> For the complete documentation index, see [llms.txt](https://whitepaper.onchainlandmark.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.onchainlandmark.com/faq/what-is-nft.md).

# What is NFT?

A non-fungible token (NFT) is a unique and non-interchangeable unit of data stored on a blockchain, a form of digital ledger. NFTs can be associated with reproducible digital files such as photos, videos, and audio.