What Are 'Rollups' (Optimistic and ZK) and How Do They Use Batching? ⎊ Path

What Are ‘Rollups’ (Optimistic and ZK) and How Do They Use Batching?

Rollups are Layer 2 scaling solutions that execute transactions off-chain and then batch them into a single transaction that is posted to the Layer 1 chain. Optimistic Rollups assume transactions are valid and use a fraud proof period.

ZK-Rollups use cryptographic validity proofs (Zero-Knowledge proofs) to instantly prove the batch's correctness.

How Do ZK-Rollups Improve Transaction Throughput on Ethereum?

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

What Is the Fundamental Difference between Optimistic Rollups and ZK-Rollups?

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

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

How Does a “Validity Proof” Differ from a “Fraud Proof” in the Context of Blockchain Finality?

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

How Does ‘Layer 2 Scaling’ Fundamentally Differ from ‘Layer 1 Scaling’?

Glossar

Validity Proofs

Cryptographic Integrity Check ⎊ The mathematical process by which receivers verify that a block or transaction has not been altered in transit or storage, relying on hashing and digital signatures.

Optimistic Rollups

Scalability ⎊ Optimistic Rollups represent a Layer 2 scaling solution for Ethereum, designed to enhance transaction throughput and reduce associated gas fees without compromising decentralization.