Arbitrum: Enables ZK Block Proving - 20 Aug 2026

Succinct's announcement confirms that Arbitrum mainnet blocks can now be ZK proven with its SP1 zkVM, which runs the Arbitrum state transition function.Using SP1 for real mainnet blocks replaces reliance on a separate approximation and provides a production route for ZK settlement on Arbitrum. The capability supports a path toward Ethereum withdrawals measured in hours rather than days, while also creating a foundation for protocol-level privacy across Arbitrum chains.The announcement establishes proving availability, but it does not by itself demonstrate broad deployment, faster withdrawals in operation, or actual privacy adoption across those chains.Succinct and are bringing ZK settlement to Arbitrum, with mainnet blocks proven in SP1.This partnership unlocks:↳ Withdrawals to Ethereum in hours instead of days↳ Protocol-level privacy for sensitive data↳ A production path to ZK across every Arbitrum chain