;

    modifier verifyTransactionAmount(){
        require(payAmount[msg.sender] == 0, "IDO: PURCHASE_LIMIT_WRONG");
        _;
    }

    constructor(bytes32 _merkleRoot, uint256 _start, uint256 _end, address _tokenPayment) {
        merkleRoot = _merkleRoot;
        startTime = _start;
        endTime = _end;
        tokenPayment = _tokenPayment;

        tier[1] = Tier({
        cap: 10010 * 1e6,
        sold: 0,
        purchaseLimit: 143 * 1e6
        });

        tier[2] = Tier({
            cap: 10028 * 1e6,
            sold: 0,
            purchaseLimit: 218 * 1e6
        });

        tier[3] = Tier({
            cap: 15010 * 1e6,
            sold: 0,
            purchaseLimit: 395 * 1e6
        });

        tier[4] = Tier({
            cap: 30004 * 1e6,
            sold: 0,
            purchaseLimit: 577 * 1e6
        });

        tier[5] = Tier({
            cap: 35014 * 1e6,
            sold: 0,
            purchaseLimit: 854 * 1e6
        });
        
    }

    receive() external payable {}

    event SetPrice(uint256 price, uint256 blockTime);
    event SetTime(uint256 startTime, uint256 endTime, uint256 blockTime);
    event SetClaim(bool status, uint256 blockTime);
    event SetToken(address token, uint256 blockTime);
    event Buy(address user, uint256 amount, uint256 total, uint256 blockTime);
    event TokenReleased(address user, uint256 amount, uint256 blockTime);
    event SetMerkleRoot(bytes32 merkleRoot);
    event SetTokenPayment(address tokenPayment);
    event Withdraw(address user, uint256 amount);
    event SetDenominator(uint256 denominator);
    event SetAdmin(address admin, bool status, uint blockTime);
    event SetVesting(uint256 startRelease, uint256 cliff, uint256 vesting, uint256 tge);

    function setTier(uint256 _tier, uint256 _cap, uint256 _purchaseLimit) public onlyOwner() {
        tier[_tier].cap = _cap;
        tier[_tier].purchaseLimit = _purchaseLimit;
    }

    function setVesting(uint256 _startRelease, uint256 _cliff, uint256 _vesting, uint256 _tge) external onlyOwner() {
        require(_tge <= 100, "TGE_WRONG");
        startRelease = _startRelease;
        cliff = _cliff;
        vesting = _vesting;
        tge = _tge;
        emit SetVesting(_startRelease, _cliff, _vesting, _tge);
    }

    function setPrice(uint256 _price) external onlyOwner {
        tokenPerUSDT = _price;
        emit SetPrice(_price, block.timestamp);
    }

    function setDenominator(uint256 _denominator) external onlyOwner {
        denominator = _denominator;
        emit SetDenominator(denominator);
    }

    function setTokenPayment(address _tokenPayment) external onlyOwner {
        tokenPayment = _tokenPayment;
        emit SetTokenPayment(tokenPayment);
    }

    function setTime(uint256 _start, uint256 _end) external onlyOwner {
        startTime = _start;
        endTime = _end;
        emit SetTime(_start, _end, block.timestamp);
    }

    function setClaim(bool status) external onlyOwner {
        isClaimed = status;
        emit SetClaim(status, block.timestamp);
    }

    function setToken(address _token) external onlyOwner {
        token = _token;
        emit SetToken(_token, block.timestamp);
    }

    function setAdmin(address _admin, bool _status) external onlyOwner {
        admin[_admin] =  _status;
        emit SetAdmin(_admin, _status, block.timestamp);
    }

    function setMerkleRoot(bytes32 _merkleRoot) external onlyOwner {
        merkleRoot = _merkleRoot;
        emit SetMerkleRoot(_merkleRoot);
    }

    function withdrawEther(uint256 amount) external onlyOwner {
        require(block.timestamp >= endTime, "The owner can only withdraw ETH after the IDO ends");
        (bool success, ) = msg.sender.call{value: amount}("");
        require(success, "Transfer failed.");
    }

    function withdrawToken(address _token, uint256 amount) external onlyOwner {
        require(block.timestamp >= endTime, "The owner can only withdraw ETH after the IDO ends");
        IERC20(_token).safeTransfer(msg.sender, amount);
    }

    // Function to add an address to the whitelist using MerkleProof
    function buy(bytes32[] memory proof, uint256 _tier, bytes calldata signature) external verifyTransactionAmount() {
        require(!usedSignatures[signature], "IDO: signature used.");
        require(block.timestamp > startTime && block.timestamp < endTime, "IDO: TIME_WRONG");
        bytes32 leaf = keccak256(abi.encodePacked(msg.sender, _tier));
        require(MerkleProof.verify(proof, merkleRoot, leaf), "Invalid Merkle proof");
        bytes32 criteriaMessageHash = getMessageHash(msg.sender, _tier);
        bytes32 ethSignedMessageHash = ECDSA.toEthSignedMessageHash(criteriaMessageHash);
        require(admin[ECDSA.recover(ethSignedMessageHash, signature)],"IDO: invalid signature");
        usedSignatures[signature] = true;
        uint256 amount = tier[_tier].purchaseLimit;
        require(tier[_tier].sold + amount <= tier[_tier].cap, "AMOUNT_WRONG");
        tier[_tier].sold += amount;
        IERC20(tokenPayment).safeTransferFrom(msg.sender, address(this), amount);
        payAmount[msg.sender] += amount;
        emit Buy(msg.sender, amount, tier[_tier].sold, block.timestamp);
    }

    function verify(bytes32[] memory proof, address user, uint256 _tier) external view returns(bool) {
        bytes32 leaf = keccak256(abi.encodePacked(user, _tier));
        bool result = MerkleProof.verify(proof, merkleRoot, leaf);
        return result;
    }

    function released(address _user) public view returns(uint256){
        //withdraw
        return tokenReleased[_user];
    }

    function releasable(address _user) public view returns(uint256){
        uint256 amount;
        if(isClaimed){
            uint256 totalAllocation = payAmount[_user] * tokenPerUSDT * 10**Decimals(token).decimals() / ( 10**Decimals(tokenPayment).decimals() * denominator );
            amount = _vestingSchedule(totalAllocation, block.timestamp);
        }else{
            amount = 0;
        }
        return amount - released(_user);
    }

    function release() external {
        require(isClaimed, "IDO: IS_CLAIMED_WRONG");
        uint256 amount = releasable(msg.sender);
        require(amount > 0, "IDO: AMOUNT=0");
        tokenReleased[msg.sender] += amount;
        emit TokenReleased(msg.sender, amount, block.timestamp);
        IERC20(token).safeTransfer(msg.sender, amount);
    }

    function _vestingSchedule(uint256 totalAllocation, uint256 timestamp) internal view returns(uint256){
        if(timestamp < startRelease){
            return 0;
        } else if (timestamp > (startRelease + cliff + vesting)){
            return totalAllocation;
        } else {
            uint256 tokenTge = totalAllocation * tge / 100;
            uint256 tokenVesting = 0;
            if(timestamp > (startRelease + cliff)){
                tokenVesting = (totalAllocation - tokenTge) * (timestamp - startRelease - cliff) / vesting;
            }
            return tokenTge + tokenVesting;
        }
    }   

    function getMessageHash(
        address user,
        uint256 _tier
    ) public view returns (bytes32) {
         return
            keccak256(
                abi.encodePacked(
                    user,
                    address(this),
                    _tier
                )
            );
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @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() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(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");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @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 Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    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'
        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));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

pragma solidity ^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 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) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.2) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     *
     * _Available since v4.7._
     */
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     *
     * _Available since v4.7._
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     *
     * _Available since v4.7._
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proofLen - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            require(proofPos == proofLen, "MerkleProof: invalid multiproof");
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proofLen - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            require(proofPos == proofLen, "MerkleProof: invalid multiproof");
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"},{"internalType":"uint256","name":"_start","type":"uint256"},{"internalType":"uint256","name":"_end","type":"uint256"},{"internalType":"address","name":"_tokenPayment","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"total","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"Buy","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"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"admin","type":"address"},{"indexed":false,"internalType":"bool","name":"status","type":"bool"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"SetAdmin","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"status","type":"bool"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"SetClaim","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"denominator","type":"uint256"}],"name":"SetDenominator","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"merkleRoot","type":"bytes32"}],"name":"SetMerkleRoot","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"SetPrice","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"SetTime","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"SetToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"tokenPayment","type":"address"}],"name":"SetTokenPayment","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"startRelease","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"cliff","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"vesting","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tge","type":"uint256"}],"name":"SetVesting","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"blockTime","type":"uint256"}],"name":"TokenReleased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"admin","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"},{"internalType":"uint256","name":"_tier","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"buy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cliff","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"denominator","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"_tier","type":"uint256"}],"name":"getMessageHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"payAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"releasable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"release","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"released","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_admin","type":"address"},{"internalType":"bool","name":"_status","type":"bool"}],"name":"setAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"status","type":"bool"}],"name":"setClaim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_denominator","type":"uint256"}],"name":"setDenominator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"name":"setMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_price","type":"uint256"}],"name":"setPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tier","type":"uint256"},{"internalType":"uint256","name":"_cap","type":"uint256"},{"internalType":"uint256","name":"_purchaseLimit","type":"uint256"}],"name":"setTier","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_start","type":"uint256"},{"internalType":"uint256","name":"_end","type":"uint256"}],"name":"setTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"setToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenPayment","type":"address"}],"name":"setTokenPayment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_startRelease","type":"uint256"},{"internalType":"uint256","name":"_cliff","type":"uint256"},{"internalType":"uint256","name":"_vesting","type":"uint256"},{"internalType":"uint256","name":"_tge","type":"uint256"}],"name":"setVesting","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startRelease","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"startTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tge","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tier","outputs":[{"internalType":"uint256","name":"cap","type":"uint256"},{"internalType":"uint256","name":"sold","type":"uint256"},{"internalType":"uint256","name":"purchaseLimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenPayment","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenPerUSDT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"total","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":"bytes","name":"","type":"bytes"}],"name":"usedSignatures","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"},{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"_tier","type":"uint256"}],"name":"verify","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vesting","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawEther","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

608060405261271060045560446005553480156200001c57600080fd5b506040516200256e3803806200256e8339810160408190526200003f91620003ac565b6200004a336200035c565b6001938455600692909255600755600380546001600160a01b0319166001600160a01b039092169190911781556040805160608082018352640254a47a8082526000602080840182815263088601c0858701908152978352600e80835294517fa7c5ba7114a813b50159add3a36832908dc83db71d0b9a24c2ad0f83be95820755517fa7c5ba7114a813b50159add3a36832908dc83db71d0b9a24c2ad0f83be9582085595517fa7c5ba7114a813b50159add3a36832908dc83db71d0b9a24c2ad0f83be9582095583518083018552640255b723008152808701828152630cfe6a808287019081526002845285895291517f9adb202b1492743bc00c81d33cdc6423fa8c79109027eb6a845391e8fc1f048155517f9adb202b1492743bc00c81d33cdc6423fa8c79109027eb6a845391e8fc1f048255517f9adb202b1492743bc00c81d33cdc6423fa8c79109027eb6a845391e8fc1f0483558351808301855264037eaa6c80815280870182815263178b38c082870190815296835284885290517fe0283e559c29e31ee7f56467acc9dd307779c843a883aeeb3bf5c6128c90814455517fe0283e559c29e31ee7f56467acc9dd307779c843a883aeeb3bf5c6128c9081455593517fe0283e559c29e31ee7f56467acc9dd307779c843a883aeeb3bf5c6128c90814655825180820184526406fc60b500815280860185815263226452408286019081526004875284885291517fa1d6913cd9e08c872be3e7525cca82e4fc0fc298a783f19022be725b19be685a55517fa1d6913cd9e08c872be3e7525cca82e4fc0fc298a783f19022be725b19be685b55517fa1d6913cd9e08c872be3e7525cca82e4fc0fc298a783f19022be725b19be685c5582519081018352640826ff3d8081528085018481526332e701809382019384526005909452935291517fb9bec7e2561f624fe753ff070f1599b306cbf59fafd4e8d5a8184a1ea1841bce55517fb9bec7e2561f624fe753ff070f1599b306cbf59fafd4e8d5a8184a1ea1841bcf55517fb9bec7e2561f624fe753ff070f1599b306cbf59fafd4e8d5a8184a1ea1841bd055620003fd565b600080546001600160a01b038381166001600160a01b0319831681178455604051919092169283917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e09190a35050565b60008060008060808587031215620003c357600080fd5b845160208601516040870151606088015192965090945092506001600160a01b0381168114620003f257600080fd5b939692955090935050565b612161806200040d6000396000f3fe6080604052600436106102295760003560e01c806378e9792511610123578063a0355eca116100ab578063de10a6361161006f578063de10a63614610669578063e949580e14610689578063f2fde38b146106c4578063fc0c546a146106e4578063fe29374b1461070457600080fd5b8063a0355eca146105d3578063a3f8eace146105f3578063a4f3a7c714610613578063a7497fa514610633578063c1e3425f1461064957600080fd5b80638da5cb5b116100f25780638da5cb5b1461051557806391b7f5ed1461054757806396ce0795146105675780639852595c1461057d5780639e281a98146105b357600080fd5b806378e97925146104aa5780637cb64759146104c0578063836a0187146104e057806386d1a69f1461050057600080fd5b80633bed33ce116101b157806363a846f81161017557806363a846f8146103d85780636c56a3f1146104085780636cec0ceb1461041e5780636dda34db1461043e578063715018a61461049557600080fd5b80633bed33ce1461034857806344c63eec146103685780634b0bddd21461037e578063512c91df1461039e57806357c9ca14146103be57600080fd5b8063211418ab116101f8578063211418ab146102c65780632ce71832146102e65780632ddbd13a146103065780632eb4a7ab1461031c5780633197cbb61461033257600080fd5b806304b38ce0146102355780631355ab6f1461026a57806313d033c01461028e578063144fa6d7146102a457600080fd5b3661023057005b600080fd5b34801561024157600080fd5b50610255610250366004611b87565b610731565b60405190151581526020015b60405180910390f35b34801561027657600080fd5b5061028060045481565b604051908152602001610261565b34801561029a57600080fd5b50610280600b5481565b3480156102b057600080fd5b506102c46102bf366004611bde565b610788565b005b3480156102d257600080fd5b506102c46102e1366004611c07565b6107ea565b3480156102f257600080fd5b506102c4610301366004611c24565b610837565b34801561031257600080fd5b5061028060085481565b34801561032857600080fd5b5061028060015481565b34801561033e57600080fd5b5061028060075481565b34801561035457600080fd5b506102c4610363366004611c56565b6108e3565b34801561037457600080fd5b50610280600c5481565b34801561038a57600080fd5b506102c4610399366004611c6f565b61099c565b3480156103aa57600080fd5b506102806103b9366004611ca6565b610a0f565b3480156103ca57600080fd5b506009546102559060ff1681565b3480156103e457600080fd5b506102556103f3366004611bde565b60116020526000908152604090205460ff1681565b34801561041457600080fd5b50610280600a5481565b34801561042a57600080fd5b506102c4610439366004611c56565b610a5c565b34801561044a57600080fd5b5061047a610459366004611c56565b600e6020526000908152604090208054600182015460029092015490919083565b60408051938452602084019290925290820152606001610261565b3480156104a157600080fd5b506102c4610a99565b3480156104b657600080fd5b5061028060065481565b3480156104cc57600080fd5b506102c46104db366004611c56565b610aad565b3480156104ec57600080fd5b506102c46104fb366004611cd0565b610aea565b34801561050c57600080fd5b506102c4610b0a565b34801561052157600080fd5b506000546001600160a01b03165b6040516001600160a01b039091168152602001610261565b34801561055357600080fd5b506102c4610562366004611c56565b610c1e565b34801561057357600080fd5b5061028060055481565b34801561058957600080fd5b50610280610598366004611bde565b6001600160a01b031660009081526010602052604090205490565b3480156105bf57600080fd5b506102c46105ce366004611ca6565b610c60565b3480156105df57600080fd5b506102c46105ee366004611cfc565b610c9e565b3480156105ff57600080fd5b5061028061060e366004611bde565b610cf0565b34801561061f57600080fd5b5060035461052f906001600160a01b031681565b34801561063f57600080fd5b50610280600d5481565b34801561065557600080fd5b506102c4610664366004611bde565b610e85565b34801561067557600080fd5b506102c4610684366004611d1e565b610edb565b34801561069557600080fd5b506102556106a4366004611db9565b805160208183018101805160128252928201919093012091525460ff1681565b3480156106d057600080fd5b506102c46106df366004611bde565b6112bd565b3480156106f057600080fd5b5060025461052f906001600160a01b031681565b34801561071057600080fd5b5061028061071f366004611bde565b600f6020526000908152604090205481565b6040516001600160601b0319606084901b166020820152603481018290526000908190605401604051602081830303815290604052805190602001209050600061077e8660015484611333565b9695505050505050565b610790611349565b600280546001600160a01b0319166001600160a01b038316908117909155604080519182524260208301527f720764556647dd167f4229d6a4255ac86018e302a50fc29dd67a70edb7b314d091015b60405180910390a150565b6107f2611349565b6009805460ff1916821515908117909155604080519182524260208301527e26d2f906aebd2c132a38eeb161cb082dd7c18e0d1f94a415ac7eaaac487ec291016107df565b61083f611349565b60648111156108815760405162461bcd60e51b81526020600482015260096024820152685447455f57524f4e4760b81b60448201526064015b60405180910390fd5b600a849055600b839055600c829055600d8190556040805185815260208101859052908101839052606081018290527f2511b3b23ef5d07ba6890deffad20517857dbb7156df50a8b82c5fdae65ca9499060800160405180910390a150505050565b6108eb611349565b60075442101561090d5760405162461bcd60e51b815260040161087890611e4e565b604051600090339083908381818185875af1925050503d806000811461094f576040519150601f19603f3d011682016040523d82523d6000602084013e610954565b606091505b50509050806109985760405162461bcd60e51b815260206004820152601060248201526f2a3930b739b332b9103330b4b632b21760811b6044820152606401610878565b5050565b6109a4611349565b6001600160a01b038216600081815260116020908152604091829020805460ff191685151590811790915582519384529083015242908201527fb2af021da0b83f71009939aa00ceeee22377a547c3ee31497a73122ea42e3864906060015b60405180910390a15050565b6040516001600160601b0319606084811b8216602084015230901b166034820152604881018290526000906068016040516020818303038152906040528051906020012090505b92915050565b610a64611349565b60058190556040518181527f4082bc252f347d223f4e804c3c4e90818ad544b959ffa807149351ad158bf016906020016107df565b610aa1611349565b610aab60006113a3565b565b610ab5611349565b60018190556040518181527f914960aef5e033ce5cae8a7992d4b7a6f0f9741227b66acb67c605b7019f8a46906020016107df565b610af2611349565b6000928352600e602052604090922090815560020155565b60095460ff16610b545760405162461bcd60e51b815260206004820152601560248201527449444f3a2049535f434c41494d45445f57524f4e4760581b6044820152606401610878565b6000610b5f33610cf0565b905060008111610ba15760405162461bcd60e51b815260206004820152600d60248201526c049444f3a20414d4f554e543d3609c1b6044820152606401610878565b3360009081526010602052604081208054839290610bc0908490611eb6565b90915550506040805133815260208101839052428183015290517f881a2e1bf4f161e12580159a60513a536736d190d8f1264819ef4f1b260921d09181900360600190a1600254610c1b906001600160a01b031633836113f3565b50565b610c26611349565b6004819055604080518281524260208201527ff9317dc3bc6dda0e00e43855c2c30847aeafb8dcea9d2ce86e9ce7a83d549f0191016107df565b610c68611349565b600754421015610c8a5760405162461bcd60e51b815260040161087890611e4e565b6109986001600160a01b03831633836113f3565b610ca6611349565b60068290556007819055604080518381526020810183905242918101919091527f19bd8abf08bba14742990b0fc9de97404cb8ca4d3aea41b2b738c2521b36a04b90606001610a03565b600954600090819060ff1615610e57576005546003546040805163313ce56760e01b81529051600093926001600160a01b03169163313ce5679160048083019260209291908290030181865afa158015610d4e573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610d729190611ece565b610d7d90600a611fd5565b610d879190611fe4565b600260009054906101000a90046001600160a01b03166001600160a01b031663313ce5676040518163ffffffff1660e01b8152600401602060405180830381865afa158015610dda573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610dfe9190611ece565b610e0990600a611fd5565b6004546001600160a01b0387166000908152600f6020526040902054610e2f9190611fe4565b610e399190611fe4565b610e439190612003565b9050610e4f814261145b565b915050610e5b565b5060005b6001600160a01b038316600090815260106020526040902054610e7e9082612025565b9392505050565b610e8d611349565b600380546001600160a01b0319166001600160a01b0383169081179091556040519081527f3e04399dab2fda81ba98a50e79057d60214788a3b57b4a3c99ee854cd6cea7c4906020016107df565b336000908152600f602052604090205415610f385760405162461bcd60e51b815260206004820152601960248201527f49444f3a2050555243484153455f4c494d49545f57524f4e47000000000000006044820152606401610878565b60128282604051610f4a92919061203c565b9081526040519081900360200190205460ff1615610fa15760405162461bcd60e51b815260206004820152601460248201527324a2279d1039b4b3b730ba3ab932903ab9b2b21760611b6044820152606401610878565b60065442118015610fb3575060075442105b610ff15760405162461bcd60e51b815260206004820152600f60248201526e49444f3a2054494d455f57524f4e4760881b6044820152606401610878565b6040516001600160601b03193360601b166020820152603481018490526000906054016040516020818303038152906040528051906020012090506110398560015483611333565b61107c5760405162461bcd60e51b815260206004820152601460248201527324b73b30b634b21026b2b935b63290383937b7b360611b6044820152606401610878565b60006110883386610a0f565b7f19457468657265756d205369676e6564204d6573736167653a0a3332000000006000908152601c829052603c812091925050601160006110ff8388888080601f01602080910402602001604051908101604052809392919081815260200183838082843760009201919091525061152292505050565b6001600160a01b0316815260208101919091526040016000205460ff166111615760405162461bcd60e51b815260206004820152601660248201527549444f3a20696e76616c6964207369676e617475726560501b6044820152606401610878565b60016012868660405161117592919061203c565b9081526040805160209281900383019020805460ff1916931515939093179092556000888152600e9091522060028101548154600192909201549091906111bd908390611eb6565b11156111fa5760405162461bcd60e51b815260206004820152600c60248201526b414d4f554e545f57524f4e4760a01b6044820152606401610878565b6000878152600e60205260408120600101805483929061121b908490611eb6565b9091555050600354611238906001600160a01b0316333084611546565b336000908152600f602052604081208054839290611257908490611eb6565b90915550506000878152600e60209081526040918290206001015482513381529182018490528183015242606082015290517fbeae048c6d270d9469f86cf6e8fedda3c60ad770f16c24c9fc131c8e9a09101d9181900360800190a15050505050505050565b6112c5611349565b6001600160a01b03811661132a5760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b6064820152608401610878565b610c1b816113a3565b6000826113408584611584565b14949350505050565b6000546001600160a01b03163314610aab5760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610878565b600080546001600160a01b038381166001600160a01b0319831681178455604051919092169283917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e09190a35050565b6040516001600160a01b03831660248201526044810182905261145690849063a9059cbb60e01b906064015b60408051601f198184030181529190526020810180516001600160e01b03166001600160e01b0319909316929092179091526115c9565b505050565b6000600a5482101561146f57506000610a56565b600c54600b54600a546114829190611eb6565b61148c9190611eb6565b82111561149a575081610a56565b60006064600d54856114ac9190611fe4565b6114b69190612003565b90506000600b54600a546114ca9190611eb6565b84111561150f57600c54600b54600a546114e49087612025565b6114ee9190612025565b6114f88488612025565b6115029190611fe4565b61150c9190612003565b90505b6115198183611eb6565b92505050610a56565b6000806000611531858561169e565b9150915061153e816116e4565b509392505050565b6040516001600160a01b038085166024830152831660448201526064810182905261157e9085906323b872dd60e01b9060840161141f565b50505050565b600081815b845181101561153e576115b5828683815181106115a8576115a861204c565b6020026020010151611832565b9150806115c181612062565b915050611589565b600061161e826040518060400160405280602081526020017f5361666545524332303a206c6f772d6c6576656c2063616c6c206661696c6564815250856001600160a01b031661185e9092919063ffffffff16565b905080516000148061163f57508080602001905181019061163f919061207d565b6114565760405162461bcd60e51b815260206004820152602a60248201527f5361666545524332303a204552433230206f7065726174696f6e20646964206e6044820152691bdd081cdd58d8d9595960b21b6064820152608401610878565b6000808251604114156116d55760208301516040840151606085015160001a6116c987828585611875565b945094505050506116dd565b506000905060025b9250929050565b60008160048111156116f8576116f861209a565b14156117015750565b60018160048111156117155761171561209a565b14156117635760405162461bcd60e51b815260206004820152601860248201527f45434453413a20696e76616c6964207369676e617475726500000000000000006044820152606401610878565b60028160048111156117775761177761209a565b14156117c55760405162461bcd60e51b815260206004820152601f60248201527f45434453413a20696e76616c6964207369676e6174757265206c656e677468006044820152606401610878565b60038160048111156117d9576117d961209a565b1415610c1b5760405162461bcd60e51b815260206004820152602260248201527f45434453413a20696e76616c6964207369676e6174757265202773272076616c604482015261756560f01b6064820152608401610878565b600081831061184e576000828152602084905260409020610e7e565b5060009182526020526040902090565b606061186d8484600085611939565b949350505050565b6000807f7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a08311156118ac5750600090506003611930565b6040805160008082526020820180845289905260ff881692820192909252606081018690526080810185905260019060a0016020604051602081039080840390855afa158015611900573d6000803e3d6000fd5b5050604051601f1901519150506001600160a01b03811661192957600060019250925050611930565b9150600090505b94509492505050565b60608247101561199a5760405162461bcd60e51b815260206004820152602660248201527f416464726573733a20696e73756666696369656e742062616c616e636520666f6044820152651c8818d85b1b60d21b6064820152608401610878565b600080866001600160a01b031685876040516119b691906120dc565b60006040518083038185875af1925050503d80600081146119f3576040519150601f19603f3d011682016040523d82523d6000602084013e6119f8565b606091505b5091509150611a0987838387611a14565b979650505050505050565b60608315611a80578251611a79576001600160a01b0385163b611a795760405162461bcd60e51b815260206004820152601d60248201527f416464726573733a2063616c6c20746f206e6f6e2d636f6e74726163740000006044820152606401610878565b508161186d565b61186d8383815115611a955781518083602001fd5b8060405162461bcd60e51b815260040161087891906120f8565b634e487b7160e01b600052604160045260246000fd5b604051601f8201601f1916810167ffffffffffffffff81118282101715611aee57611aee611aaf565b604052919050565b600082601f830112611b0757600080fd5b8135602067ffffffffffffffff821115611b2357611b23611aaf565b8160051b611b32828201611ac5565b9283528481018201928281019087851115611b4c57600080fd5b83870192505b84831015611a0957823582529183019190830190611b52565b80356001600160a01b0381168114611b8257600080fd5b919050565b600080600060608486031215611b9c57600080fd5b833567ffffffffffffffff811115611bb357600080fd5b611bbf86828701611af6565b935050611bce60208501611b6b565b9150604084013590509250925092565b600060208284031215611bf057600080fd5b610e7e82611b6b565b8015158114610c1b57600080fd5b600060208284031215611c1957600080fd5b8135610e7e81611bf9565b60008060008060808587031215611c3a57600080fd5b5050823594602084013594506040840135936060013592509050565b600060208284031215611c6857600080fd5b5035919050565b60008060408385031215611c8257600080fd5b611c8b83611b6b565b91506020830135611c9b81611bf9565b809150509250929050565b60008060408385031215611cb957600080fd5b611cc283611b6b565b946020939093013593505050565b600080600060608486031215611ce557600080fd5b505081359360208301359350604090920135919050565b60008060408385031215611d0f57600080fd5b50508035926020909101359150565b60008060008060608587031215611d3457600080fd5b843567ffffffffffffffff80821115611d4c57600080fd5b611d5888838901611af6565b9550602087013594506040870135915080821115611d7557600080fd5b818701915087601f830112611d8957600080fd5b813581811115611d9857600080fd5b886020828501011115611daa57600080fd5b95989497505060200194505050565b60006020808385031215611dcc57600080fd5b823567ffffffffffffffff80821115611de457600080fd5b818501915085601f830112611df857600080fd5b813581811115611e0a57611e0a611aaf565b611e1c601f8201601f19168501611ac5565b91508082528684828501011115611e3257600080fd5b8084840185840137600090820190930192909252509392505050565b60208082526032908201527f546865206f776e65722063616e206f6e6c7920776974686472617720455448206040820152716166746572207468652049444f20656e647360701b606082015260800190565b634e487b7160e01b600052601160045260246000fd5b60008219821115611ec957611ec9611ea0565b500190565b600060208284031215611ee057600080fd5b815160ff81168114610e7e57600080fd5b600181815b80851115611f2c578160001904821115611f1257611f12611ea0565b80851615611f1f57918102915b93841c9390800290611ef6565b509250929050565b600082611f4357506001610a56565b81611f5057506000610a56565b8160018114611f665760028114611f7057611f8c565b6001915050610a56565b60ff841115611f8157611f81611ea0565b50506001821b610a56565b5060208310610133831016604e8410600b8410161715611faf575081810a610a56565b611fb98383611ef1565b8060001904821115611fcd57611fcd611ea0565b029392505050565b6000610e7e60ff841683611f34565b6000816000190483118215151615611ffe57611ffe611ea0565b500290565b60008261202057634e487b7160e01b600052601260045260246000fd5b500490565b60008282101561203757612037611ea0565b500390565b8183823760009101908152919050565b634e487b7160e01b600052603260045260246000fd5b600060001982141561207657612076611ea0565b5060010190565b60006020828403121561208f57600080fd5b8151610e7e81611bf9565b634e487b7160e01b600052602160045260246000fd5b60005b838110156120cb5781810151838201526020016120b3565b8381111561157e5750506000910152565b600082516120ee8184602087016120b0565b9190910192915050565b60208152600082518060208401526121178160408501602087016120b0565b601f01601f1916919091016040019291505056fea2646970667358221220e9e43f06749006cc9cd354dbc07e3ebc64cafb5045e1ad5bdbc35aa43c4c182d64736f6c634300080c003331296c40449934907f6760d70eedb34c229fd2522220cd1c60ef665a1e13d85100000000000000000000000000000000000000000000000000000000661e846000000000000000000000000000000000000000000000000000000000661fd5e0000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7

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

31296c40449934907f6760d70eedb34c229fd2522220cd1c60ef665a1e13d85100000000000000000000000000000000000000000000000000000000661e846000000000000000000000000000000000000000000000000000000000661fd5e0000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7

-----Decoded View---------------
Arg [0] : _merkleRoot (bytes32): 0x31296c40449934907f6760d70eedb34c229fd2522220cd1c60ef665a1e13d851
Arg [1] : _start (uint256): 1713276000
Arg [2] : _end (uint256): 1713362400
Arg [3] : _tokenPayment (address): 0xdAC17F958D2ee523a2206206994597C13D831ec7

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 31296c40449934907f6760d70eedb34c229fd2522220cd1c60ef665a1e13d851
Arg [1] : 00000000000000000000000000000000000000000000000000000000661e8460
Arg [2] : 00000000000000000000000000000000000000000000000000000000661fd5e0
Arg [3] : 000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7