> 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="/files/BABIXUcfih4hhIp9J7pC" alt=""><figcaption><p>ZKrollup</p></figcaption></figure>

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