Offchain Labs Hybrid ZK Upgrade for Arbitrum BoLD
Offchain Labs is building a hybrid ZK and fraud-proof system for Arbitrum withdrawals that still requires DAO approval and has no mainnet timeline.
Offchain Labs is developing a hybrid confirmation system that integrates zero-knowledge proofs into Arbitrum’s BoLD settlement layer while retaining the existing optimistic fraud-proof mechanism.
The stated target is to reduce Arbitrum-to-Ethereum withdrawals from roughly seven days to a few hours. The change has not been deployed on mainnet and requires Arbitrum DAO governance approval before any implementation.
Open questions
Current withdrawal times remain unchanged. No deployment timeline or approval status has been provided, and the security, audit, and performance outcomes of the hybrid system remain untested on mainnet.