Layer 2 | KryptoPuls AI
Layer 2 scaling solutions built on top of Layer 1 blockchains to increase throughput and reduce fees. Optimistic Rollups (Arbitrum, Optimism) post transaction data to L1 with fraud proofs; ZK Rollups (zkSync, StarkNet, Polygon zkEVM) use validity proofs for instant finality. Sidechains (Polygon PoS)