Contract 0x108aad0fac57435ed4bd2aafbbf1808bad586589 1

Contract Overview

Bee Trade Finance: BTF Token
Balance:
0 AVAX

AVAX Value:
$0.00

Token:
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x0d4a05d6eccebbe3bb7f8df064bfa0d7498ef2075af929029e3f10ad3c62df76Approve231163072022-12-02 11:12:0018 hrs 51 mins ago0x2a8906c8b3aa381d4bb949b53c6f31773ba1e62e IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x9bbc27dd7c79d7fc60e05de3813bb76eb20c89fa7574456ae8310c6d013cc1bbTransfer228004782022-11-24 22:55:038 days 7 hrs ago0x38f043975ddb580c56bb228311dfd73672817e60 IN  Bee Trade Finance: BTF Token0 AVAX0.001307487527.5
0x6c495782ee55575efeddc7e6c823805fb7410b12a05a8fe09c8fc44f2fad7af8Approve226560742022-11-21 12:34:1311 days 17 hrs ago0x174ec9c392a311d3fe2eb14ec4a8cec5d79758d4 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x865be4dc92b71ae5252a51b7d12b92efdb6296525305e7c34213fb258f43a153Transfer226557432022-11-21 12:23:0011 days 17 hrs ago0x9eba423268f156b76b7d4d64bda20e41f130b172 IN  Bee Trade Finance: BTF Token0 AVAX0.001777737527.5
0x47dd46f196a1a82b8fdad0564b0d1d6d9e15e9f6890d0030ae093e89671714e4Transfer224776112022-11-17 4:55:1316 days 1 hr ago0x38f043975ddb580c56bb228311dfd73672817e60 IN  Bee Trade Finance: BTF Token0 AVAX0.001777737527.5
0x19a67432401897d4470301a7a6bcc48397dcaf9519d18bb9816a09e1b321c636Approve224380412022-11-16 5:55:3217 days 8 mins ago0xe573eb98eb57de1621be9541b3650a199ce4deca IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0xea88bfa08272c1eddb8c16fe116b59f3080d6894ba1329d7980b5b1446942734Transfer224379692022-11-16 5:52:4817 days 10 mins ago0x9eba423268f156b76b7d4d64bda20e41f130b172 IN  Bee Trade Finance: BTF Token0 AVAX0.001777737527.5
0x537a93f6ac93be82ce8bf62f3ffc3471643d4a12bd12ca41667a6ad7d07d9aeeApprove220758672022-11-07 16:30:2525 days 13 hrs ago0xeb830d7218aa643ca5d71ed825ccc6259ce156ec IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x28f213e80e6b7ed9c9c2bbaef1cd5ee89439cd6e8e15f35bfa5d60a0eaede337Approve219707002022-11-05 4:18:3828 days 1 hr ago0x21dbb449ddd0f5884606195dfd4293dc914dd8d3 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x4a0acb1097eacda6da84e330a7de7166de5e2916d41ca0fb0d8052eb2613f190Transfer219553812022-11-04 19:33:5428 days 10 hrs ago0x38f043975ddb580c56bb228311dfd73672817e60 IN  Bee Trade Finance: BTF Token0 AVAX0.001778067527.5
0xb565ce87ae6bed8dd6f40c36f3c1b725431aa5054d355329be6c390836b6c8f1Approve218194552022-11-01 14:18:3031 days 15 hrs ago0xa05156f50e406dc5dd9bcc2fc3e4830924412b8f IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x4838f2c001206c35ae0ccdd91c46b263191027adc121e6ef72606e09cef49e11Transfer218191502022-11-01 14:08:1731 days 15 hrs ago0x9eba423268f156b76b7d4d64bda20e41f130b172 IN  Bee Trade Finance: BTF Token0 AVAX0.001777737527.5
0x4d1e84ba581267cb8e8f589ca384960f1dcfe374fa26bdc2a08aa218bdbac0b7Approve216534982022-10-28 16:16:3335 days 13 hrs ago0xc89280f9dd003ead60404819615816a6e358fa53 IN  Bee Trade Finance: BTF Token0 AVAX0.001289887527.5
0xf58e1841edec290cff1eddafc5d5011015e36d98fa5faf307f6bd67de0711bdbTransfer216533922022-10-28 16:13:2235 days 13 hrs ago0x9eba423268f156b76b7d4d64bda20e41f130b172 IN  Bee Trade Finance: BTF Token0 AVAX0.001307157527.5
0xe22eca256f6719b57ca75ecbc1a5177e97d24e27fad7b00e6582a4d2a3841e71Approve215872242022-10-27 2:52:2437 days 3 hrs ago0xc89280f9dd003ead60404819615816a6e358fa53 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x3fbc831d76d2b0147e73d414f099d3e30777a5b377c9de8eaf72dbc903046b51Approve214377612022-10-23 14:34:1840 days 15 hrs ago0xc69862d65535a5d51f01847bf11ff482c8b8eb81 IN  Bee Trade Finance: BTF Token0 AVAX0.000742307527.5
0x304ce1bc731ece09515f9923f990c7bfaf0d52d4d7047f3e068cfe8dad2e0a96Approve214376902022-10-23 14:31:5340 days 15 hrs ago0xc69862d65535a5d51f01847bf11ff482c8b8eb81 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0xe5ee40b82d50cc58a3fb071190711e2fffb071727ad2f163f91b746c20ff5aaeApprove213567332022-10-21 16:37:2442 days 13 hrs ago0xc89280f9dd003ead60404819615816a6e358fa53 IN  Bee Trade Finance: BTF Token0 AVAX0.000819307527.5
0x7bcab52e229544aa54a93806774edb57a0ed04611c0c42c71c921b3ab978ba4aApprove213566722022-10-21 16:35:2242 days 13 hrs ago0xc89280f9dd003ead60404819615816a6e358fa53 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x956d99ac0cab220b78b77244db40730ca4e32b8290fc4617f994f63a92ae326fApprove213346972022-10-21 4:08:4843 days 1 hr ago0xeff768c4130ead9eca93f75b1059882eb972a606 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x5c0485babf7835341b4beab80a2bfdf23598338040fdc9e0836eee2f9b3419e8Approve211885922022-10-17 17:23:4946 days 12 hrs ago0xc89280f9dd003ead60404819615816a6e358fa53 IN  Bee Trade Finance: BTF Token0 AVAX0.001289227527.5
0x4fab6e29690a63c85252aa9c6772582a733262ff4965f41c9f685c2f411dc43eApprove210856622022-10-15 6:49:3148 days 23 hrs ago0xad912e22f45cb9a14d87959fd1173d6c06dbf136 IN  Bee Trade Finance: BTF Token0 AVAX0.000742307527.5
0x9f012c7e90fb9c7c4e9f16ac44cb55346f2b4e374a2a2fcc60d9ed862713ddf7Approve210856262022-10-15 6:48:1848 days 23 hrs ago0xad912e22f45cb9a14d87959fd1173d6c06dbf136 IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
0x8269b47dfc7b03874aeca3a6e0ff8f92a5032ad314fed5882f8d08d625dc675aTransfer210855452022-10-15 6:45:3548 days 23 hrs ago0x9eba423268f156b76b7d4d64bda20e41f130b172 IN  Bee Trade Finance: BTF Token0 AVAX0.001777737527.5
0xda33f4e3e2ff9b3e1834947ebe41ee91eeb319fcf15dbbfa91c80f36bc23ce9dApprove210847912022-10-15 6:19:5048 days 23 hrs ago0x2a8906c8b3aa381d4bb949b53c6f31773ba1e62e IN  Bee Trade Finance: BTF Token0 AVAX0.001289557527.5
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OVERVIEW

Bee Trade Finance Network is a fully decentralized peer-to-peer hybrid cryptocurrency exchange for the Avalanche DeFi ecosystem built on EVM.

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Contract Source Code Verified (Exact Match)

Contract Name:
BTFToken

Compiler Version
v0.8.0+commit.c7dfd78e

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at snowtrace.io on 2022-02-25
*/

/**
 *Submitted for verification at snowtrace.io on 2021-12-21
*/

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeMath.sol


// OpenZeppelin Contracts v4.3.2 (utils/math/SafeMath.sol)

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 generally not needed starting with Solidity 0.8, since 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);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // 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 (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @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) {
        return a + b;
    }

    /**
     * @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 a - b;
    }

    /**
     * @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) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting 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 a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting 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) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * 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) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol


// OpenZeppelin Contracts v4.3.2 (utils/Context.sol)

pragma solidity 0.8.0;

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

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

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/IERC20.sol


// OpenZeppelin Contracts v4.3.2 (token/ERC20/IERC20.sol)

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.
     *
     * 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: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/IERC20Metadata.sol


// OpenZeppelin Contracts v4.3.2 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity 0.8.0;


/**
 * @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);
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol


// OpenZeppelin Contracts v4.3.2 (token/ERC20/ERC20.sol)

pragma solidity 0.8.0;




/**
 * @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 {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 Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * 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, IERC20Metadata {
    using SafeMath for uint256;
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    // custom variables added
    uint256 BURN_FEE = 1;
    uint256 TOTAL_BURNED = 0;
    uint256 TOTAL_BURN_LIMIT = 324000000000000000000000000;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

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

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override 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 this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

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

    /**
     * returns total burnt
     */
    function totalBurnt() public view virtual returns (uint256) {
        return TOTAL_BURNED;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual 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);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        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] + 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) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * 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);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }

        // check if the TOTAL_BURNT LIMIT HAS REACHED
        if(TOTAL_BURNED >= TOTAL_BURN_LIMIT){
            _balances[recipient] += amount;
            emit Transfer(sender, recipient, amount);
        } else {
            // calculate the amount to be burnt
            uint256 burnAmount = amount.mul(BURN_FEE) / 1000000000000000000000000;
            // burn the tokens
            _burn(_msgSender(), burnAmount);
            // add the burnt amount to the total amount burnt
            TOTAL_BURNED = TOTAL_BURNED.add(burnAmount);
            
            _balances[recipient] += amount;

            emit Transfer(sender, recipient, amount);
        }

        

        _afterTokenTransfer(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:
     *
     * - `account` 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 += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(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);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    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 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 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 {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/ERC20Burnable.sol


// OpenZeppelin Contracts v4.3.2 (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity 0.8.0;



/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 currentAllowance = allowance(account, _msgSender());
        require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance");
        unchecked {
            _approve(account, _msgSender(), currentAllowance - amount);
        }
        _burn(account, amount);
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/presets/ERC20PresetFixedSupply.sol


// OpenZeppelin Contracts v4.4.1 (token/ERC20/presets/ERC20PresetFixedSupply.sol)
pragma solidity 0.8.0;


/**
 * @dev {ERC20} token, including:
 *
 *  - Preminted initial supply
 *  - Ability for holders to burn (destroy) their tokens
 *  - No access control mechanism (for minting/pausing) and hence no governance
 *
 * This contract uses {ERC20Burnable} to include burn capabilities - head to
 * its documentation for details.
 *
 * _Available since v3.4._
 *
 * _Deprecated in favor of https://wizard.openzeppelin.com/[Contracts Wizard]._
 */
contract ERC20PresetFixedSupply is ERC20Burnable {
    /**
     * @dev Mints `initialSupply` amount of token and transfers them to `owner`.
     *
     * See {ERC20-constructor}.
     */
    constructor(
        string memory name,
        string memory symbol,
        uint256 initialSupply,
        address owner
    ) ERC20(name, symbol) {
        _mint(owner, initialSupply);
    }
}

// File: contracts/BTF.sol

pragma solidity 0.8.0;



contract BTFToken is ERC20 {
    constructor() ERC20("Bee Trade Finance", "BTF") {
        _mint(msg.sender, 1080000000000000000000000000);
    }  
}

Contract ABI

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Swarm Source

ipfs://68cc3c5fa31f1b1332577df9d7da3529bf1e4eb59200b2983002add5dcc0d474
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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