Contract 0x668DbF100635f593A3847c0bDaF21f0a09380188

 
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0x9874aec8f768385538b34e09c80f61417070541b26127eed9cb360596ef08cc0Transfer132380212021-09-16 17:01:141 day 3 hrs ago0x561af7b060487c518f41a862b94b5bf164d67d00 IN  BNS.Finance: BNSD Token0 Ether0.002389572653 68.758744675
0x12b9dfcd3a5283cbf64f44a442e8f29729f2adfa14d23af5061a37f5926bb43dTransfer132366892021-09-16 12:14:141 day 8 hrs ago0x2421fc852c0725fb8cca1183187c5887c1fb2f24 IN  BNS.Finance: BNSD Token0 Ether0.001835931431 61.293741237
0xe658cf358168dab061f78038fe62553e86631bee1fca7a3b4e0e8e2ced88490eApprove132222982021-09-14 6:49:233 days 13 hrs ago0x7f7bcb932a143b0735fbabe87c9d93a96c81dba9 IN  BNS.Finance: BNSD Token0 Ether0.001657221942 35.560413331
0xa327677e811b0aac622fadb91f99145ea4a4249c6c277c17ae1e3ef7639f0389Transfer132093182021-09-12 6:29:235 days 14 hrs ago0x0121e815427deacb76601dbbb0768329e479bb9d IN  BNS.Finance: BNSD Token0 Ether0.0014970550
0x1514cd4577472d3de6c0c52f317688d891063b90c8507a66b66627964c8fc222Transfer132042032021-09-11 11:33:226 days 9 hrs ago0x747e1584474277044037fecff816ee4667a19871 IN  BNS.Finance: BNSD Token0 Ether0.001955525709 56.2886995
0x345a2bf40c25205c4d55d807935535345535fa3fdeca9c2edc44358792726f6cApprove132021622021-09-11 3:48:406 days 16 hrs ago0x6abc361a00529e50006f5b5bc35df98b6a01aee4 IN  BNS.Finance: BNSD Token0 Ether0.00571006245 122.525641072
0x1e4966d50d2a591cd0f3700e0daf3881c94a21b79eb2754c145a6137f088194dTransfer132020922021-09-11 3:32:296 days 17 hrs ago0x45df2a8af1c59e0dd0ade36d11088ba03f8dbcf7 IN  BNS.Finance: BNSD Token0 Ether0.002362082331 67.967724551
0x0951dbdbca04d212ec3d931dd6733664a899aed043d799e127299f0ecff0f6aaTransfer131962862021-09-10 6:02:137 days 14 hrs ago0x173b47de9fd4b093c18dc8d8804b9b9bbcbcda92 IN  BNS.Finance: BNSD Token0 Ether0.002310299792 66.500670467
0xa87859167dd983e43f114cdac3ead6ca2a5cc7fefdc9aa4c2fd2fb63319e241eTransfer131958642021-09-10 4:29:357 days 16 hrs ago0x9245be59c764a2c6569aa082a3bcfc11c13c3e2b IN  BNS.Finance: BNSD Token0 Ether0.002414469958 80.576337672
0xfcd4d67af6d7fc9b01646c80d25075a8edb1bc721722fe77417666c45c1d4a7cTransfer131941532021-09-09 21:59:107 days 22 hrs ago0x3bcf5ed2b58caf2a70327bdab0e9df726dc07a13 IN  BNS.Finance: BNSD Token0 Ether0.002096333104 69.987417119
0x5296fd54e25fcf3644fc7364ca5bcd72550da424160e2381e80070e8a14c6958Transfer131848312021-09-08 11:29:249 days 9 hrs ago0x03084f06463f35ff8f59e86d949b44a984dcbc95 IN  BNS.Finance: BNSD Token0 Ether0.003227411577 62.255966858
0x728e551d24c21880f6d57223eccb97946b080e202495bebdbdb71465fa2d837bTransfer131780142021-09-07 10:04:0610 days 10 hrs ago0x752bfd0a6874a9562fbc42fab85794bee51162cf IN  BNS.Finance: BNSD Token0 Ether0.002725760798 78.486590416
0x05047d87b7bd9bd2f2f150ec450dc1aa2be4f6a0fb16200404fbb78310c80d84Transfer131771682021-09-07 6:59:5310 days 13 hrs ago0x41da7092117d246a9e1d221dfa8ddf4ec0032ed8 IN  BNS.Finance: BNSD Token0 Ether0.004155087607 119.643168739
0x3d4f2a8b7f20bac47a2a0ab4af1119d4729fc064102553f1f3c15d31d2281300Approve131771432021-09-07 6:53:0710 days 13 hrs ago0xa18a277b4159d52daa104b2cf38b4c639a4b8db4 IN  BNS.Finance: BNSD Token0 Ether0.003361930225 72.139781253
0x34e3af8cc04815cfaeca899755a669489e5aa3bcbc5836819f2884aef3da0372Transfer131540172021-09-03 17:11:2714 days 3 hrs ago0x3b1aef20c28bc0ce87507d59cca1dfff267114fa IN  BNS.Finance: BNSD Token0 Ether0.00555154756 159.798150904
0x2f6f667b7b9c26f623cdbe04507ccb30dda4424d8f2d862a47bac259c75ad016Transfer131453722021-09-02 9:09:1415 days 11 hrs ago0x9245be59c764a2c6569aa082a3bcfc11c13c3e2b IN  BNS.Finance: BNSD Token0 Ether0.002246613428 74.974584631
0xa466e7300599c2cb00e77396b4cc1d71f537f455fd5bdc6eabd18855f8f3f585Transfer131423482021-09-01 22:05:0715 days 22 hrs ago0x03084f06463f35ff8f59e86d949b44a984dcbc95 IN  BNS.Finance: BNSD Token0 Ether0.004930022967 141.907917673
0x653d2d99887910ccc0d84b8755d4490f52bf1d5036adeee188855ea1a448e797Approve131381352021-09-01 6:16:5016 days 14 hrs ago0xb136c85d631cbc295aecece33b7e171dc0fd0349 IN  BNS.Finance: BNSD Token0 Ether0.00452853667297.172642805
0xac93c33ba76ffa60d6268e6b5b04f4eb296ffc7226576a9b88ff3a0fef076f48Transfer131315462021-08-31 5:44:3917 days 14 hrs ago0x03084f06463f35ff8f59e86d949b44a984dcbc95 IN  BNS.Finance: BNSD Token0 Ether0.004073336597 78.573650147
0xc90a40868cc453b5755e1a4487e03470769ffd40d18cb7fdeb1ebbe31d148912Approve131280622021-08-30 16:49:1418 days 3 hrs ago0xb5f013fdbe1fbb8ca1f85beb575e88dc4bed799d IN  BNS.Finance: BNSD Token0 Ether0.005652519872 121.290901285
0xa3ee3942f04a3af099f67225507130c93100f94ed5f72740500b79b06dcf6e8bTransfer131280212021-08-30 16:37:3118 days 4 hrs ago0x03084f06463f35ff8f59e86d949b44a984dcbc95 IN  BNS.Finance: BNSD Token0 Ether0.005475429534 105.619674284
0x459ba1e916c47337ee68c1c29e6a9c383b8f948e1d99711b89be5470e6c5c807Transfer131279292021-08-30 16:19:5018 days 4 hrs ago0xaea62b582b5c23107efa03cafa8605f77fdb4569 IN  BNS.Finance: BNSD Token0 Ether0.008042539565 170.881537575
0x92ae3d14babba6441bc085c0fd3d3015b8b45d43e2954a8d4293b908761c6990Transfer131275992021-08-30 15:06:2818 days 5 hrs ago0x03084f06463f35ff8f59e86d949b44a984dcbc95 IN  BNS.Finance: BNSD Token0 Ether0.004962372455 95.722930791
0x60d28cc54d2c19d9b528dd0160eb0a2a80833f2d53aefd2d218294fbae6f126dTransfer131197102021-08-29 10:00:3519 days 10 hrs ago0xc60d1429084887d705e30e6560632d013a47fe0f IN  BNS.Finance: BNSD Token0 Ether0.00777615150
0x46a8747e4dfbe583d4c82df14818fb5d5949dd416eca0d5c905289c1b3990567Transfer131181472021-08-29 4:03:5019 days 16 hrs agoBilaxy 2 IN  BNS.Finance: BNSD Token0 Ether0.00777795150
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OVERVIEW

Yield farming - BNSD

Latest 1 internal transaction
Parent Txn Hash Block From To Value
0x8556b48207c3b847a4d5a655eb14f5557c61201088938845ee23ef4cfc9a61df108201692020-09-08 9:28:24374 days 11 hrs ago 0xd6a062cae6123c158768a5c444ca0896cc60d6b1 BNS.Finance: BNSD Token0.051679929 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
BnsdToken

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2020-09-04
*/

/*

website: bns.finance


BBBBBBBBBBBBBBBBB   NNNNNNNN        NNNNNNNN   SSSSSSSSSSSSSSS         DDDDDDDDDDDDD      EEEEEEEEEEEEEEEEEEEEEEFFFFFFFFFFFFFFFFFFFFFFIIIIIIIIII
B::::::::::::::::B  N:::::::N       N::::::N SS:::::::::::::::S        D::::::::::::DDD   E::::::::::::::::::::EF::::::::::::::::::::FI::::::::I
B::::::BBBBBB:::::B N::::::::N      N::::::NS:::::SSSSSS::::::S        D:::::::::::::::DD E::::::::::::::::::::EF::::::::::::::::::::FI::::::::I
BB:::::B     B:::::BN:::::::::N     N::::::NS:::::S     SSSSSSS        DDD:::::DDDDD:::::DEE::::::EEEEEEEEE::::EFF::::::FFFFFFFFF::::FII::::::II
  B::::B     B:::::BN::::::::::N    N::::::NS:::::S                      D:::::D    D:::::D E:::::E       EEEEEE  F:::::F       FFFFFF  I::::I  
  B::::B     B:::::BN:::::::::::N   N::::::NS:::::S                      D:::::D     D:::::DE:::::E               F:::::F               I::::I  
  B::::BBBBBB:::::B N:::::::N::::N  N::::::N S::::SSSS                   D:::::D     D:::::DE::::::EEEEEEEEEE     F::::::FFFFFFFFFF     I::::I  
  B:::::::::::::BB  N::::::N N::::N N::::::N  SS::::::SSSSS              D:::::D     D:::::DE:::::::::::::::E     F:::::::::::::::F     I::::I  
  B::::BBBBBB:::::B N::::::N  N::::N:::::::N    SSS::::::::SS            D:::::D     D:::::DE:::::::::::::::E     F:::::::::::::::F     I::::I  
  B::::B     B:::::BN::::::N   N:::::::::::N       SSSSSS::::S           D:::::D     D:::::DE::::::EEEEEEEEEE     F::::::FFFFFFFFFF     I::::I  
  B::::B     B:::::BN::::::N    N::::::::::N            S:::::S          D:::::D     D:::::DE:::::E               F:::::F               I::::I  
  B::::B     B:::::BN::::::N     N:::::::::N            S:::::S          D:::::D    D:::::D E:::::E       EEEEEE  F:::::F               I::::I  
BB:::::BBBBBB::::::BN::::::N      N::::::::NSSSSSSS     S:::::S        DDD:::::DDDDD:::::DEE::::::EEEEEEEE:::::EFF:::::::FF           II::::::II
B:::::::::::::::::B N::::::N       N:::::::NS::::::SSSSSS:::::S ...... D:::::::::::::::DD E::::::::::::::::::::EF::::::::FF           I::::::::I
B::::::::::::::::B  N::::::N        N::::::NS:::::::::::::::SS  .::::. D::::::::::::DDD   E::::::::::::::::::::EF::::::::FF           I::::::::I
BBBBBBBBBBBBBBBBB   NNNNNNNN         NNNNNNN SSSSSSSSSSSSSSS    ...... DDDDDDDDDDDDD      EEEEEEEEEEEEEEEEEEEEEEFFFFFFFFFFF           IIIIIIIIII
                                                                                                                                                                                      
                                                         

BNS defi token

*/

pragma solidity ^0.6.12;
/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

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

/**
 * @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);
}

/**
 * @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) {
        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;
    }
}


/**
 * @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");
    }

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

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

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

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

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

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

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

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

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

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

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

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

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

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



/**
 * @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;
    }
}


/**
 * @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 {ERC20PresetMinterPauser}.
 *
 * 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 { }
}

// BnsdToken with Governance.
contract BnsdToken is ERC20("bns.finance", "BNSD"), Ownable {
    /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef).
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
    }
}

Contract Security Audit

Contract ABI

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Swarm Source

ipfs://05c229a032c60485bf46225d1c32a989ebbafa333744dc90184594b457e43fc5
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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