# Authentication **GHOSTS are real, and they're in your house.** They're also in your phone. *Creepy!* ## NFC Technology Each physical GHOST has a non-removable, embedded NFC chip on the underside of the ashtray. Each chip is encrypted, and has a key-value pair stored within our database to ensure authenticity of each piece. This means the data on the chip cannot simply be replicated on another chip to false authenticity. Once a chip has been written, it cannot be overwritten. In the future, we will allow third parties to also provide authentication methods, allowing for GHOSTS to be authenticated by trusted entities other than MIDNIGHT. --- # 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.midnight.art/ghosts/authentication.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.