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

# Identity System

* **Token Burning for Domain Reservation:** Users can burn BNSX tokens to reserve short domains, enhancing security and preventing misuse.
* **NFT Validity:** NFTs acquired during domain registration are perpetual and support secondary market transactions.
* **Annual Registration Fee:** A recurring fee, similar to ENS, ensures the continued use and integrity of registered DIDs. A portion of the fee is utilized for token buybacks and burning.