> For the complete documentation index, see [llms.txt](https://docs.etherscale.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.etherscale.xyz/core-concepts/overview-of-rollups/zk-rollups.md).

# ZK Rollups

Zero-Knowledge (ZK) Rollups also process transactions off-chain but use cryptographic proofs (zk-SNARKs) to verify the validity of transactions before posting them on-chain. This method provides faster finality and stronger security guarantees since every batch of transactions is verified cryptographically, ensuring only valid transactions are posted on-chain.

Read more on ZK rollups <https://blog.etherscale.xyz/understanding-zk-rollups-8de50aed746d>

<figure><img src="https://4057671294-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlBlSYK63YPPLZjft68L6%2Fuploads%2FdXn0Pt70FfjcO4HNJBuZ%2Fzk%20Rollup%20Blog_3.png?alt=media&amp;token=823b4161-f793-42e3-bacd-790129c84df9" alt=""><figcaption><p>ZKrollup</p></figcaption></figure>

<br>