Launches Arbitrum BOLD Testnet Advancing Decentralization

Offchain Labs launched the Arbitrum BOLD testnet, a next-gen dispute protocol with interactive fraud proofs for optimistic rollups. BOLD enables permissionless validation, replacing the 14 allowlisted validators, securing Arbitrum with fixed 7-day dispute resolution. It posts assertions to Ethereum Sepolia, backed by 10 years of expertise and audited by Trail of Bits. A DAO vote and live AMA are upcoming.