> ## Documentation Index
> Fetch the complete documentation index at: https://docs.etrnl.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Rules

For the safety and protection of our customer's (and your customer's information), we have to lay down some ground rules.

<div align="center">
  ## ⚠️ PLEASE READ CAREFULLY ⚠️

  <br />

  1.) **No authentication of products that did not originate from you.**

  If you bought a luxury clothing item that didn't have an NFC authentication tag in it, you cannot act as a third-party guarantor of authenticity.

  <br />

  2.) **No storing of personal information within a tag's metadata.**

  This does not include unique IDs that point to a user's information in a system outside of ETRNL.

  <br />

  3.) **These tags should not be used to gain access to any highly sensitive information such as medical records, legal documents, or personal information**
</div>

<br />

If you're not sure if your use case is acceptable, please chat with us in our <a href="https://discord.gg/FvNtx5ga8h">Discord Channel</a>.
We're happy to answer any questions and make sure your customers get the best experience.