MATIC Price: $0.723709 (-1.66%)
Gas: 36 GWei
 

Overview

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MATIC Value

$0.00

Token Holdings

Sponsored

Transaction Hash
Method
Block
From
To
Value
Mint562719502024-04-26 10:42:1926 days ago1714128139IN
0xCb64CdeB...5baE46060
0 MATIC0.0035802799.20683885
Approve550228822024-03-24 10:21:2759 days ago1711275687IN
0xCb64CdeB...5baE46060
0 MATIC0.0017073433.58803842
Approve547814992024-03-17 22:41:2965 days ago1710715289IN
0xCb64CdeB...5baE46060
0 MATIC0.0015466530.26950776
Approve544571852024-03-09 15:53:5574 days ago1709999635IN
0xCb64CdeB...5baE46060
0 MATIC0.00594931116.43404929
Approve520196642024-01-06 20:44:51136 days ago1704573891IN
0xCb64CdeB...5baE46060
0 MATIC0.0016139831.58738307
Approve511161142023-12-14 8:55:22160 days ago1702544122IN
0xCb64CdeB...5baE46060
0 MATIC0.01891743370.23312012
Approve511160422023-12-14 8:52:38160 days ago1702543958IN
0xCb64CdeB...5baE46060
0 MATIC0.02043112399.85762559
Approve511158762023-12-14 8:46:24160 days ago1702543584IN
0xCb64CdeB...5baE46060
0 MATIC0.01491872291.97441529
Transfer511145932023-12-14 7:59:22160 days ago1702540762IN
0xCb64CdeB...5baE46060
0 MATIC0.01223405314.5568433
Approve511106542023-12-14 5:35:01160 days ago1702532101IN
0xCb64CdeB...5baE46060
0 MATIC0.00671905132.24411479
Transfer511105232023-12-14 5:30:23160 days ago1702531823IN
0xCb64CdeB...5baE46060
0 MATIC0.00857627153.13406832
Transfer511103992023-12-14 5:25:59160 days ago1702531559IN
0xCb64CdeB...5baE46060
0 MATIC0.00810758144.76540202
Approve510739642023-12-13 6:35:49161 days ago1702449349IN
0xCb64CdeB...5baE46060
0 MATIC0.00597727117.64432955
Approve510739172023-12-13 6:34:09161 days ago1702449249IN
0xCb64CdeB...5baE46060
0 MATIC0.00838607165.05430818
Approve510739102023-12-13 6:33:55161 days ago1702449235IN
0xCb64CdeB...5baE46060
0 MATIC0.00590156174.95451221
Transfer510732862023-12-13 6:10:10161 days ago1702447810IN
0xCb64CdeB...5baE46060
0 MATIC0.00719828128.52927088
Transfer510732552023-12-13 6:09:04161 days ago1702447744IN
0xCb64CdeB...5baE46060
0 MATIC0.00824451147.21029914
Transfer510716022023-12-13 5:05:41161 days ago1702443941IN
0xCb64CdeB...5baE46060
0 MATIC0.0037074195.29412977
Approve510707732023-12-13 4:33:39161 days ago1702442019IN
0xCb64CdeB...5baE46060
0 MATIC0.00464599150.31693018
Approve510707732023-12-13 4:33:39161 days ago1702442019IN
0xCb64CdeB...5baE46060
0 MATIC0.0076373150.31693018
Transfer510406992023-12-12 9:47:53162 days ago1702374473IN
0xCb64CdeB...5baE46060
0 MATIC0.00645944115.33699579
0x60806040496812242023-11-08 5:11:18196 days ago1699420278IN
 Create: MEDIFAKT
0 MATIC0.23680991201.36828987

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Contract Source Code Verified (Exact Match)

Contract Name:
MEDIFAKT

Compiler Version
v0.8.0+commit.c7dfd78e

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 5 : MEDIFAKT.sol
// SPDX-License-Identifier: MIT
//
//  ____    ____   ________   ______     _____   ________       _        ___  ____    _________  
// |_   \  /   _| |_   __  | |_   _ `.  |_   _| |_   __  |     / \      |_  ||_  _|  |  _   _  | 
//   |   \/   |     | |_ \_|   | | `. \   | |     | |_ \_|    / _ \       | |_/ /    |_/ | | \_| 
//   | |\  /| |     |  _| _    | |  | |   | |     |  _|      / ___ \      |  __'.        | |     
//  _| |_\/_| |_   _| |__/ |  _| |_.' /  _| |_   _| |_     _/ /   \ \_   _| |  \ \_     _| |_    
// |_____||_____| |________| |______.'  |_____| |_____|   |____| |____| |____||____|   |_____|   
//              
//                                                                               

pragma solidity ^0.8.0;

import './Security.sol';

contract MEDIFAKT is Security {

    string private _name;
    string private _symbol;
    uint256 private _decimals;

    uint256 private _totalSupply;

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

    constructor() {
        _name = "MEDIFAKT";
        _symbol = "FAKT";
        _decimals = 18;

        _mint(_msgSender(), 999999999 * 10 ** 18);
    }

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

    /**
    * @dev Returns the decimals of the token.
    */
    function decimals() public view returns (uint256) {
        return _decimals;
    }

    /**
    * @dev Returns the total supply of the token.
    */
    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    /**
    * @dev Returns the amount of tokens owned by `account`.
    */
    function balanceOf(address account) public view returns (uint256) {
        return _balances[account];
    }

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

    /**
     * @dev Mints the amount of tokens by owner.
     */
    function mint(uint256 amount) public onlyOwner {
        _mint(_msgSender(), amount);
    }

    /**
     * @dev Burns the amount of tokens owned by caller.
     */
    function burn(uint256 amount) public {
        _burn(_msgSender(), amount);
    }

    /**
    * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
    */
    function approve(address spender, uint256 amount) public whenNotPaused returns (bool) {
        address owner = _msgSender();
        require(!isBlackListed[owner], "FAKT: locked account");
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev Increases the allowance of `spender` by `amount`.
     */
    function increaseAllowance(address spender, uint256 addedValue) public whenNotPaused returns (bool) {
        address owner = _msgSender();
        require(!isBlackListed[owner], "FAKT: locked account");
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Decreases the allowance of `spender` by `amount`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public whenNotPaused returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);

        require(!isBlackListed[owner], "FAKT: locked account");
        require(currentAllowance >= subtractedValue, "FAKT: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
    * @dev Moves `amount` tokens from the caller's account to `to`.
    */
    function transfer(address to, uint256 amount) public whenNotPaused returns (bool) {
        address owner = _msgSender();
        require(!isBlackListed[owner], "FAKT: locked account");
        _transfer(owner, to, amount);
        return true;
    }

    /**
    * @dev Moves `amount` tokens from `from` to `to` using the
    * allowance mechanism. `amount` is then deducted from the caller's
    * allowance.
    */
    function transferFrom(address from, address to, uint256 amount) public whenNotPaused returns (bool) {
        address spender = _msgSender();
        require(!isBlackListed[from], "FAKT: locked account");
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /*////////////////////////////////////////////////
                    INTERNAL FUNCTIONS
      ////////////////////////////////////////////////*/

    function _mint(address account, uint256 amount) internal {
        require(account != address(0), "FAKT: mint to the zero address");

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

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

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

    function _burn(address account, uint256 amount) internal {
        require(account != address(0), "FAKT: burn from the zero address");

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

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "FAKT: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

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

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

    function _approve(address owner, address spender, uint256 amount) internal {
        require(owner != address(0), "FAKT: approve from the zero address");
        require(spender != address(0), "FAKT: approve to the zero address");

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

    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "FAKT: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    function _transfer(address from, address to, uint256 amount) internal {
        require(from != address(0), "FAKT: transfer from the zero address");
        require(to != address(0), "FAKT: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "FAKT: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount) internal {}
    function _afterTokenTransfer(address from, address to, uint256 amount) internal {}

    /*////////////////////////////////////////////////
                    EVENTS
      ////////////////////////////////////////////////*/

    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);
}

File 1 of 5 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @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() {
        _transferOwnership(_msgSender());
    }

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

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(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");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 1 of 5 : Pausable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

File 1 of 5 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

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

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

File 2 of 5 : Security.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";

contract Security is Ownable, Pausable {
    
    mapping(address => bool) isBlackListed;

    /**
     * @dev Pauses the contract.
     */
    function pause() public onlyOwner {
        _pause();
    }

    /**
     * @dev Unpause the contract.
     */
    function unpause() public onlyOwner {
        _unpause();
    }

    /**
     * @dev Adds `account` to the blacklist.
     */
    function lockUser(address account) external onlyOwner {
        isBlackListed[account] = true;        
        emit LockedUser(account);
    }

    /**
     @dev Removes `account` from the blacklist.
     */
    function unlockUser(address account) external onlyOwner {
        isBlackListed[account] = false;
        emit UnlockedUser(account);
    }

    event LockedUser(address indexed account);
    event UnlockedUser(address indexed account);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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":"account","type":"address"}],"name":"LockedUser","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":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"}],"name":"UnlockedUser","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"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":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"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":"lockUser","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","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":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"unlockUser","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.