# Working with the UUID

{% hint style="success" %}
We issue the UUID so that you can make the core decisions of what to do with duplicate individuals found afterward
{% endhint %}

### The power is in your hands

Once you have a users UUID, you can store it in an internal database and keep track of all duplicated users, as they appear. With the UUID you can then make the decision to block, warn, or allow any user, in the future or in real time!


---

# 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.0xkyc.id/developer-guides/client-or-server-guide/sunscreen-uniquness-verification/working-with-the-uuid.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.