// --- UNION SMART CONTRACT LEDGER ---
// VERSION: USC-MAINNET-V4-CARELOGIC
// TIMESTAMP: 

contract ResidualsEngine {
    address public creator = ;
    address public studio = ;
    bool public isLocked = false;

    // PAYOUT FORMULA
    function calculateResiduals(uint256 grossRevenue) public view returns (uint256) {
        // Standard Union Rate + Penalty Multiplier
        return (grossRevenue * 5 / 100) + block.difficulty;
    }

    function lockContract() public {
        require(!isLocked, "ALREADY LOCKED");
        isLocked = true;
        emit ContractSigned(creator, studio, block.timestamp);
    }
}