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0x3a9c8Fcef5e2B0253b0cC4730a91b6b472f419f1
 

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$0.00

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Method
Block
From
To
Claim Tokens233710222025-09-15 21:00:35172 days ago1757970035IN
0x3a9c8Fce...472f419f1
0 ETH0.00004610.85529939
Renounce Ownersh...233710202025-09-15 21:00:11172 days ago1757970011IN
0x3a9c8Fce...472f419f1
0 ETH0.000012150.51608529
Deposit ETH217902532025-02-06 21:48:47393 days ago1738878527IN
0x3a9c8Fce...472f419f1
0.015 ETH0.000192362.00611413
Deposit ETH217833262025-02-05 22:37:11394 days ago1738795031IN
0x3a9c8Fce...472f419f1
0.00075 ETH0.000254851.95910037
Deposit ETH217807032025-02-05 13:51:11394 days ago1738763471IN
0x3a9c8Fce...472f419f1
0.024 ETH0.000290462.23281829
Deposit ETH217767562025-02-05 0:36:47395 days ago1738715807IN
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0.005 ETH0.000292912.25169946
Deposit ETH217700592025-02-04 2:07:47396 days ago1738634867IN
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0.002 ETH0.000569784.37998869
Deposit ETH217700502025-02-04 2:05:59396 days ago1738634759IN
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0.001 ETH0.000555424.26960589
Deposit ETH217698972025-02-04 1:35:23396 days ago1738632923IN
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0.00136 ETH0.000338833.53361507
Deposit ETH217698472025-02-04 1:25:23396 days ago1738632323IN
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0.001 ETH0.000374843.9092103
Deposit ETH217684562025-02-03 20:45:59396 days ago1738615559IN
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0.26 ETH0.000871956.70279333
Deposit ETH217679872025-02-03 19:11:47396 days ago1738609907IN
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0.011 ETH0.0011620312.11868515
Deposit ETH217669882025-02-03 15:51:11396 days ago1738597871IN
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0.005 ETH0.006236647.94140769
Deposit ETH217622982025-02-03 0:06:47397 days ago1738541207IN
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0.00024 ETH0.0014417211.0827057
Deposit ETH217573382025-02-02 7:28:23397 days ago1738481303IN
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0.0009 ETH0.000265932.0442727
Deposit ETH217560632025-02-02 3:10:59397 days ago1738465859IN
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0.00355 ETH0.000386622.97206096
Deposit ETH217539832025-02-01 20:13:23398 days ago1738440803IN
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0.004 ETH0.000529275.51967618
Deposit ETH217538972025-02-01 19:55:59398 days ago1738439759IN
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0.007 ETH0.000571314.39174914
Deposit ETH217524632025-02-01 15:07:23398 days ago1738422443IN
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0.056 ETH0.000519843.9961319
Deposit Tokens217515352025-02-01 12:01:23398 days ago1738411283IN
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0 ETH0.000384162.81886133
Deposit ETH217504672025-02-01 8:26:59398 days ago1738398419IN
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0.001 ETH0.000226262.35970664
Deposit ETH217496842025-02-01 5:48:59398 days ago1738388939IN
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0.0007 ETH0.000269542.81106935
Deposit ETH217492262025-02-01 4:16:47398 days ago1738383407IN
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0.03 ETH0.00019711.51515168
Deposit ETH217491212025-02-01 3:55:47398 days ago1738382147IN
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0.13 ETH0.000205521.57991594
Deposit ETH217484532025-02-01 1:41:47399 days ago1738374107IN
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0.001 ETH0.000247591.90325134
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Latest 25 internal transactions (View All)

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Parent Transaction Hash Method Block
From
To
Transfer217902532025-02-06 21:48:47393 days ago1738878527
0x3a9c8Fce...472f419f1
0.015 ETH
Transfer217833262025-02-05 22:37:11394 days ago1738795031
0x3a9c8Fce...472f419f1
0.00075 ETH
Transfer217807032025-02-05 13:51:11394 days ago1738763471
0x3a9c8Fce...472f419f1
0.024 ETH
Transfer217767562025-02-05 0:36:47395 days ago1738715807
0x3a9c8Fce...472f419f1
0.005 ETH
Transfer217700592025-02-04 2:07:47396 days ago1738634867
0x3a9c8Fce...472f419f1
0.002 ETH
Transfer217700502025-02-04 2:05:59396 days ago1738634759
0x3a9c8Fce...472f419f1
0.001 ETH
Transfer217698972025-02-04 1:35:23396 days ago1738632923
0x3a9c8Fce...472f419f1
0.00136 ETH
Transfer217698472025-02-04 1:25:23396 days ago1738632323
0x3a9c8Fce...472f419f1
0.001 ETH
Transfer217684562025-02-03 20:45:59396 days ago1738615559
0x3a9c8Fce...472f419f1
0.26 ETH
Transfer217679872025-02-03 19:11:47396 days ago1738609907
0x3a9c8Fce...472f419f1
0.011 ETH
Transfer217669882025-02-03 15:51:11396 days ago1738597871
0x3a9c8Fce...472f419f1
0.005 ETH
Transfer217622982025-02-03 0:06:47397 days ago1738541207
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0.00024 ETH
Transfer217573382025-02-02 7:28:23397 days ago1738481303
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0.0009 ETH
Transfer217560632025-02-02 3:10:59397 days ago1738465859
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0.00355 ETH
Transfer217539832025-02-01 20:13:23398 days ago1738440803
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0.004 ETH
Transfer217538972025-02-01 19:55:59398 days ago1738439759
0x3a9c8Fce...472f419f1
0.007 ETH
Transfer217524632025-02-01 15:07:23398 days ago1738422443
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0.056 ETH
Transfer217504672025-02-01 8:26:59398 days ago1738398419
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0.001 ETH
Transfer217496842025-02-01 5:48:59398 days ago1738388939
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0.0007 ETH
Transfer217492262025-02-01 4:16:47398 days ago1738383407
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0.03 ETH
Transfer217491212025-02-01 3:55:47398 days ago1738382147
0x3a9c8Fce...472f419f1
0.13 ETH
Transfer217484532025-02-01 1:41:47399 days ago1738374107
0x3a9c8Fce...472f419f1
0.001 ETH
Transfer217479182025-01-31 23:53:47399 days ago1738367627
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0.0115 ETH
Transfer217475122025-01-31 22:32:11399 days ago1738362731
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0.0035 ETH
Transfer217471352025-01-31 21:16:23399 days ago1738358183
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0.33014522 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
LuckHunterPreSale

Compiler Version
v0.8.25+commit.b61c2a91

Optimization Enabled:
Yes with 200 runs

Other Settings:
paris EvmVersion
// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Pausable.sol";
import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

contract LuckHunterPreSale is Ownable, Pausable, ReentrancyGuard{
    
    using SafeERC20 for IERC20;
    uint256 public totalRaised;
    uint8 public currentRound = 0;

    uint256 public cliffDuration;
    uint256 public vestingStartTime;
    uint256 public vestingDuration;
    uint256 public vestingInterval;
    uint256 public cliffPercentage;

    IERC20 public vestingToken;

    struct Round {
        uint256 maxDepositToken;
        uint256 amountRaised;
        uint256 price;
        uint256 vestedTokens;
        uint256 tokensSold;
    }

    mapping(address => uint256) public tokenRaised;
    AggregatorV3Interface internal EthUSDDataFeed;
    address public usdc = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
    address public usdt = 0xdAC17F958D2ee523a2206206994597C13D831ec7;

    struct User {
        uint256 investedAmount;
        uint256 totalVestedAmounts;
        uint256 claimedTokens;
    }

    struct RoundTime {
        uint256 start;
        uint256 end;
    }

    Round[10] public rounds;
    mapping(address => User) public userDetails;
    mapping(uint256 => RoundTime) public roundTime;

    event TokensDeposited(address indexed user, uint256 amount);
    event ETHDeposited(address indexed user, uint256 amount);
    event TokensClaimed(address indexed user, uint256 amount);
    event TokenAdded(address indexed token, uint256 amount);
    event TokenWithdraw(address indexed token, uint256 amount);
    event RoundTimeUpdated(uint256 indexed round, uint256 start, uint256 end);
    event BoughtWithWert(address user, uint256 amount);


    constructor(
        uint256 _vestingDuration,
        uint256 _vestingInterval,
        uint256 _cliffDuration,
        uint256 _vestingStartTime,
        uint256 _cliffPercentage,
        address _owner
    ) Ownable(_owner) {
        
        vestingToken = IERC20(0x2b838A5DAdE021BE2A50a96897Ae350b9a93fF63);
        vestingDuration = _vestingDuration;
        cliffDuration = _cliffDuration;
        vestingStartTime = _vestingStartTime;
        vestingInterval = _vestingInterval;
        cliffPercentage = _cliffPercentage;

        EthUSDDataFeed = AggregatorV3Interface(
            0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419
        );

        rounds[0] = Round(250000 * 10**6, 0, 1000, 250000000 * 10**18, 0);
        rounds[1] = Round(350000 * 10**6, 0, 1120, 312500000 * 10**18, 0);
        rounds[2] = Round(450000 * 10**6, 0, 1240, 362903226 * 10**18, 0); 
        rounds[3] = Round(550000 * 10**6, 0, 1380, 398550725 * 10**18, 0); 
        rounds[4] = Round(650000 * 10**6, 0, 1520, 427631579 * 10**18, 0); 
        rounds[5] = Round(750000 * 10**6, 0, 1680, 446428571 * 10**18, 0);
        rounds[6] = Round(850000 * 10**6, 0, 1860, 456989247 * 10**18, 0); 
        rounds[7] = Round(950000 * 10**6, 0, 2060, 461165049 * 10**18, 0); 
        rounds[8] = Round(1050000 * 10**6, 0, 2280, 460526316 * 10**18, 0);
        rounds[9] = Round(1150000 * 10**6, 0, 2520, 456349206 * 10**18, 0);
    }

    function updateVesting(
        uint256 _vestingDuration,
        uint256 _vestingInterval,
        uint256 _cliffDuration,
        uint256 _vestingStartTime,
        uint256 _cliffPercentage
        ) external onlyOwner {
        require(
            vestingStartTime > block.timestamp,
            "Vesting has already started"
        );

        vestingDuration = _vestingDuration;
        cliffDuration = _cliffDuration;
        vestingStartTime = _vestingStartTime;
        vestingInterval = _vestingInterval;
        cliffPercentage = _cliffPercentage;
    }

    function updateRoundTimes(
        uint8[] calldata _rounds,
        uint256[] calldata _starts,
        uint256[] calldata _ends
    ) external onlyOwner {
        require(
            _rounds.length == _starts.length && _starts.length == _ends.length,
            "Array lengths must match"
        );

        for (uint256 i = 0; i < _rounds.length; i++) {
            uint8 round = _rounds[i];
            uint256 start = _starts[i];
            uint256 end = _ends[i];

            require(round < rounds.length, "Invalid round");
            require(start < end, "Start time must be less than end time");

            roundTime[round] = RoundTime(start, end);
            emit RoundTimeUpdated(round, start, end);
        }
    }

    function nextRound() public onlyOwner {
        if (block.timestamp < roundTime[currentRound].end) {
            revert("Current Round Time is not ended");
        } else {
            currentRound += 1;
        }
    }

    function depositETH() public payable whenNotPaused nonReentrant {
        require(
            block.timestamp >= roundTime[currentRound].start,
            "Sale not started yet"
        );
        require(block.timestamp <= roundTime[currentRound].end, "Sale Ended");
        require(
            currentRound < rounds.length,
            "All presale rounds are completed"
        );
        uint256 ethToUsdPrice = getPriceOfETH();
        uint256 amount = (msg.value * ethToUsdPrice);

        uint256 amountInvestedByUser = (msg.value * ethToUsdPrice * 10e5) /
            10**18;
        require(amountInvestedByUser > 0, "Insufficient amount sent");

        uint256 tokensToBuy = (amount * 10**6) / (rounds[currentRound].price);

        require(
            amountInvestedByUser + rounds[currentRound].amountRaised <=
                rounds[currentRound].maxDepositToken,
            "Max cap reached for this round"
        );

        payable(owner()).transfer(msg.value);

        rounds[currentRound].tokensSold += tokensToBuy;
        rounds[currentRound].amountRaised += amountInvestedByUser;
        totalRaised += amountInvestedByUser;
        userDetails[msg.sender].investedAmount += amountInvestedByUser;
        userDetails[msg.sender].totalVestedAmounts += tokensToBuy;

        emit ETHDeposited(msg.sender, amountInvestedByUser);
    }

    function getPriceOfETH() public view returns (uint256) {
        (
            ,
            /* uint80 roundID */
            int256 answer, /*uint startedAt*/
            ,
            ,

        ) = /*uint timeStamp*/
            /*uint80 answeredInRound*/
            EthUSDDataFeed.latestRoundData();

        return uint256(answer) / 10**8;
    }

    function depositTokens(uint256 amount, address _depositToken)
        public
        whenNotPaused
        nonReentrant
    {
        require(
            _depositToken == usdt || _depositToken == usdc,
            "We can only use USDT or USDC for trade"
        );
        require(
            block.timestamp >= roundTime[currentRound].start,
            "Sale not started yet"
        );
        require(block.timestamp <= roundTime[currentRound].end, "Sale Ended");
        require(
            currentRound < rounds.length,
            "All presale rounds are completed"
        );

        require(amount > 0, "Insufficient amount sent");

        uint256 tokensToBuy = (amount / rounds[currentRound].price) * 10**18;

        require(
            amount + rounds[currentRound].amountRaised <=
                rounds[currentRound].maxDepositToken,
            "Max cap reached for this round"
        );

        IERC20(_depositToken).safeTransferFrom(msg.sender, owner(), amount);

        rounds[currentRound].tokensSold += tokensToBuy;
        rounds[currentRound].amountRaised += amount;
        totalRaised += amount;
        userDetails[msg.sender].investedAmount += amount;
        userDetails[msg.sender].totalVestedAmounts += tokensToBuy;

        tokenRaised[_depositToken] += amount;
        emit TokensDeposited(msg.sender, amount);
    }

    function claimTokens() public whenNotPaused nonReentrant{
        require(
            block.timestamp >= vestingStartTime + cliffDuration,
            "Cliff period not over"
        );
        uint256 claimableTokens = calculateUnlockedToken(msg.sender);
        require(claimableTokens > 0, "No tokens available for claim");

        vestingToken.transfer(msg.sender, claimableTokens);
        userDetails[msg.sender].claimedTokens += claimableTokens;
        emit TokensClaimed(msg.sender, claimableTokens);
    }

    function calculateUnlockedToken(address _wallet)
        public
        view
        returns (uint256)
    {
        uint256 totalVested = userDetails[_wallet].totalVestedAmounts;

        if (block.timestamp < vestingStartTime + cliffDuration) {
            return 0;
        } else if (
            block.timestamp >=
            vestingStartTime + cliffDuration + vestingDuration
        ) {
            return totalVested - userDetails[_wallet].claimedTokens;
        } else {
            uint256 elapsedTime = block.timestamp -
                (vestingStartTime + cliffDuration);
            uint256 vestingPeriods = elapsedTime / vestingInterval;
            uint256 cliffReleaseAmount = (totalVested * cliffPercentage) / 100;
            uint256 totalUnlocked = cliffReleaseAmount +
                ((totalVested - cliffReleaseAmount) *
                    vestingPeriods *
                    vestingInterval) /
                vestingDuration;
            return totalUnlocked - userDetails[_wallet].claimedTokens;
        }
    }

    function buyTokensWert(address user, uint256 amount) external whenNotPaused nonReentrant {
        require(
            block.timestamp >= roundTime[currentRound].start,
            "Sale not started yet"
        );
        require(block.timestamp <= roundTime[currentRound].end, "Sale Ended");
        require(
            currentRound < rounds.length,
            "All presale rounds are completed"
        );

        require(amount > 0, "Insufficient amount sent");

        uint256 tokensToBuy = (amount / rounds[currentRound].price) * 10**18;

        require(
            amount + rounds[currentRound].amountRaised <=
                rounds[currentRound].maxDepositToken,
            "Max cap reached for this round"
        );

        rounds[currentRound].tokensSold += tokensToBuy;
        rounds[currentRound].amountRaised += amount;
        totalRaised += amount;
        userDetails[user].investedAmount += amount;
        userDetails[user].totalVestedAmounts += tokensToBuy;

        emit BoughtWithWert(user, amount);
    }

    function addTokensToPresale(uint256 amount) external onlyOwner {
        vestingToken.transferFrom(msg.sender, address(this), amount);
        emit TokenAdded(address(vestingToken), amount);
    }

    function withdrawTokens(address _token) external onlyOwner {
        uint256 amount = IERC20(_token).balanceOf(address(this));
        IERC20(_token).transfer(msg.sender, amount);
        emit TokenWithdraw(address(_token), amount);
    }

    function pause() external onlyOwner {
        _pause();
    }

    function unpause() external onlyOwner {
        _unpause();
    }
}

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

// solhint-disable-next-line interface-starts-with-i
interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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 v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @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 v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../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 An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, 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);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @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.encodeCall(token.approve, (spender, value));

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

    /**
     * @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);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) 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 FailedInnerCall();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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 v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    bool private _paused;

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

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

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"uint256","name":"_vestingDuration","type":"uint256"},{"internalType":"uint256","name":"_vestingInterval","type":"uint256"},{"internalType":"uint256","name":"_cliffDuration","type":"uint256"},{"internalType":"uint256","name":"_vestingStartTime","type":"uint256"},{"internalType":"uint256","name":"_cliffPercentage","type":"uint256"},{"internalType":"address","name":"_owner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BoughtWithWert","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ETHDeposited","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":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"round","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"start","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"end","type":"uint256"}],"name":"RoundTimeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokensClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokensDeposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"addTokensToPresale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"buyTokensWert","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_wallet","type":"address"}],"name":"calculateUnlockedToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cliffDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"cliffPercentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentRound","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"depositETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"_depositToken","type":"address"}],"name":"depositTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getPriceOfETH","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextRound","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"roundTime","outputs":[{"internalType":"uint256","name":"start","type":"uint256"},{"internalType":"uint256","name":"end","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rounds","outputs":[{"internalType":"uint256","name":"maxDepositToken","type":"uint256"},{"internalType":"uint256","name":"amountRaised","type":"uint256"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"vestedTokens","type":"uint256"},{"internalType":"uint256","name":"tokensSold","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"tokenRaised","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalRaised","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":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8[]","name":"_rounds","type":"uint8[]"},{"internalType":"uint256[]","name":"_starts","type":"uint256[]"},{"internalType":"uint256[]","name":"_ends","type":"uint256[]"}],"name":"updateRoundTimes","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_vestingDuration","type":"uint256"},{"internalType":"uint256","name":"_vestingInterval","type":"uint256"},{"internalType":"uint256","name":"_cliffDuration","type":"uint256"},{"internalType":"uint256","name":"_vestingStartTime","type":"uint256"},{"internalType":"uint256","name":"_cliffPercentage","type":"uint256"}],"name":"updateVesting","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"usdc","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"usdt","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userDetails","outputs":[{"internalType":"uint256","name":"investedAmount","type":"uint256"},{"internalType":"uint256","name":"totalVestedAmounts","type":"uint256"},{"internalType":"uint256","name":"claimedTokens","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vestingDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vestingInterval","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vestingStartTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vestingToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"withdrawTokens","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000000000000000000000000000000000000001da9c000000000000000000000000000000000000000000000000000000000000278d000000000000000000000000000000000000000000000000000000000000278d0000000000000000000000000000000000000000000000000000000000674ba700000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000002f4f8ea3b0194d2ee0e3ec2eb7c0f5a651a09adf

-----Decoded View---------------
Arg [0] : _vestingDuration (uint256): 31104000
Arg [1] : _vestingInterval (uint256): 2592000
Arg [2] : _cliffDuration (uint256): 2592000
Arg [3] : _vestingStartTime (uint256): 1733011200
Arg [4] : _cliffPercentage (uint256): 10
Arg [5] : _owner (address): 0x2F4f8EA3B0194d2EE0E3eC2Eb7C0f5a651a09adf

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000001da9c00
Arg [1] : 0000000000000000000000000000000000000000000000000000000000278d00
Arg [2] : 0000000000000000000000000000000000000000000000000000000000278d00
Arg [3] : 00000000000000000000000000000000000000000000000000000000674ba700
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [5] : 0000000000000000000000002f4f8ea3b0194d2ee0e3ec2eb7c0f5a651a09adf


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