Ethereum Layer 2

Architecture

Ethereum Layer 2 solutions represent a fundamental shift in scaling the Ethereum blockchain, moving transaction processing off-chain to enhance throughput and reduce costs. These systems, encompassing technologies like optimistic rollups and zero-knowledge rollups, operate as separate blockchains interacting with Ethereum’s mainnet for data availability and security. Consequently, they enable a higher transaction capacity while leveraging Ethereum’s established consensus mechanism, addressing limitations inherent in the base layer’s scalability. The design choices within each Layer 2 impact factors such as withdrawal times, computational complexity, and overall security assumptions, influencing their suitability for diverse applications.