Summary
TLDR: Optimism is a popular rollup network on Ethereum with $950 million in deposits, powering other layer-2 networks like Coinbase’s Base network and Blast. Recording transactions on Optimism is equivalent to writing them directly onto Ethereum for added security.
Key Points
1. Optimism and similar rollups aim to borrow their security from Ethereum, ensuring that recording transactions is equivalent to writing transactions directly onto the Ethereum blockchain.
2. Optimism is currently the third-largest rollup network in terms of transaction volume, with $950 million in total deposits, according to DefiLlama.
3. The chain’s technology also powers the second and fourth-largest layer-2 networks, Coinbase’s Base network and Blast, a newcomer to the rollup race.