# NFTs A **non-fungible token** (**NFT**) is a unit of data stored on a digital [ledger](https://en.wikipedia.org/wiki/Ledger), called a [blockchain](https://en.wikipedia.org/wiki/Blockchain), that certifies a [digital asset](https://en.wikipedia.org/wiki/Digital_asset) to be unique and therefore not interchangeable.[\[1\]](https://en.wikipedia.org/wiki/Non-fungible_token#cite_note-:32-1) NFTs can be used to represent items such as photos, videos, audio, and other types of digital files. Access to any copy of the original file, however, is not restricted to the buyer of the NFT. While copies of these digital items are available for anyone to obtain, NFTs are tracked on blockchains to provide the owner with a proof of [ownership](https://en.wikipedia.org/wiki/Ownership) that is separate from [copyright](https://en.wikipedia.org/wiki/Copyright). --- # 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.horaos.com/structure/nfts.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.