Contract 0xb9c8f0d3254007ee4b98970b94544e473cd610ec 5

 
Txn Hash Method
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0x263a140fe8c6f8a8ebcc0f0482b45c92f7787a8af24bc814cd17bff12cfc049eApprove405848412022-11-23 15:34:3610 days 9 hrs ago0x18615bcf792a9af80bc0000e5d0d66148afa7b30 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00002867
0xee3cefbab610eebcb876b363c939e90a4b945f1f2a2903d386418c967ef89bd5Approve397712342022-11-20 23:06:1513 days 2 hrs ago0x245bd9ea138ee25f19052264691eb14b846a26ec IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.0000217
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0x479b8e497c8eafb6bd4c0a997b6085dfa0cc6b438df1529a05029ef25d6cc7f5Transfer386277762022-11-16 18:52:5917 days 6 hrs ago0xfc51cc24fe48711967b0b51e201004319c0b7dd8 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00003083
0xd0fd1631506c8c8608745afc7fd402e5fb3cdbcd635b2497a97b56141fb4d4f5Approve385812262022-11-16 14:57:4717 days 10 hrs ago0xb89dd038b8f64d81e1b848353ac9177ec1aeefc5 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00002869
0x572d0156264d7dad82b4183202f1cac58bbb2ec6e0537b6804cc6be74cd479f8Approve383436672022-11-15 16:33:2518 days 8 hrs ago0xb41a129c22b8f135fc1b81e93ee1d4eca49c31b9 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00003251
0x953d915644eba91efbf9440801023510a3e83daa8417ea59b506f879391c1a8cApprove372357392022-11-11 14:19:4722 days 11 hrs ago0x018cab73a80baadd582fe1857d1447d8a46dc6f4 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00002775
0x0ae25351dde5ee4cd5947c4eb8504f77e5ab4c1459a8053c047e5b70ab72f149Approve360100682022-11-07 12:39:2726 days 12 hrs ago0xad83880ad5fc9b3c5d0f134bdd4ecc32159a0155 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00028845
0x493a86fe1ca45b498dc7188caa92201a87b5132253cbadf0d3c0cb432343e1e5Approve354340242022-11-05 10:36:1228 days 14 hrs ago0xe18cb080a033e71a18dacb538304e703425688ff IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00002012
0x69a5d6e7d5ec8648cb9c16da6d07373970c8205738ca266beef7f165f300818bApprove352502522022-11-04 17:26:3429 days 8 hrs ago0x52779cfef3add09451757a78a30c31975b5c474b IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00003576
0xf86212edfcbd26a602fd44365354372d3ffdb8038c25210445dc359219cc12b8Approve340882792022-10-31 6:13:1633 days 19 hrs ago0xf556a555817a106ce3930c61f65bcdacc5f37b9b IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.0000131
0x80cab4365b012ed97068c137536db0625d9aff7dbf5db106c8745ea902dc62b3Approve334356182022-10-28 20:41:1836 days 4 hrs ago0xb2d7c3aec073443011a42a25f8577920890b37cc IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00003489
0x4440d5e09014f421da62321b72563bb7681948adaed568d19761cdd89000ef4eApprove328858192022-10-27 0:02:4138 days 1 hr ago0xda781e6d7c22fc89182e742b092681d913fb2e77 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00002727
0x44940b9afdeca124939e67873ebe047c9c85ddb0cd4f6dc143a1512fbdd33b80Transfer328123892022-10-26 17:29:1838 days 7 hrs ago0x1936ccc5f6aa94e8b0d1df1179b532c555876575 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.0000407
0xd11ed7e414e74695f0f7b312960a23eed5a0ab4e9690c145a227da01fb7b6d82Approve313953782022-10-20 22:40:1644 days 2 hrs ago0x9351c9f9062091d1c76b05b9446a34aca2418c68 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00004933
0x71d539dfef0d0b88b8f3e5f0f941a309322023b6f01ca5436c00c0209fdb3aa9Approve309566512022-10-19 9:16:1245 days 16 hrs ago0xdd84ce1adcb3a4908db61a1dfa3353c3974c5a2b IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00002386
0xe0efed601fa2e189cb5ff34af4446074258db2b2e61d099bb3b5e1f87397c9edApprove305637832022-10-17 10:06:4947 days 15 hrs ago0x3035ae7ec0fea803acddaf995d5ea7db281ef4d8 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00001817
0x403bece38a7279da1fb5946b168734b1a1e902c88ca979360762165175939159Approve303067822022-10-15 22:36:4749 days 2 hrs ago0x7b70efc4bca9cc0733c1b615cf480e33f19119f2 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.0000285
0x60c992af23c93ce5c203c598b97f0d8c64a6356a66e3e0f47616b54ec2656e41Approve301334252022-10-14 19:59:2550 days 5 hrs ago0x7a1f999a9501d50861cd54bd6dd2a001eb6ed807 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00003414
0xf74f380e319c18e3e47a08a135f12e6168371a6f23e928cbcaf6d957a3640636Approve298313252022-10-13 7:16:3551 days 18 hrs ago0x9c57027b1eca93093a6f446422c59c85a5a3fa52 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00001972
0xeea173c5154b841f8b5862a1e29ba27efbe7bec92844389be33ef132956d2506Approve297245032022-10-12 13:50:0752 days 11 hrs ago0x29c3e6edc2385c4f85248b8b7e43cce8dcd6bd78 IN  0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH0.00023322
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Latest 25 internal transaction
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0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xa58710805fe2773defa3d0f526f6ff1d90075fea2ae5a3e32dd481fb908184c0425944182022-12-01 2:48:032 days 22 hrs ago 0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xf10cb0eded9a1c3d888deb4d983b95b1ca9a5882cdf9339c8b528946514c8093424483512022-11-30 13:34:443 days 11 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x05dc0f18e796360e713fa358ab464bc63fefc0a0d8ff791bbdc5101fbfb5c9fb413099662022-11-26 8:15:187 days 17 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x30371f9167b0f9ed35b2f2cb384591ac4d26aeb204b4614a5f43d0d0a79d1e14403759532022-11-22 22:26:4911 days 3 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xf05df6676ecb92e3977e1f7cf8a12f13ec9cff2b5afde916234019fabf3b56a2397713402022-11-20 23:06:4713 days 2 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x3a198d21ebfb46a932c4177aa6ed183c252aa01bf9a1f59384d7a2c74037412f394995762022-11-20 2:55:5513 days 22 hrs ago Balancer: Vault 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x3a198d21ebfb46a932c4177aa6ed183c252aa01bf9a1f59384d7a2c74037412f394995762022-11-20 2:55:5513 days 22 hrs ago Balancer: Vault 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xb6c490c30be881c0677102fa16ffbcabbc3c7bde2cec39e66fba756cd72a8cba391724792022-11-18 23:57:0615 days 1 hr ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x23a533b718d656b973228342a9eb1a4e04654965f784dae15377abffc2cb5efe385813312022-11-16 14:58:1417 days 10 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xb8e37e2e31aa713b7ca484c4d3edea0efb7532888cfd1060e4b406b123a5f016383438032022-11-15 16:34:0518 days 8 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x343f996968f60d27f9d96c158927c911001df5891a836ed9ffabf19c84823075372358152022-11-11 14:20:0622 days 11 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x1fc39603981cc59c31dea32c33280528e8259f9e011253f9b2310de9c4986f2c354341172022-11-05 10:36:3928 days 14 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xee499a8810df473d562578565106b3b601540f0aa1ef039a6690c9c28592bdd5352503512022-11-04 17:27:0429 days 8 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0xfe76b83102412fc6a1b7d5dc53289314491eb47f21e10383879ff9c9b3b5ca8f351747022022-11-04 10:09:3829 days 15 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x467bb0db244059e4320eb43d709f870d34e58005f80d6b0943d8fe277debeaf5340883342022-10-31 6:13:3433 days 19 hrs ago 0x0cae51e1032e8461f4806e26332c030e34de3adb 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x467bb0db244059e4320eb43d709f870d34e58005f80d6b0943d8fe277debeaf5340883342022-10-31 6:13:3433 days 19 hrs ago 0xe3fcd45676c626c39f1c6201ad32cdfa3dd9293b 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x467bb0db244059e4320eb43d709f870d34e58005f80d6b0943d8fe277debeaf5340883342022-10-31 6:13:3433 days 19 hrs ago 0xe3fcd45676c626c39f1c6201ad32cdfa3dd9293b 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
0x467bb0db244059e4320eb43d709f870d34e58005f80d6b0943d8fe277debeaf5340883342022-10-31 6:13:3433 days 19 hrs ago 0xe3fcd45676c626c39f1c6201ad32cdfa3dd9293b 0xb9c8f0d3254007ee4b98970b94544e473cd610ec0 ETH
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x3F56e0c36d275367b8C502090EDF38289b3dEa0d

Contract Name:
EditableERC20

Compiler Version
v0.5.17+commit.d19bba13

Optimization Enabled:
Yes with 2000 runs

Other Settings:
default evmVersion, GNU GPLv3 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Arbiscan on 2021-11-22
*/

// Sources flattened with hardhat v2.6.8 https://hardhat.org

// File @openzeppelin/contracts/GSN/[email protected]

pragma solidity ^0.5.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor () internal { }
    // solhint-disable-previous-line no-empty-blocks

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

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


// File @openzeppelin/contracts/token/ERC20/[email protected]

pragma solidity ^0.5.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP. Does not include
 * the optional functions; to access them see {ERC20Detailed}.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

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

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


// File @openzeppelin/contracts/math/[email protected]

pragma solidity ^0.5.0;

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

        return c;
    }

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

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     *
     * _Available since v2.4.0._
     */
    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.
     *
     * _Available since v2.4.0._
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

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

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     *
     * _Available since v2.4.0._
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}


// File @openzeppelin/contracts/token/ERC20/[email protected]

pragma solidity ^0.5.0;



/**
 * @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 {ERC20Mintable}.
 *
 * 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;

    mapping (address => uint256) private _balances;

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

    uint256 private _totalSupply;

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view 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 returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public 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 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 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 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 {
        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 @openzeppelin/contracts/token/ERC20/[email protected]

pragma solidity ^0.5.0;

/**
 * @dev Optional functions from the ERC20 standard.
 */
contract ERC20Detailed is IERC20 {
    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of
     * these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name, string memory symbol, uint8 decimals) public {
        _name = name;
        _symbol = symbol;
        _decimals = decimals;
    }

    /**
     * @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.
     *
     * 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;
    }
}


// File @openzeppelin/contracts/ownership/[email protected]

pragma solidity ^0.5.0;

/**
 * @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.
 *
 * 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(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Returns true if the caller is the current owner.
     */
    function isOwner() public view returns (bool) {
        return _msgSender() == _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 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 onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}


// File contracts/EditableERC20.sol

pragma solidity ^0.5.17;



contract EditableERC20 is Ownable, ERC20, ERC20Detailed {
    string public _name;
    string public _symbol;

    event NameChanged(string newName, address by);
    event SymbolChanged(string newName, address by);
    event Mint(address receiver, uint256 amount, address by);

    constructor (string memory _tempName, string memory _tempSymbol, uint8 _decimals) ERC20Detailed(_name, _symbol, _decimals) public {
        _name = _tempName;
        _symbol = _tempSymbol;
    }

    function setName(string memory _newName) public onlyOwner {
        _name = _newName;
        emit NameChanged(_newName, msg.sender);
    }

    function setSymbol(string memory _newSymbol) public onlyOwner {
        _symbol = _newSymbol;
        emit SymbolChanged(_newSymbol, msg.sender);
    }

    function mint(address _receiver, uint256 _amount) public onlyOwner {
        _mint(_receiver, _amount);
        emit Mint(_receiver, _amount, msg.sender);
    }

    function name() public view returns (string memory){
      return _name;
    }

    function symbol() public view returns (string memory){
      return _symbol;
    }
}

Contract ABI

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Metadata Hash

28a6d5ab0899e818443c56ee2f7b93bad19cfb1aa4aadb2f9808d5505ff79041
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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