Rollup Architectures

Mechanism

Rollup architectures are Layer 2 scaling solutions for blockchains that execute transactions off-chain, bundle them into a single batch, and then submit a cryptographic proof of their validity to the mainnet. This mechanism significantly reduces the computational load on the base layer, increasing transaction throughput and lowering gas fees. Two primary types exist: optimistic rollups and zero-knowledge (ZK) rollups, differing in their proof mechanisms and dispute resolution.