> For the complete documentation index, see [llms.txt](https://docs.notcentralised.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.notcentralised.com/circuits.md).

# Circuits

The infrastructure depends on five  [zkSNARK](https://en.wikipedia.org/wiki/Non-interactive_zero-knowledge_proof) circuits - `DataVerifier`, `HashApprover`, `HashMinCommitment`, `HashReceiver`, and `HashSender` to maintain data integrity and secure verification in the ecosystem.