Optimistic Rollup Oracle Fraud Proof Audit

We rigorously test the challenge mechanism's correctness, ensuring it can correctly identify and prove invalid state roots derived from malicious oracle data. This prevents incorrect settlements from being finalized.

Audit the data sourcing, signing, and delivery pipeline for manipulation risks. We verify liveness guarantees and assess trust assumptions in relayers or committees to prevent data withholding attacks.

Review the economic security of your fraud proof system. We analyze bond sizes, slashing conditions, and incentive alignment to ensure it's prohibitively expensive for validators to act maliciously.

Evaluate the challenge period (dispute time delay) for adequacy against network congestion and adversarial timing attacks. We ensure users have sufficient time to submit fraud proofs before assets are considered final.

Scrutinize proxy patterns, timelocks, and multi-sig configurations controlling critical oracle parameters. We identify centralization risks and recommend secure governance practices for parameter updates.

Profile the gas costs of submitting and verifying fraud proofs. We identify optimizations to keep dispute costs manageable for users, ensuring the system remains economically viable under attack.

We audit the full off-chain fraud proof generation system, not just the on-chain verifier. This includes the sequencer state tracking, proof construction logic, and data availability layer integration, ensuring the entire pipeline is secure and reliable.

Our review rigorously tests the assumptions and mechanisms for reading L1 state and posting proofs back to the L1 rollup contract. We identify race conditions, reorg handling flaws, and gas optimization issues that could delay or invalidate fraud proofs.

We model complex attack scenarios specific to oracle operators, including MEV extraction, censorship collusion, and griefing attacks. Our audit ensures the economic incentives are aligned to keep the system honest under adversarial conditions.

We assess the oracle's integration with the core rollup stack (e.g., OP Stack, Arbitrum Nitro) and provide a secure blueprint for future upgrades. This prevents introducing vulnerabilities during protocol updates or when adding new proof types.