Differentiate between Optimistic Rollups and ZK-Rollups ▴ Learn

Differentiate between Optimistic Rollups and ZK-Rollups.

Both are Layer 2 scaling solutions. Optimistic Rollups assume transactions are valid by default ("optimistic") and use a fraud proof system, where a time window is allowed for anyone to challenge a fraudulent transaction.

ZK-Rollups (Zero-Knowledge) use cryptographic validity proofs to instantly confirm the correctness of off-chain state transitions, offering faster finality but requiring more complex computation.

What Are the Security Trade-Offs between Optimistic Rollups and ZK-Rollups for Financial Applications?

What Is the Difference between a ZK-Rollup and an Optimistic Rollup?

How Does ‘Data Availability’ Relate to the Security of Both Sharding and Layer 2 Rollups?

What Is the Security Trade-off Associated with the Challenge Period in Optimistic Rollups?