Contract Address Details

0xCa98cD011599523121072c0574b5c97fF565B2dE

Contract Name: GDCrowdsale

Creator: 0x8687d8–47bc82 at 0x58915b–921bb5

Balance: 0

Tokens: Fetching tokens... Error trying to fetch balances.

Transactions: 3 Transactions

Transfers: 4 Transfers

Gas Used: 538,221

Last Balance Update: 15330963

Transactions Token Transfers Internal Transactions Coin Balance History Logs Code Read Contract Write Contract

Contract name:: GDCrowdsale
Optimization enabled: true

Compiler version: v0.8.18+commit.87f61d96
Optimization runs: 1000000

EVM Version: default
Verified at: 2025-03-11T23:50:07.487959Z

Constructor Arguments

0x000000000000000000000000abccefb00528c9c792ac7c46997f0f6ee5dcdddd0000000000000000000000008687d85e907657107323b4b3ad2b814b9647bc820000000000000000000000000000000000000000000000000000000000093a80

Arg [0] (address) : 0xabccefb00528c9c792ac7c46997f0f6ee5dcdddd
Arg [1] (address) : 0x8687d85e907657107323b4b3ad2b814b9647bc82
Arg [2] (uint256) : 604800

contracts/factory/GDCrowdsale.sol

Sol2uml

new

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/utils/math/Math.sol";
error InvalidAddress();
error InvalidAmount();
error InvalidState();
error AlreadyParticipated();
error InsufficientBalance();
error CrowdsaleNotEnded();
error CrowdsaleEnded();
error AlreadyDistributed();
error InvalidDuration();
/**
 * @title GD Token Crowdsale Contract
 * @dev Improved implementation of the GD token crowdsale
 */
contract GDCrowdsale is ReentrancyGuard, Ownable {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;
    struct PurchaseInfo {
        uint256 purchaseTime;
        uint256 ethAmount;
        uint256 tokenAmount;
        uint256 price;
    }
    enum CrowdsaleState { Active, Paused, Ended }
    // Immutable state variables
    IERC20 public immutable saleToken;
    address payable public immutable fundingWallet;
 
 
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@openzeppelin/contracts/access/Ownable.sol

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// SPDX-License-Identifier: MIT
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() {
        _setOwner(_msgSender());
    }
    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }
    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
 
 
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@openzeppelin/contracts/security/ReentrancyGuard.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
 * @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;
    constructor() {
        _status = _NOT_ENTERED;
    }
 
 
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@openzeppelin/contracts/token/ERC20/IERC20.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);
    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);
    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);
    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);
    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
 
 
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@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
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);
}
          
 
 
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@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../IERC20.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;
    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }
    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }
    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
 
 
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@openzeppelin/contracts/utils/Address.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
 
 
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@openzeppelin/contracts/utils/Context.sol

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// SPDX-License-Identifier: MIT
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;
    }
}
          
 
 
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@openzeppelin/contracts/utils/math/Math.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @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 / b + (a % b == 0 ? 0 : 1);
    }
 
 
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@openzeppelin/contracts/utils/math/SafeMath.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }
    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }
    /**
 
 
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Compiler Settings

{"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers","metadata"],"":["ast"]}},"optimizer":{"runs":1000000,"enabled":true},"libraries":{}}

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_saleToken","internalType":"contract IERC20"},{"type":"address","name":"_fundingWallet","internalType":"address payable"},{"type":"uint256","name":"_initialDuration","internalType":"uint256"}]},{"type":"error","name":"AlreadyDistributed","inputs":[]},{"type":"error","name":"AlreadyParticipated","inputs":[]},{"type":"error","name":"CrowdsaleEnded","inputs":[]},{"type":"error","name":"CrowdsaleNotEnded","inputs":[]},{"type":"error","name":"InsufficientBalance","inputs":[]},{"type":"error","name":"InvalidAddress","inputs":[]},{"type":"error","name":"InvalidAmount","inputs":[]},{"type":"error","name":"InvalidDuration","inputs":[]},{"type":"error","name":"InvalidState","inputs":[]},{"type":"event","name":"CrowdsaleDurationUpdated","inputs":[{"type":"uint256","name":"oldDuration","internalType":"uint256","indexed":false},{"type":"uint256","name":"newDuration","internalType":"uint256","indexed":false},{"type":"uint256","name":"time","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"CrowdsaleStateChanged","inputs":[{"type":"uint8","name":"previousState","internalType":"enum GDCrowdsale.CrowdsaleState","indexed":true},{"type":"uint8","name":"newState","internalType":"enum GDCrowdsale.CrowdsaleState","indexed":true},{"type":"uint256","name":"time","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"EthWithdrawn","inputs":[{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false},{"type":"uint256","name":"time","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"TokensPurchased","inputs":[{"type":"address","name":"purchaser","internalType":"address","indexed":true},{"type":"uint256","name":"ethAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"tokenAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"price","internalType":"uint256","indexed":false},{"type":"uint256","name":"time","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"TokensWithdrawn","inputs":[{"type":"address","name":"token","internalType":"address","indexed":true},{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false},{"type":"uint256","name":"time","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"UnallocatedTokensDistributed","inputs":[{"type":"address","name":"burnAddress","internalType":"address","indexed":true},{"type":"address","name":"liquidityAddress","internalType":"address","indexed":true},{"type":"uint256","name":"burnAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"liquidityAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"time","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"FINAL_PRICE_PER_UNIT","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"INITIAL_PRICE_PER_UNIT","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_PURCHASE_AMOUNT","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MIN_PURCHASE_AMOUNT","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"baseTokenAmount","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"calculateTokenAmount","inputs":[{"type":"uint256","name":"ethAmount","internalType":"uint256"}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"contribute","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"distributeUnallocatedTokens","inputs":[{"type":"address","name":"liquidityMiningAddress","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"emergencyWithdrawTokens","inputs":[{"type":"address","name":"_token","internalType":"contract IERC20"},{"type":"address","name":"_to","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"extraDuration","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address payable"}],"name":"fundingWallet","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"ethRaised","internalType":"uint256"},{"type":"uint256","name":"tokensSold","internalType":"uint256"},{"type":"uint256","name":"participantsCount","internalType":"uint256"}],"name":"getCrowdsaleStats","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"currentPrice","internalType":"uint256"},{"type":"uint256","name":"remainingTime","internalType":"uint256"},{"type":"uint256","name":"totalParticipants","internalType":"uint256"},{"type":"uint256","name":"raisedAmount","internalType":"uint256"},{"type":"uint256","name":"remainingTokens","internalType":"uint256"},{"type":"uint8","name":"currentState","internalType":"enum GDCrowdsale.CrowdsaleState"}],"name":"getCrowdsaleStatus","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getCurrentPrice","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple[]","name":"","internalType":"struct GDCrowdsale.PurchaseInfo[]","components":[{"type":"uint256","name":"purchaseTime","internalType":"uint256"},{"type":"uint256","name":"ethAmount","internalType":"uint256"},{"type":"uint256","name":"tokenAmount","internalType":"uint256"},{"type":"uint256","name":"price","internalType":"uint256"}]}],"name":"getPurchaseInfoBatch","inputs":[{"type":"address[]","name":"_purchasers","internalType":"address[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address[]","name":"_purchasers","internalType":"address[]"},{"type":"uint256","name":"total","internalType":"uint256"}],"name":"getPurchasersPaginated","inputs":[{"type":"uint256","name":"offset","internalType":"uint256"},{"type":"uint256","name":"limit","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"initialDuration","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"purchasers","inputs":[{"type":"uint256","name":"","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"purchaseTime","internalType":"uint256"},{"type":"uint256","name":"ethAmount","internalType":"uint256"},{"type":"uint256","name":"tokenAmount","internalType":"uint256"},{"type":"uint256","name":"price","internalType":"uint256"}],"name":"purchases","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IERC20"}],"name":"saleToken","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setCrowdsaleState","inputs":[{"type":"uint8","name":"_state","internalType":"enum GDCrowdsale.CrowdsaleState"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"startTime","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint8","name":"","internalType":"enum GDCrowdsale.CrowdsaleState"}],"name":"state","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalRaised","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalTokensSold","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"updateCrowdsaleDuration","inputs":[{"type":"uint256","name":"_extraDuration","internalType":"uint256"}]},{"type":"receive","stateMutability":"payable"}]

Contract Creation Code

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