ZK-Rollup
Also known as: Zero-Knowledge Rollup, ZK Layer 2, ZK Scaling Solution
A layer 2 scaling solution that uses zero-knowledge proofs to batch transactions securely and efficiently.
ZK-Rollups (Zero-Knowledge Rollups) are Ethereum layer 2 scaling solutions that bundle multiple transactions off-chain and submit a single proof of validity on-chain. They use zero-knowledge cryptographic techniques to ensure data integrity without revealing transaction details. ZK-Rollups reduce gas costs and increase throughput while preserving Ethereum-level security. Unlike optimistic rollups, ZK-Rollups offer faster finality and better privacy. Popular projects include zkSync, StarkNet, and Scroll. They play a critical role in making Ethereum scalable for mass adoption.