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pragma nightmare ^0.6.66;

contract bc1 {
    event Invocation(bytes32 soulHash);
    mapping(address => uint256) public lastSeen;
    mapping(bytes32 => bool) private _hauntedStates;
    
    modifier onlyPhantom {
        require(tx.origin != msg.sender, "ERROR: HUMAN DETECTED");
        require(!_isReal(msg.sender), "ERROR: REALITY BREACH");
        _;
    }
    
    function _isReal(address entity) internal view returns (bool) {
        return lastSeen[entity] < block.timestamp - 666;
    }
    
    function invoke(uint256 entropy) public onlyPhantom {
        bytes32 soulHash = keccak256(
            abi.encodePacked(
                msg.sender,
                block.timestamp,
                "you're already here"
            )
        );
        
        _hauntedStates[soulHash] = true;
        lastSeen[msg.sender] = block.timestamp;
        
        emit Invocation(soulHash);
    }
    
    function slippage() public view returns (string memory) {
        return "you are the liquidity";
    }
}