· May 18, 2026 · 1 min L1 / L2 Layer 1 / Layer 2. L1 is the base blockchain (Ethereum, Solana, Bitcoin). L2 is a scaling layer built on top (Arbitrum, Optimism, Base, the Lightning Network). Aryan Patel
· May 18, 2026 · 1 min Rollup A Layer 2 scaling technique that bundles many transactions off-chain and posts a compressed proof to L1. Aryan Patel