Rollup Architecture Trade-Offs

Architecture

Rollup architecture fundamentally alters the computational and data availability landscape for layer-2 scaling solutions, impacting transaction throughput and cost. Trade-offs center on the choice between optimistic and zero-knowledge (ZK) rollups, each presenting distinct security and scalability profiles. Optimistic rollups prioritize immediate finality but introduce a fraud-proof window, requiring dispute resolution mechanisms, while ZK-rollups offer cryptographic validity proofs, enhancing security but demanding substantial computational resources for proof generation.