Contract 0xeb2778f74E5ee038E67AA6c77f0F0451ABd748FD 2

 
Ad
Ad
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x4500642690a4388cb0766d1bc8b52a3a9cb9eba3f536ad421ce1199560b977f7Approve202956102021-10-17 1:13:1714 hrs 48 mins ago0x47bdcb664b87470964f5a8c0067207bf31ffe5ed IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0007989
0x445a7139120d28cec6f7a4e910bda3972386d6ae1bbb9de57b1ed14940e0eff3Approve202956022021-10-17 1:12:4514 hrs 49 mins ago0x47bdcb664b87470964f5a8c0067207bf31ffe5ed IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0xa68a59d73bd32e143b0496a9c8d1670a6465b5da33f7adcfc7d52d241ed11aa7Approve202955592021-10-17 1:09:5314 hrs 52 mins ago0x47bdcb664b87470964f5a8c0067207bf31ffe5ed IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0x8294b2b7224e43fc3b3f47e6e2b521588c31bdd246cf96dbf1959fa996c5d93aApprove202853582021-10-16 18:17:0421 hrs 45 mins ago0xeaf7b723f2602335616887be1222448bbfe3f6b3 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0007989
0x8cd2394dab0767c275e6052bf66771f693511c25ec07631e7541f5ece23a68caApprove202853312021-10-16 18:16:1021 hrs 46 mins ago0xeaf7b723f2602335616887be1222448bbfe3f6b3 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0008829
0x3dfd0f68607d933b633c10385ce2014b25bd3d411639e8db3656ceff9588e670Approve202852812021-10-16 18:13:2621 hrs 48 mins ago0xeaf7b723f2602335616887be1222448bbfe3f6b3 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0007989
0x8344ab2d6678ab52be002fa67bb1c6c4d120114de2fa61a263149691f23f6051Approve202852572021-10-16 18:11:5021 hrs 50 mins ago0x7f7aac0fa4e511fc74e35062c2efb3867ecd26f0 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0xcbf6766ebe4d2b71de33c6a7fd111035c937316604f767ef4395e74a4546e45fApprove202852572021-10-16 18:11:5021 hrs 50 mins ago0xeaf7b723f2602335616887be1222448bbfe3f6b3 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0008829
0x97b828ac1e95ae218870089b941631f6ae5261cc875590d0dfab781d43cb8e68Approve202843742021-10-16 17:39:4622 hrs 22 mins ago0x7f7aac0fa4e511fc74e35062c2efb3867ecd26f0 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0x1bc9858b994f967b54557616c8e2cf020b4669ade8bf4ebfe5b55dac06c9eeb6Approve202761822021-10-16 11:38:351 day 4 hrs ago0x7286cc34b6fd22c94df7c7c6adaf452995dc6e5b IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00153549
0x51099f7c623d639424334f7530beb2768ffbeb53c1f22fda3c188fc96dfb9217Approve202737932021-10-16 9:47:311 day 6 hrs ago0x0530d358d9890964782806aec404d09772220187 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0008829
0x722de1b667395c4e22762d89355b4bbe50341e32f799c41286a9a5070254e45cApprove202328172021-10-15 4:38:582 days 11 hrs ago0xf5f62f54ffd655f3b0d3c3f92c2b7fb9f48a02b3 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00044519904
0xf780c39a26d4ae68842df0ac089f1eb7fc997e0d34526d94c2bfcaad0f91e20eApprove202296692021-10-15 2:07:242 days 13 hrs ago0x73493a3e1efa3402a5b87e338217b7d11606d1e5 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0x5b8c7b189a482f8ca4e90b53ad7cdabed44e39ed6fe6c42c601f10ca6ef533eaTransfer202259242021-10-14 23:43:282 days 16 hrs ago0xf69363517efaa773fc0eabf3091b430fd584d622 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00080775
0xadb1629320c580ce519031985544140e25da1ea54d3115b28fc72f0b1cf8f219Approve202163612021-10-14 17:13:432 days 22 hrs ago0x804af4262bd5dfbf9d8c5298b400df782e87f2ef IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0xb59b8548580807bb934bec9933b8894097c5b8ce3402c9f724b1acd1d568361bApprove202042392021-10-14 9:00:003 days 7 hrs ago0x6d3e0657e92c27f42ec15736dd131773aaf80781 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00043569
0xb8a5057012bb458aafff2ce886abefd2ad8546cdd1a1bc27e71f09a863d7a470Approve202042292021-10-14 8:59:403 days 7 hrs ago0x6d3e0657e92c27f42ec15736dd131773aaf80781 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00043569
0x0b5dfed344ae05b9d6d233388dc2a15eb174e092c27a69ec5330e1cee1495d7bApprove201981132021-10-14 4:57:343 days 11 hrs ago0x6d33ecd723155522d597682df1f0ac10e7d7d9ed IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
0xc0eb2fc3a84a77c49ae4813fec9bd55766b335129fb9c1d593c21392d44e5863Approve201907582021-10-14 0:06:203 days 15 hrs ago0x4ffd0a59a26cb2aa76d403215e4cc2845c053994 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00008829
0x9d0e3a8617526ff5c67ecd4fa0aac0b9f9a511b9ed94a9f4d3ca51a96541e390Approve201670892021-10-13 8:12:144 days 7 hrs ago0x4a5f3c16629313edcf12afb1a64959fc507b8792 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00051183
0xe92c5afe2d6f0289501f7b119d1d1ffa2ba91618696ba8b5d7ba0f173853d5e5Approve201659102021-10-13 7:23:404 days 8 hrs ago0x1f45b4fb26dd61f7a284bae6016b24979986d3ea IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00209385
0x718bab6a1d769f6d6688f31c2479b92d3bd77ff66cf6f9b08538e574a406a8fdApprove201603912021-10-13 3:44:124 days 12 hrs ago0x79f7961b1bbc9e73165aaa1f794437582c010daf IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00043569
0xf09980362b9a05e6423b5858ece743b2ebe94f9a86468c9bf64bdf45b259c1eeApprove201603802021-10-13 3:43:464 days 12 hrs ago0x79f7961b1bbc9e73165aaa1f794437582c010daf IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00043569
0x28193515f26d5e9d6bcc930ecf268f5e2f2915583c7b15b409c6ec1b12a5c31dApprove201603622021-10-13 3:43:104 days 12 hrs ago0x79f7961b1bbc9e73165aaa1f794437582c010daf IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.00043569
0x8972c3cadb4b232828df32a5bd9334bb43021dab90165580e71723cef741b881Approve201304732021-10-12 8:29:205 days 7 hrs ago0xd89e51c6f47bc23bbe3e1baa839983232e8d96c7 IN  0xeb2778f74e5ee038e67aa6c77f0f0451abd748fd0 MATIC0.0013959
[ Download CSV Export 
Parent Txn Hash Block From To Value
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
PolyZapToken

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 9999 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at polygonscan.com on 2021-06-30
*/

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 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;
    }
}

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

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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.
 */
abstract contract Ownable is Context {
    address private _owner;

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

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

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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;
    }
}

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


pragma solidity >=0.6.0 <0.8.0;

// File: contracts/libs/IERC20.sol


pragma solidity >=0.6.4;

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

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

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

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

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external view returns (address);

    /**
     * @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 <0.8.0;

/**
 * @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, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        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) {
        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) {
        // 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) {
        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) {
        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) {
        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) {
        require(b <= a, "SafeMath: subtraction overflow");
        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) {
        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, reverting 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) {
        require(b > 0, "SafeMath: division by zero");
        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) {
        require(b > 0, "SafeMath: modulo by zero");
        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) {
        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.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * 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);
        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) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

// File: contracts/libs/ERC20.sol

pragma solidity >=0.4.0;





/**
 * @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 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, Ownable {
    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;
    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 bep token owner.
     */
    function getOwner() external override view returns (address) {
        return owner();
    }

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

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

    /**
    * @dev Returns the number of decimals used to get its user representation.
    */
    function decimals() public override view returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {ERC20-totalSupply}.
     */
    function totalSupply() public override view returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {ERC20-balanceOf}.
     */
    function balanceOf(address account) public override view returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {ERC20-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 override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {ERC20-allowance}.
     */
    function allowance(address owner, address spender) public override view returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {ERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {ERC20-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 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 {ERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public 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 {ERC20-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 returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, 'ERC20: decreased allowance below zero'));
        return true;
    }

    /**
     * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing
     * the total supply.
     *
     * Requirements
     *
     * - `msg.sender` must be the token owner
     */
    function mint(uint256 amount) public onlyOwner returns (bool) {
        _mint(_msgSender(), amount);
        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');

        _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 {
        require(account != address(0), 'ERC20: mint to the zero address');

        _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 {
        require(account != address(0), 'ERC20: burn from the zero address');

        _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 {
        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 Destroys `amount` tokens from `account`.`amount` is then deducted
     * from the caller's allowance.
     *
     * See {_burn} and {_approve}.
     */
    function _burnFrom(address account, uint256 amount) internal {
        _burn(account, amount);
        _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, 'ERC20: burn amount exceeds allowance'));
    }
}

// File: contracts/PolyZapToken.sol

pragma solidity 0.6.12;


// Thunder Token with Governance.
contract PolyZapToken is ERC20 {

    /// @dev Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef).
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
        _moveDelegates(address(0), _delegates[_to], _amount);
    }

    // Burn address
    address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;
    // Addresses that excluded from antiWhale
    mapping(address => bool) private _excludedFromAntiWhale;
    // Max transfer amount rate in basis points. Eg: 50 - 0.5% of total supply (default the anti whale feature is turned off set to 10000.)
    uint16 public maxTransferAmountRate = 10000;
    // The operator can only update the Anti Whale Settings
    address private _operator;

    // Events
    event OperatorTransferred(address indexed previousOperator, address indexed newOperator);
    event MaxTransferAmountRateUpdated(address indexed operator, uint256 previousRate, uint256 newRate);

    /**
     * @notice Constructs the PantherToken contract.
     */
    constructor() public ERC20('PolyZap', 'PZAP') {
        _operator = _msgSender();
        emit OperatorTransferred(address(0), _operator);

        _excludedFromAntiWhale[msg.sender] = true;
        _excludedFromAntiWhale[address(0)] = true;
        _excludedFromAntiWhale[address(this)] = true;
        _excludedFromAntiWhale[BURN_ADDRESS] = true;
    }

    modifier onlyOperator() {
        require(_operator == msg.sender, "operator: caller is not the operator");
        _;
    }

    modifier antiWhale(address sender, address recipient, uint256 amount) {
        if (maxTransferAmount() > 0) {
            if (
                _excludedFromAntiWhale[sender] == false
            ) {
                require(amount <= maxTransferAmount(), "PZAP::antiWhale: Transfer amount exceeds the maxTransferAmount");
            }
        }
        _;
    }

    /**
     * @dev Returns the max transfer amount.
     */
    function maxTransferAmount() public view returns (uint256) {
        return totalSupply().mul(maxTransferAmountRate).div(10000);
    }

    /**
     * @dev Update the max transfer amount rate.
     * Can only be called by the current operator.
     */
    function updateMaxTransferAmountRate(uint16 _maxTransferAmountRate) public onlyOperator {
        require(_maxTransferAmountRate <= 10000, "PANTHER::updateMaxTransferAmountRate: Max transfer amount rate must not exceed the maximum rate.");
        emit MaxTransferAmountRateUpdated(msg.sender, maxTransferAmountRate, _maxTransferAmountRate);
        maxTransferAmountRate = _maxTransferAmountRate;
    }

    /**
     * @dev Returns the address is excluded from antiWhale or not.
     */
    function isExcludedFromAntiWhale(address _account) public view returns (bool) {
        return _excludedFromAntiWhale[_account];
    }

    /**
     * @dev Exclude or include an address from antiWhale.
     * Can only be called by the current operator.
     */
    function setExcludedFromAntiWhale(address _account, bool _excluded) public onlyOperator {
        _excludedFromAntiWhale[_account] = _excluded;
    }

    /// @dev overrides transfer function to meet tokenomics of PZAP
    function _transfer(address sender, address recipient, uint256 amount) internal virtual override antiWhale(sender, recipient, amount) {
        super._transfer(sender, recipient, amount);
    }

    /**
     * @dev Transfers operator of the contract to a new account (`newOperator`).
     * Can only be called by the current operator.
     */
    function transferOperator(address newOperator) public onlyOperator {
        require(newOperator != address(0), "PolyZapToken::transferOperator: new operator is the zero address");
        emit OperatorTransferred(_operator, newOperator);
        _operator = newOperator;
    }

    // Copied and modified from YAM code:
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol
    // Which is copied and modified from COMPOUND:
    // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol

    /// @dev A record of each accounts delegate
    mapping (address => address) internal _delegates;

    /// @dev A checkpoint for marking number of votes from a given block
    struct Checkpoint {
        uint32 fromBlock;
        uint256 votes;
    }

    /// @dev A record of votes checkpoints for each account, by index
    mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;

    /// @dev The number of checkpoints for each account
    mapping (address => uint32) public numCheckpoints;

    /// @dev The EIP-712 typehash for the contract's domain
    bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");

    /// @dev The EIP-712 typehash for the delegation struct used by the contract
    bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    /// @dev A record of states for signing / validating signatures
    mapping (address => uint) public nonces;

      /// @dev An event thats emitted when an account changes its delegate
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /// @dev An event thats emitted when a delegate account's vote balance changes
    event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);

    /**
     * @dev Delegate votes from `msg.sender` to `delegatee`
     * @param delegator The address to get delegatee for
     */
    function delegates(address delegator)
        external
        view
        returns (address)
    {
        return _delegates[delegator];
    }

   /**
    * @dev Delegate votes from `msg.sender` to `delegatee`
    * @param delegatee The address to delegate votes to
    */
    function delegate(address delegatee) external {
        return _delegate(msg.sender, delegatee);
    }

    /**
     * @notice Delegates votes from signatory to `delegatee`
     * @param delegatee The address to delegate votes to
     * @param nonce The contract state required to match the signature
     * @param expiry The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function delegateBySig(
        address delegatee,
        uint nonce,
        uint expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    )
        external
    {
        bytes32 domainSeparator = keccak256(
            abi.encode(
                DOMAIN_TYPEHASH,
                keccak256(bytes(name())),
                getChainId(),
                address(this)
            )
        );

        bytes32 structHash = keccak256(
            abi.encode(
                DELEGATION_TYPEHASH,
                delegatee,
                nonce,
                expiry
            )
        );

        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                domainSeparator,
                structHash
            )
        );

        address signatory = ecrecover(digest, v, r, s);
        require(signatory != address(0), "TNDR::delegateBySig: invalid signature");
        require(nonce == nonces[signatory]++, "TNDR::delegateBySig: invalid nonce");
        require(now <= expiry, "TNDR::delegateBySig: signature expired");
        return _delegate(signatory, delegatee);
    }

    /**
     * @dev Gets the current votes balance for `account`
     * @param account The address to get votes balance
     * @return The number of current votes for `account`
     */
    function getCurrentVotes(address account)
        external
        view
        returns (uint256)
    {
        uint32 nCheckpoints = numCheckpoints[account];
        return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
    }

    /**
     * @dev Determine the prior number of votes for an account as of a block number
     * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
     * @param account The address of the account to check
     * @param blockNumber The block number to get the vote balance at
     * @return The number of votes the account had as of the given block
     */
    function getPriorVotes(address account, uint blockNumber)
        external
        view
        returns (uint256)
    {
        require(blockNumber < block.number, "TNDR::getPriorVotes: not yet determined");

        uint32 nCheckpoints = numCheckpoints[account];
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
            return checkpoints[account][nCheckpoints - 1].votes;
        }

        // Next check implicit zero balance
        if (checkpoints[account][0].fromBlock > blockNumber) {
            return 0;
        }

        uint32 lower = 0;
        uint32 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            Checkpoint memory cp = checkpoints[account][center];
            if (cp.fromBlock == blockNumber) {
                return cp.votes;
            } else if (cp.fromBlock < blockNumber) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return checkpoints[account][lower].votes;
    }

    function _delegate(address delegator, address delegatee)
        internal
    {
        address currentDelegate = _delegates[delegator];
        uint256 delegatorBalance = balanceOf(delegator); // balance of underlying TNDRs (not scaled);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveDelegates(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {
        if (srcRep != dstRep && amount > 0) {
            if (srcRep != address(0)) {
                // decrease old representative
                uint32 srcRepNum = numCheckpoints[srcRep];
                uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
                uint256 srcRepNew = srcRepOld.sub(amount);
                _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
            }

            if (dstRep != address(0)) {
                // increase new representative
                uint32 dstRepNum = numCheckpoints[dstRep];
                uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
                uint256 dstRepNew = dstRepOld.add(amount);
                _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
            }
        }
    }

    function _writeCheckpoint(
        address delegatee,
        uint32 nCheckpoints,
        uint256 oldVotes,
        uint256 newVotes
    )
        internal
    {
        uint32 blockNumber = safe32(block.number, "TNDR::_writeCheckpoint: block number exceeds 32 bits");

        if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
            checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
        } else {
            checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
            numCheckpoints[delegatee] = nCheckpoints + 1;
        }

        emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
    }

    function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
        require(n < 2**32, errorMessage);
        return uint32(n);
    }

    function getChainId() internal pure returns (uint) {
        uint256 chainId;
        assembly { chainId := chainid() }
        return chainId;
    }
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousRate","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newRate","type":"uint256"}],"name":"MaxTransferAmountRateUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOperator","type":"address"},{"indexed":true,"internalType":"address","name":"newOperator","type":"address"}],"name":"OperatorTransferred","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":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"BURN_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DELEGATION_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint32","name":"","type":"uint32"}],"name":"checkpoints","outputs":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint256","name":"votes","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegator","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getCurrentVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPriorVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"isExcludedFromAntiWhale","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTransferAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTransferAmountRate","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"bool","name":"_excluded","type":"bool"}],"name":"setExcludedFromAntiWhale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOperator","type":"address"}],"name":"transferOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_maxTransferAmountRate","type":"uint16"}],"name":"updateMaxTransferAmountRate","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.