05-09-2025, 09:44 AM
ZK Rollups enhance scalability by batching multiple transactions off-chain and generating a succinct zero-knowledge proof that verifies their validity. Instead of executing all transactions on Ethereum’s mainnet, only the proof and minimal data are published on-chain. This drastically reduces gas costs while preserving security since proofs are mathematically verifiable. Unlike Optimistic Rollups, which rely on fraud proofs and challenge periods, ZK Rollups finalize transactions much faster. This makes them ideal for use cases that need low latency, like DeFi and payments. However, generating proofs is computationally expensive, so developer teams focus on specialized proving systems such as zk-SNARKs or zk-STARKs. Over time, hardware acceleration and cryptographic optimizations are expected to reduce costs further, enabling ZK Rollups to become a foundational layer for Ethereum scaling.