Why do multi-prover systems matter for zkVM Security? zkVMs are still evolving. Bugs - in provers or verifiers - are inevitable at this stage. Multi-prover architectures are a practical way to maintain liveness and security, even when the newest proof system isn’t perfect. Filling in for @DeclanFox14 at our Berlin Ethproofs Summit, @OffchainLabs Product Manager @zkLumi emphasized that one of the most important safeguards against malicious or faulty upgrades to zkVMs is prover diversity. Instead of relying on a single prover implementation, a multi-prover setup can: • Run multiple ZK proof implementations in parallel. • Incorporate attestations from different systems. • Fall back to alternative proof types (e.g. fraud proofs) if a proof fails or disagrees with another. For example, @arbitrum Orbit chains can operate in a hybrid mode: • Normally run with a ZK proof. • If a dispute occurs or a prover fails, fall back to fraud proofs. • Maintain multiple zkVMs or ZK implementations to catch errors. This approach provides resilience if a zkVM upgrade introduces a flaw - whether it’s a malicious change or an unintended bug - and ensures there’s always a secure path to validating state. Also featuring @alexanderlhicks of @ethereumfndn and @mpfzajac of @NethermindEth. Watch the full panel here: