# Security & Compliance

* **No PII on-chain** → only commitments, timestamps, epochs.
* **Revocation model**
  * Sanctions → epoch increments.
  * Risk score → leaf updates.
  * KYC → re-run required after expiry window.
* **Auditability** → regulators can resolve `midnight_ref` for historical proof.
* **Trust anchor** → Fairway signature ensures integrity.

{% hint style="danger" %}
Never leak raw jurisdiction names or document types in leaves. Use codes (ISO country, KYC level integers).
{% endhint %}


---

# Agent Instructions: 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:

```
GET https://docs.fairway.global/developers/build-on-cardano/merkle-compliance-utxo/security-and-compliance.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.