> For the complete documentation index, see [llms.txt](https://docs.herodotus.dev/herodotus-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.herodotus.dev/herodotus-docs/scaling-solutions/integrity-verifier.md). # Integrity Verifier ## Overview Integrity is a zero-knowledge proof verifier designed to verify STARK proofs directly within the Cairo Virtual Machine (VM). It enables Layer 3 scalability on Starknet and enhances the capabilities of the entire ecosystem. Integrity was developed in collaboration with [StarkWare](https://starkware.co/). ## Key Features * Verifies STARK proofs generated by the Stone prover * Runs natively in the Cairo VM * Enables efficient Layer 3 solutions on Starknet ## Benefits * Reduces costs for proof verification on rollups * Lowers latency for proof-reliant systems * Enables "fractal scaling" by allowing L3 verification on L2 * Supports innovation for Layer 3s and App-Chains on Starknet ## Collaboration Integrity was developed in collaboration with StarkWare. This partnership combined expertise from both teams to create a powerful and efficient STARK proof verifier for the Starknet ecosystem. ## Getting Started To learn more about Integrity, including detailed implementation instructions, API documentation, and example use cases, please visit our GitHub repository: The repository contains all the necessary information to understand, implement, and contribute to the Integrity project. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.herodotus.dev/herodotus-docs/scaling-solutions/integrity-verifier.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.