A non-fungible token, or NFT, is a type of digital asset that is unique and cannot be replicated. It is a way of representing a unique item, such as a digital collectible, a virtual property, or a piece of art, on the blockchain. Unlike other cryptocurrencies, such as Bitcoin and Ethereum, which are interchangeable and divisible, NFTs are each unique and have their own distinct characteristics. This makes them suitable for representing items that are unique and cannot be replicated, such as digital art or virtual real estate. NFTs are commonly created on blockchain platforms, such as Ethereum, and they are often used to create and manage decentralized marketplaces for unique digital assets. For more information, see Vault12's article about NFTs.