> For the complete documentation index, see [llms.txt](https://docs.allforone.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.allforone.app/glossary/definitions/smart-contracts/nfts.md). # NFTs A **Non-Fungible Token** (NFT) is a type of digital asset that is unique and cannot be replicated or exchanged on a one-to-one basis. This is in contrast to traditional cryptocurrencies, which are interchangeable and have a uniform value. NFTs are built on blockchain technology using [smart contracts](/glossary/definitions/smart-contracts.md), which allows for the creation and secure transfer of unique digital assets. Each NFT is represented by a digital [token](/glossary/definitions/smart-contracts/tokens.md), which contains information about the asset it represents and its ownership history. This allows for the verification of the authenticity and ownership of the asset. NFTs can be bought and sold on online marketplaces, and their value is determined by factors such as the rarity and perceived value of the asset they represent. NFTs have gained popularity in recent years, particularly in the world of digital art and collectibles. They have also been used to represent other forms of digital content, such as videos, audio recordings, and virtual real estate. Overall, NFTs offer a way to establish ownership and authenticity of digital assets in a secure and verifiable manner. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://docs.allforone.app/glossary/definitions/smart-contracts/nfts.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.