# 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. --- # 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.bnsx.org/identity-system.md?ask= ``` 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.