Fraud Proof Submission

Definition ∞ Fraud proof submission is a mechanism in optimistic rollups where a network participant can present cryptographic evidence that an asserted state transition on a Layer 2 solution is incorrect. If a fraud proof is successfully submitted and verified on the Layer 1 chain, the incorrect state is reverted, and the malicious party is penalized. This process acts as a security check, ensuring the integrity of off-chain computations. It is a critical component for maintaining trust in Layer 2 scaling solutions.
Context ∞ News discussions frequently involve the efficiency and reliability of fraud proof mechanisms in optimistic rollups, particularly concerning the challenge period duration. The ability to effectively submit and process fraud proofs is paramount for the security model of these scaling solutions. Ongoing research aims to optimize these proofs for faster verification and reduced on-chain costs.