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

# RAILGUN Assurance Suite

RAILGUN has 3 main tools for auditability and assurance: 

* [Viewing Keys](/wiki/learn/wallets-and-keys.md#viewing-keys): Shareable read-only private key for auditability or investigatory purposes
* [Private proofs of Innocence (PPOI)](/wiki/assurance/private-proofs-of-innocence.md): a Zero-Knowledge assurance tool that checks that tokens moving through RAILGUN do not originate from a known list of malicious activity. This is achieved via the use of cryptographic proofs, which keeps RAILGUN users’ data private.
* [Koinly Tax Exports](/wiki/assurance/koinly-tax-exports.md): Easy file exports for use in the Koinly tax software