Contract 0x4aad757bae148528335339f350ab08e70094e190

 
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0xb76a6f312b1b20dfbe80d08690d37ce82dc7ea211fa0d4ceab3304793e1cd7f1Deposit188553992021-10-11 19:25:06528 days 1 hr ago0x1d8b28a0fdb71de81280e6a254707c4006476428 IN  0x4aad757bae148528335339f350ab08e70094e19010 FTM0.008299950841
0x394c019244e41e108272301cd2726f7c676d3c0abc6216efb146689db729f216Release Funds187833392021-10-10 21:46:52528 days 23 hrs agoDark Matter DeFi: Deployer IN  0x4aad757bae148528335339f350ab08e70094e1900 FTM1.046495892205
0x94c0725eaee9b59a8a4464efdcb3b957a0d58ca130e427a5149697883d717f7dDeposit187809962021-10-10 21:04:32529 days 11 mins ago0x45c9563c114060fa6d0e7b46e6746c55bcf0c37d IN  0x4aad757bae148528335339f350ab08e70094e1900.000000000005647 FTM0.018815595926
0x7fc4ab3adfb4e472a04b00bf7af2d063360691e37450367e7af30d775beee402Deposit187809392021-10-10 21:03:11529 days 12 mins ago0x45c9563c114060fa6d0e7b46e6746c55bcf0c37d IN  0x4aad757bae148528335339f350ab08e70094e1903.753613377521503 FTM0.019551745407
0x2ba3baec3b13cae68be85e2cce2703e0e7a34ac9ee7c744859acd270eb1825c2Deposit187805642021-10-10 20:56:11529 days 19 mins ago0x45c9563c114060fa6d0e7b46e6746c55bcf0c37d IN  0x4aad757bae148528335339f350ab08e70094e1900.1 FTM0.018585330422
0x3a4e7c9cec16280f522751b46c1c8dad48dc31d9a1f8b2a5743cb4ac60346f58Transfer187803072021-10-10 20:52:03529 days 23 mins agoDark Matter DeFi: Deployer IN  0x4aad757bae148528335339f350ab08e70094e1904 FTM0.0058427985
0x1971a804e6cd0c35a2cd3790570f5b0cfdc1664d01d035b80a9f5e497b65137eTransfer187800302021-10-10 20:48:00529 days 27 mins ago0x99aeeccfd3ddaf268cf81b7b92a832dda89f4d80 IN  0x4aad757bae148528335339f350ab08e70094e1904 FTM0.008455198332
0x115040ad151fecdd39e04986e40ddba8ef3a695ebaa9bab51d1047d36063c6eeDeposit187795112021-10-10 20:40:23529 days 35 mins ago0x258a598e2e0229ad18e4adae74477102e5f7f8d9 IN  0x4aad757bae148528335339f350ab08e70094e190400 FTM0.009756127414
0xeaf92a39036e03556a5f6c717b7731d8bb589e28f358b6dc34907ebdfaefdaffDeposit187794992021-10-10 20:40:07529 days 35 mins ago0x9654299bea25e7d8d3e31ff03b51ee56f77e4862 IN  0x4aad757bae148528335339f350ab08e70094e190450 FTM0.028067247516
0xf02dfffbda85f248b8260ce14b0f912c11cdc5e50d09076640357a2abb156d22Deposit187794982021-10-10 20:40:05529 days 35 mins ago0x89421774703570108345e3bfc3317267e2994c66 IN  0x4aad757bae148528335339f350ab08e70094e19010 FTM0.09174
0xc8b1b2c989e59e79de9cf8f01e8420679ce612b7a734ae42faf9df105e2dfda0Deposit187794842021-10-10 20:39:44529 days 36 mins ago0x07bd45f50f7d7789d492abc7d210fc26e3fcee2c IN  0x4aad757bae148528335339f350ab08e70094e19050 FTM0.027877153062
0xe1681698761fdbeef03bf4ce0b5e6253d5a90cbb20c594cb2b7bbf1ded3dde27Deposit187794842021-10-10 20:39:44529 days 36 mins ago0xc88bafef5484b3291d4306bc823997cc98293f2b IN  0x4aad757bae148528335339f350ab08e70094e19010 FTM0.026271024186
0xdd6dc56c98e844b40ab86d403a103eb55bd16199fecf4b0c7ceaa2e08a028568Deposit187794742021-10-10 20:39:31529 days 36 mins ago0x9c47afca236ba8d805544763f23a28abe3376970 IN  0x4aad757bae148528335339f350ab08e70094e19012 FTM0.017116538292
0xe70472828f9af01fc7d3e9596d3f31ad5b3d0468a697feafb509516e7817893bDeposit187794632021-10-10 20:39:18529 days 36 mins ago0x2d5a6d7ab823d0bb44cfc2c35651c4be04b416df IN  0x4aad757bae148528335339f350ab08e70094e190150 FTM0.025395411756
0x0be06ba09e8fd7e89141b553b52f7afdde4f3ddc20fd8a737194f292972c99d4Deposit187794322021-10-10 20:38:55529 days 36 mins ago0xacdd2782dbe6c371f02fc95b3fc52539e6a40cd5 IN  0x4aad757bae148528335339f350ab08e70094e190130 FTM0.025425383214
0x3bad1b3b14e8573f65bdda7c838def1cb4020de804b207adf9a89851fe02889aDeposit187794102021-10-10 20:38:38529 days 37 mins ago0xc93de3416205ff077596f5bb692aa2ceb177e1dd IN  0x4aad757bae148528335339f350ab08e70094e190325 FTM0.025421254914
0x7f454e62f8a3f08063b053bd68bced2834a37220f2d44286ceee7762724c147eDeposit187794092021-10-10 20:38:37529 days 37 mins ago0xc2552747697ad2eea67dd75e10f7933a62ceb64c IN  0x4aad757bae148528335339f350ab08e70094e190100 FTM0.025422135618
0x895cb44da7587de736d0c44bd3e5d3f54d5538f2298ee6a9ac11141bf9b99470Deposit187794062021-10-10 20:38:35529 days 37 mins ago0x95b768bf0d7312565d11e89e273350c32c3f0c55 IN  0x4aad757bae148528335339f350ab08e70094e190300 FTM0.025471785306
0xc3ebf27241ce31cf78dcc8f584518857b24190e137f66b71bff36bf88e65047fDeposit187793792021-10-10 20:38:15529 days 37 mins ago0x9c47afca236ba8d805544763f23a28abe3376970 IN  0x4aad757bae148528335339f350ab08e70094e190188 FTM0.017124447186
0xaef073853cc73b84f4edbd8879557104c5cc8b18e171861d093c9c780a8e3daaDeposit187793712021-10-10 20:38:09529 days 37 mins ago0x925462b3ddcc1e92cba13ddc3c922f7652a06b4f IN  0x4aad757bae148528335339f350ab08e70094e19020 FTM0.017139653748
0x93fb56c987c31f22f30fe5e51952e7679c58ae2b3fdd4dfb24062ab90ddfa0faDeposit187793692021-10-10 20:38:08529 days 37 mins ago0x9c47afca236ba8d805544763f23a28abe3376970 IN  0x4aad757bae148528335339f350ab08e70094e190100 FTM0.017124447186
0x6ae05c24c5bbfe895953d05f41e9dde83f9c7f17741ac1b1aaf7491a44e614edDeposit187793602021-10-10 20:38:00529 days 37 mins ago0x9c47afca236ba8d805544763f23a28abe3376970 IN  0x4aad757bae148528335339f350ab08e70094e190100 FTM0.017124447186
0xeea7e78d054bfd8e5845076364d2a5036fa4437bf4deeeb5c93d9ac11c2b5dc6Deposit187793582021-10-10 20:37:59529 days 37 mins ago0xd6b1d8f7bde0235ea7137c295b22eb91787ce584 IN  0x4aad757bae148528335339f350ab08e70094e19050 FTM0.01713309696
0xa76542e7500e98fabf88019e9ef12d9cada3136507976a2b9b6b482f5701b44cDeposit187793492021-10-10 20:37:52529 days 37 mins ago0xe611e1fe5a69385593a76c934fdd90b0270a79e0 IN  0x4aad757bae148528335339f350ab08e70094e19011.5 FTM0.017121687408
0x40d526b7b27c68b76a61226ed8152ed16e570e835eb91057a314c15c3798d153Deposit187793342021-10-10 20:37:41529 days 38 mins ago0x4797062b9361389a15e3aab374064c5f18d4e7ad IN  0x4aad757bae148528335339f350ab08e70094e1901,000 FTM0.025429208772
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0x394c019244e41e108272301cd2726f7c676d3c0abc6216efb146689db729f216187833392021-10-10 21:46:52528 days 23 hrs ago 0x4aad757bae148528335339f350ab08e70094e190 SpookySwap: Router100,000 FTM
0xb7520ad0dd17a4ac3cc637ca28dd3e7c6da9cf636c1426b47b55d464a512a15f187661272021-10-10 17:12:09529 days 4 hrs ago Dark Matter DeFi: Deployer  Contract Creation0 FTM
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Contract Source Code Verified (Exact Match)

Contract Name:
Presale

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 8500 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at FtmScan.com on 2021-10-10
*/

// SPDX-License-Identifier: MIT

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

pragma solidity ^0.6.12;

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
    }

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

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

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

pragma solidity ^0.6.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor() internal {}

    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

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

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

pragma solidity ^0.6.0;

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

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

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

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

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

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

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

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

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

pragma solidity ^0.6.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

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

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

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

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

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

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

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

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

pragma solidity ^0.6.0;

/**
 * @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}.
 * For a generic mechanism see {ERC20MinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-ERC20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of 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.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;
    using Address for address;

    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name, string memory symbol) public {
        _name = name;
        _symbol = symbol;
        _decimals = 18;
    }

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

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view 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 value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * 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 returns (uint8) {
        return _decimals;
    }

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

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

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

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

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount)
        public
        virtual
        override
        returns (bool)
    {
        _approve(_msgSender(), spender, amount);
        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};
     *
     * Requirements:
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue)
        public
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].add(addedValue)
        );
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue)
        public
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].sub(
                subtractedValue,
                "ERC20: decreased allowance below zero"
            )
        );
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(
            amount,
            "ERC20: transfer amount exceeds balance"
        );
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(
            amount,
            "ERC20: burn amount exceeds balance"
        );
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
     *
     * This is 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.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

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

pragma solidity ^0.6.0;

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

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

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

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

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

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

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

pragma solidity ^0.6.0;

interface DarkMatter {
    function mint(address to, uint256 value) external;

    function unpause() external;

    function balanceOf(address account) external returns (uint256 amount);

    function approve(address spender, uint256 amount) external;

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);
}

interface ISpookySwapRouter02 {
    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );
}

contract Presale  is Ownable {
    using SafeMath for uint256;

    DarkMatter public token;
    ISpookySwapRouter02 internal spookyswapRouter =
        ISpookySwapRouter02(0xF491e7B69E4244ad4002BC14e878a34207E38c29);

    uint256 public presaleStartTimestamp;
    uint256 public presaleEndTimestamp;
    uint256 public softCapEthAmount = 30000 ether;
    uint256 public hardCapEthAmount = 100000 ether;
    uint256 public totalDepositedEthBalance;
    uint256 public minimumDepositEthAmount = 10 ether;
    uint256 public maximumDepositEthAmount = 2000 ether;

    mapping(address => uint256) public deposits;

    constructor(DarkMatter _token) public {
        token = _token;
       
       presaleStartTimestamp =  1633896000;
            presaleEndTimestamp = presaleStartTimestamp.add(2 days);
        
        
    }

    receive() external payable {
        deposit();
    }

    function deposit() public payable {
        require(
            now >= presaleStartTimestamp && now <= presaleEndTimestamp,
            "presale is not active"
        );
        require(
            totalDepositedEthBalance.add(msg.value) <= hardCapEthAmount,
            "deposit limits reached"
        );
        require(
            deposits[msg.sender].add(msg.value) >= minimumDepositEthAmount &&
                deposits[msg.sender].add(msg.value) <= maximumDepositEthAmount,
            "incorrect amount"
        );

        uint256 rewardTokenCount;

        rewardTokenCount = 0.25 ether; // 40 tokens per FTM

        uint256 tokenAmount = msg.value.mul(1e18).div(rewardTokenCount);
        token.mint(msg.sender, tokenAmount);
        totalDepositedEthBalance = totalDepositedEthBalance.add(msg.value);
        deposits[msg.sender] = deposits[msg.sender].add(msg.value);
        emit Deposited(msg.sender, msg.value);
    }

    function releaseFunds() external onlyOwner {
        require(
            (now >= presaleEndTimestamp &&
                totalDepositedEthBalance == hardCapEthAmount) ||
                totalDepositedEthBalance == hardCapEthAmount,
            "presale is active"
        );
        uint256 amountFtm = address(this).balance;
        uint256 amountToken = 250000 ether;

        token.unpause();
        token.mint(address(this), amountToken);
        token.approve(address(spookyswapRouter), amountToken);
        spookyswapRouter.addLiquidityETH{value: amountFtm}(
            address(token),
            amountToken,
            amountToken,
            amountFtm,
            address(0x0),
            now
        );
    }

    // If presale amount doesn't get reached
    function reclaimftm() external {
        require(
            now >= presaleEndTimestamp &&
                totalDepositedEthBalance < hardCapEthAmount,
            "presale failed"
        );
        require(deposits[msg.sender] > 0, "no deposit");
        payable(msg.sender).transfer(deposits[msg.sender]);
        deposits[msg.sender] = 0;
    }

    // recover tokens ERC20 sent in error.
    function recoverERC20(address tokenAddress, uint256 tokenAmount)
        external
        onlyOwner
    {
        IERC20(tokenAddress).transfer(this.owner(), tokenAmount);
        emit Recovered(tokenAddress, tokenAmount);
    }

    function getDepositAmount() public view returns (uint256) {
        return totalDepositedEthBalance;
    }

    function getLeftTimeAmount() public view returns (uint256) {
        if (now > presaleEndTimestamp) {
            return 0;
        } else {
            return (presaleEndTimestamp - now);
        }
    }

    event Deposited(address indexed user, uint256 amount);
    event Recovered(address token, uint256 amount);
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"contract DarkMatter","name":"_token","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposited","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":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Recovered","type":"event"},{"inputs":[],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"deposits","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDepositAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLeftTimeAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"hardCapEthAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maximumDepositEthAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minimumDepositEthAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"presaleEndTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"presaleStartTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"reclaimftm","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint256","name":"tokenAmount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"releaseFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"softCapEthAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract DarkMatter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalDepositedEthBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

00000000000000000000000090e892fed501ae00596448aecf998c88816e5c0f

-----Decoded View---------------
Arg [0] : _token (address): 0x90e892fed501ae00596448aecf998c88816e5c0f

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000090e892fed501ae00596448aecf998c88816e5c0f


Deployed ByteCode Sourcemap

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Swarm Source

ipfs://ac99ad109db41d25fcadd414a0378b5316e24f53347bf8d10e86b297d4382376
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Validator ID :
0 FTM

Amount Staked
0

Amount Delegated
0

Staking Total
0

Staking Start Epoch
0

Staking Start Time
0

Proof of Importance
0

Origination Score
0

Validation Score
0

Active
0

Online
0

Downtime
0 s
Address Amount claimed Rewards Created On Epoch Created On
Block Uncle Number Difficulty Gas Used Reward
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