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

# Concepts

- [Anonymous Identity](https://zka-protocol.gitbook.io/zka-protocol-docs/concepts/anonymous-identity.md)
- [Encrypted Frames](https://zka-protocol.gitbook.io/zka-protocol-docs/concepts/encrypted-frames.md)
- [ZK Validity](https://zka-protocol.gitbook.io/zka-protocol-docs/concepts/zk-validity.md)
- [Stateless Execution](https://zka-protocol.gitbook.io/zka-protocol-docs/concepts/stateless-execution.md)
- [Privacy Guarantees](https://zka-protocol.gitbook.io/zka-protocol-docs/concepts/privacy-guarantees.md)