Cryo Explorer Ethereum Mainnet

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

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

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;
    string public symbol;
    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;
        unchecked {balanceOf[to] += amount;}
        emit Transfer(msg.sender, to, amount);
        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.
        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;
        balanceOf[from] -= amount;
        unchecked {balanceOf[to] += amount;}
        emit Transfer(from, to, amount);
        return true;
    }


    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;
        unchecked {balanceOf[to] += amount;}
        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;
        unchecked {totalSupply -= amount;}
        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import "./ERC20.sol";

//
//  OG PEPE ON UNISWAP V4
//  
//
//  4
//   44
//     444
//       444                   4444
//        4444            4444     4444
//          4444          4444444    4444                           4
//            4444        44444444     4444                         4
//             44444       4444444       4444444444444444       444444
//           4   44444     44444444       444444444444444444444    4444
//            4    44444    4444444         4444444444444444444444  44444
//             4     444444  4444444         44444444444444444444444 44  4
//              44     44444   444444          444444444444444444444 4     4
//               44      44444   44444           4444444444444444444 4 44
//                44       4444     44             444444444444444     444
//                444     4444                        4444444
//               4444444444444                     44                      4
//              44444444444                        444444     444444444    44
//             444444           4444               4444     4444444444      44
//             4444           44    44              4      44444444444
//            44444          444444444                   444444444444    4444
//            44444          44444444                  4444  44444444    444444
//            44444                                  4444   444444444    44444444
//           44444                                 4444     44444444    4444444444
//          44444                                4444      444444444   444444444444
//         44444                               4444        44444444    444444444444
//       4444444                             4444          44444444         4444444
//      4444444                            44444          44444444          4444444
//     44444444                           44444444444444444444444444444        4444
//   4444444444                           44444444444444444444444444444         444
//  444444444444                         444444444444444444444444444444   444   444
//  44444444444444                                      444444444         44444
// 44444  44444444444         444                       44444444         444444
// 44444  4444444444      4444444444      444444        44444444    444444444444
//  444444444444444      4444  444444    4444444       44444444     444444444444
//  444444444444444     444    444444     444444       44444444      44444444444
//   4444444444444     4444   444444        4444                      4444444444
//    444444444444      4     44444         4444                       444444444
//     44444444444           444444         444                        44444444
//      44444444            444444         4444                         4444444
//                          44444          444                          44444
//                          44444         444      4                    4444
//                          44444        444      44                   444
//                          44444       444      4444
//                           444444  44444        444
//                             444444444           444
//                                                  44444   444
//                                                      444

contract V4Pepe is ERC20 {
    constructor() ERC20("Pepe 4.0", "PEPE", 18) {
        _mint(msg.sender, 420_690_000_000_000 * 10 ** 18);
    }
}