Contract 0x0563DCe613D559a47877fFD1593549fb9d3510D6 4

Token Contract 
 
 
Txn Hash
Method
Block
From
To
Value
0x32e2031a3b8a526102f260719d07c936584aaa6aeb4e60ccd26d0da30cf787afApprove(pending)2023-02-01 20:41:161 hr 21 mins ago0x7c724888070d65483e8f7279e04068896300339b IN SuperBid: SUPERBID Token0 Ether(Pending)(Pending)
0x8872c28e99ec129a65a4ffc709ef033690f27658c020834e9da828c064c02200Approve165197572023-01-30 12:51:472 days 9 hrs ago0xc000000be68420c4be47ee7004d0c69dfe57fd34 IN  SuperBid: SUPERBID Token0 Ether0.00080212 17.36379296
0x58ea72f9b915e9161332d033cff07db8fe48d28e9c9ca8a80c402fe853af7e43Approve165183312023-01-30 8:05:352 days 13 hrs ago0x99777d04af03ab44146d0825db8f51069d3a9011 IN  SuperBid: SUPERBID Token0 Ether0.00082692 17.81276315
0x1b51023591173841d3f682a1bef6eaed83c6ea62785b78b208f20cf0dd7882bbApprove165171042023-01-30 3:58:472 days 18 hrs ago0x6cf29589751a652b1ab01faf22282e4d6ae5e9a2 IN  SuperBid: SUPERBID Token0 Ether0.00075172 16.17212934
0xd40f2323cf2832da5ebd2ed1faf2c59257748fae9602af87b8f5044e608d949aApprove165139462023-01-29 17:24:113 days 4 hrs ago0x5a116b132b94c2877b755028d7415d3e6ee7354f IN  SuperBid: SUPERBID Token0 Ether0.00101139 21.75848441
0x986872ee6fe8076a1c9d5fb666317b8806aab73847c1b75e27aa17f587310ad8Approve164837202023-01-25 12:05:117 days 9 hrs ago0x07933fed9ce595f23bb4100bc792b46c5e0aa1c0 IN  SuperBid: SUPERBID Token0 Ether0.00040985 16.93689359
0xabf9a4913b0663bbc348292fd6fceed64e85e83559b617cf35120eae94633d21Approve164337542023-01-18 12:40:5914 days 9 hrs ago0x80a8ffbfbf6fc6af3c1090181993cf4ee6ac2168 IN  SuperBid: SUPERBID Token0 Ether0.0008291 17.83676358
0xab9add93832f41a05b1e9e328e0855253c5a5fed030e5c5c0a00c822d0210e1aApprove164238542023-01-17 3:33:5915 days 18 hrs ago0x971bf0796415179708ce1e2b385e4ef211ace8ef IN  SuperBid: SUPERBID Token0 Ether0.00069444 14.93975389
0x24210265c1d74d089cf49ec5ce00e99c6bc59e4a94dd6ceb08f90a8050a7920fApprove164069782023-01-14 18:56:3518 days 3 hrs ago0xf992a0213409093e8bbdb3a7a1277ef765443d42 IN  SuperBid: SUPERBID Token0 Ether0.0007835 16.85573651
0xda9ad3ce2f2ba559a6e8a0d737099b8d0e9f48a6fe11d968d89d5fba141a67b2Approve163585642023-01-08 0:43:4724 days 21 hrs ago0x92e63a68232cb6490098efd1cfe8bc2aaa4a600e IN  SuperBid: SUPERBID Token0 Ether0.00035396 14.62733493
0x93d72d65469ba8e49bc7fb6c09716c3fbc94ca10cbbc3a953a00e686b86788d5Transfer163568842023-01-07 19:05:3525 days 2 hrs ago0xb13495c6a75720c1a8380f71befbf9a64df966c4 IN  SuperBid: SUPERBID Token0 Ether0.00140092 29.86216374
0x945e9965630b8d1fc492f9403a5be0e65407d452d3a52772531f28aa9533f939Approve163382462023-01-05 4:37:3527 days 17 hrs ago0x5d042cca1f20b482f89b5c444cf9733cb12a1fb7 IN  SuperBid: SUPERBID Token0 Ether0.00087647 18.85580554
0xd72a3cd45b6319f32ac886deab63e7aa9d4ba75b789c5f1ded399dc744345cedApprove163334452023-01-04 12:32:1128 days 9 hrs ago0x3595f4d05b8196197255163e4f171c19d0d810f0 IN  SuperBid: SUPERBID Token0 Ether0.00084704 18.22274003
0x10cb33a5444ab4f07db8d2e3c80009460c67dd00c2f3d92f2e68cecab94d81c2Approve162952972022-12-30 4:48:1133 days 17 hrs ago0x10db2db146ef1692b9429cb411c5581190cd6e47 IN  SuperBid: SUPERBID Token0 Ether0.0007496 16.12648726
0xef8ae0e28682fa6be14d500e69948717c2b691c18a89f6e81bd62bf10af9e36fTransfer162467922022-12-23 10:22:1140 days 11 hrs ago0x4bb1d1237ddb5d99df3a267b1bfeaa3021091a39 IN  SuperBid: SUPERBID Token0 Ether0.00066457 14.16606859
0x63e89cc781e7b2824ff35e0cbf9708f3b3814d54e00848d898af336fa3cbd190Approve162321312022-12-21 9:17:5942 days 12 hrs ago0x3f8e6374903db28fcccbf64148cfb6378a4ab7c1 IN  SuperBid: SUPERBID Token0 Ether0.00056397 12.13285059
0x6255bced36cdc53d94eff691cae17d85cbe3f4bb3f9ed0485427adacc2cf33ebApprove162132682022-12-18 18:07:3545 days 3 hrs ago0xd71c3a02b0b1d78a712b97a75220b0f4fa412db8 IN  SuperBid: SUPERBID Token0 Ether0.00095356 20.51437282
0xe9ad0f9931654476bf08a195c7fa4757115ca9f3bc1f3dbc971bd745df217358Approve162031712022-12-17 8:17:5946 days 13 hrs ago0x215ef35b2445355e7e31d7544db6e2abf29b19ed IN  SuperBid: SUPERBID Token0 Ether0.00071338 15.34726588
0x376ab6fa23e33ebdb11e69fe83830f2bdafaa0a2117867cf33a03ad598f316eeApprove161804162022-12-14 4:01:1149 days 18 hrs ago0xa711a2fd39cb5e1c9c5b5958185273f004af67e1 IN  SuperBid: SUPERBID Token0 Ether0.00068451 14.72617003
0x1372c1dc861013bd93ea1e82b63f9f0b18770f6d463522fc5e3fafa4338828c2Approve161627362022-12-11 16:43:1152 days 5 hrs ago0xc2490394d003ed4edacb333da9bf1cc0fb17c27b IN  SuperBid: SUPERBID Token0 Ether0.00041078 15.45285547
0x0a7355d64831210521f0b7c23918c3409827af08c1e3ccaacf7b38c975aacc3cApprove161627142022-12-11 16:38:4752 days 5 hrs ago0xc2490394d003ed4edacb333da9bf1cc0fb17c27b IN  SuperBid: SUPERBID Token0 Ether0.00072793 15.66019955
0x5834a3d8c373d2d17f108f637bf719a36c06042afc114ca794316e562054d7c6Approve161434602022-12-09 0:05:5954 days 21 hrs ago0x83da53abc924095b0b3dc827974a5c381df4ff2f IN  SuperBid: SUPERBID Token0 Ether0.00035968 14.86367998
0x90c7da9483f5263fd612775ebc505ab17ba2876e2a26d329107b9b3fda2943e3Approve161281302022-12-06 20:25:5957 days 1 hr ago0xf8b0fa3ab6271c185450da9e133fdcbc588edae7 IN  SuperBid: SUPERBID Token0 Ether0.00037217 14.20555225
0x8561573fd3c7ce42eb089cc4a301fbfafb8c4a529b7a5a0065e148041f628e6bApprove161281282022-12-06 20:25:3557 days 1 hr ago0xf8b0fa3ab6271c185450da9e133fdcbc588edae7 IN  SuperBid: SUPERBID Token0 Ether0.00038205 14.58262231
0x4d9f34a8bb316a357abd5eaa0bf85fe32be9e18d87c379b57e3803aa0dbef523Approve161281232022-12-06 20:24:3557 days 1 hr ago0xf8b0fa3ab6271c185450da9e133fdcbc588edae7 IN  SuperBid: SUPERBID Token0 Ether0.00040904 16.90348032
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OVERVIEW

SuperBid is an innovative social-auction app that connects influencers with their fans.

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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x29b0aac8b07ef2473bfdca859c9c30fdddd6bf81

Contract Name:
SimpleERC20

Compiler Version
v0.7.4+commit.3f05b770

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2020-10-31
*/

// SPDX-License-Identifier: MIT

/*
 * Token was generated for FREE using https://vittominacori.github.io/erc20-generator/
 *
 * Smart Contract Source Code: https://github.com/vittominacori/erc20-generator
 * Smart Contract Test Builds: https://travis-ci.com/github/vittominacori/erc20-generator
 * Web Site Source Code: https://github.com/vittominacori/erc20-generator/tree/dapp
 *
 * Detailed Info: https://medium.com/@vittominacori/create-an-erc20-token-in-less-than-a-minute-2a8751c4d6f4
 *
 * Note: "Contract Source Code Verified (Similar Match)" means that this Token is similar to other tokens deployed
 *  using the same generator. It is not an issue. It means that you won't need to verify your source code because of
 *  it is already verified.
 *
 * Disclaimer: GENERATOR'S AUTHOR IS FREE OF ANY LIABILITY REGARDING THE TOKEN AND THE USE THAT IS MADE OF IT.
 *  The following code is provided under MIT License. Anyone can use it as per their needs.
 *  The generator's purpose is to make people able to tokenize their ideas without coding or paying for it.
 *  Source code is well tested and continuously updated to reduce risk of bugs and introduce language optimizations.
 *  Anyway the purchase of tokens involves a high degree of risk. Before acquiring tokens, it is recommended to
 *  carefully weighs all the information and risks detailed in Token owner's Conditions.
 */

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

pragma solidity ^0.7.0;

/*
 * @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/token/ERC20/IERC20.sol



pragma solidity ^0.7.0;

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

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

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

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

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

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

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

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

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



pragma solidity ^0.7.0;

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

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

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

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



pragma solidity ^0.7.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

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

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

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

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

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

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

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

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

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

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



pragma solidity ^0.7.0;





/**
 * @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 {
    using SafeMath for uint256;
    using Address for address;

    mapping (address => uint256) private _balances;

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

    uint256 private _totalSupply;

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

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

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

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

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view returns (uint8) {
        return _decimals;
    }

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

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

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

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

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20};
     *
     * Requirements:
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

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

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

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

        _beforeTokenTransfer(sender, recipient, amount);

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

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

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

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

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

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

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

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

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

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

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

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



pragma solidity ^0.7.0;

/**
 * @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 () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

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

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

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

// File: eth-token-recover/contracts/TokenRecover.sol



pragma solidity ^0.7.0;



/**
 * @title TokenRecover
 * @author Vittorio Minacori (https://github.com/vittominacori)
 * @dev Allow to recover any ERC20 sent into the contract for error
 */
contract TokenRecover is Ownable {

    /**
     * @dev Remember that only owner can call so be careful when use on contracts generated from other contracts.
     * @param tokenAddress The token contract address
     * @param tokenAmount Number of tokens to be sent
     */
    function recoverERC20(address tokenAddress, uint256 tokenAmount) public onlyOwner {
        IERC20(tokenAddress).transfer(owner(), tokenAmount);
    }
}

// File: contracts/service/ServiceReceiver.sol



pragma solidity ^0.7.0;


/**
 * @title ServiceReceiver
 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator)
 * @dev Implementation of the ServiceReceiver
 */
contract ServiceReceiver is TokenRecover {

    mapping (bytes32 => uint256) private _prices;

    event Created(string serviceName, address indexed serviceAddress);

    function pay(string memory serviceName) public payable {
        require(msg.value == _prices[_toBytes32(serviceName)], "ServiceReceiver: incorrect price");

        emit Created(serviceName, _msgSender());
    }

    function getPrice(string memory serviceName) public view returns (uint256) {
        return _prices[_toBytes32(serviceName)];
    }

    function setPrice(string memory serviceName, uint256 amount) public onlyOwner {
        _prices[_toBytes32(serviceName)] = amount;
    }

    function withdraw(uint256 amount) public onlyOwner {
        payable(owner()).transfer(amount);
    }

    function _toBytes32(string memory serviceName) private pure returns (bytes32) {
        return keccak256(abi.encode(serviceName));
    }
}

// File: contracts/service/ServicePayer.sol



pragma solidity ^0.7.0;


/**
 * @title ServicePayer
 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator)
 * @dev Implementation of the ServicePayer
 */
contract ServicePayer {

    constructor (address payable receiver, string memory serviceName) payable {
        ServiceReceiver(receiver).pay{value: msg.value}(serviceName);
    }
}

// File: contracts/utils/GeneratorCopyright.sol



pragma solidity ^0.7.0;

/**
 * @title GeneratorCopyright
 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator)
 * @dev Implementation of the GeneratorCopyright
 */
contract GeneratorCopyright {

    string private constant _GENERATOR = "https://vittominacori.github.io/erc20-generator";
    string private constant _VERSION = "v4.0.0";

    /**
     * @dev Returns the token generator tool.
     */
    function generator() public pure returns (string memory) {
        return _GENERATOR;
    }

    /**
     * @dev Returns the token generator version.
     */
    function version() public pure returns (string memory) {
        return _VERSION;
    }
}

// File: contracts/token/ERC20/SimpleERC20.sol



pragma solidity ^0.7.0;




/**
 * @title SimpleERC20
 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator)
 * @dev Implementation of the SimpleERC20
 */
contract SimpleERC20 is ERC20, ServicePayer, GeneratorCopyright {

    constructor (
        string memory name,
        string memory symbol,
        uint256 initialBalance,
        address payable feeReceiver
    ) ERC20(name, symbol) ServicePayer(feeReceiver, "SimpleERC20") payable {
        require(initialBalance > 0, "SimpleERC20: supply cannot be zero");

        _mint(_msgSender(), initialBalance);
    }
}

Contract Security Audit

Contract ABI

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Swarm Source

ipfs://d84f2554bbe4134a5e39bc9b40383392476d40826d2dd5b5e8e8e7f44a76c1e8
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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