Optimism Finally Starts Testing ‘Fault Proofs’ at Heart of Design – and of Criticism

Optimism and similar rollups aim to borrow their security from Ethereum, meaning recording transactions should be tantamount to writing transactions directly onto Ethereum. Optimism is currently the third-largest rollup network in terms of transaction volume, with $950 million in total deposits, according to DefiLlama. The chain’s technology also powers the second and fourth-largest layer-2 networks, Coinbase’s Base network and Blast, a buzzy newcomer to the rollup race.