ZK-Rollups

Architecture

ZK-Rollups represent a Layer-2 scaling solution designed to enhance transaction throughput on blockchains like Ethereum. Their architecture fundamentally separates execution from settlement; computations occur off-chain, significantly reducing congestion on the main chain. Subsequently, a succinct cryptographic proof, a zero-knowledge succinct non-interactive argument of knowledge (zk-SNARK) or zk-STARK, validates the off-chain computations before being posted to the main chain. This approach minimizes on-chain data storage and computational burden, enabling substantial scalability improvements while maintaining the security guarantees of the underlying Layer-1.