A non-fungible token (NFT) is a unit of data stored on a digital ledger, called a blockchain, that certifies a digital asset to be unique and therefore not interchangeable. NFTs can be used to represent items such as photos, videos, audio, and other types of digital files.In FWENCLUB, NFT refers to the unique ownership of a digital asset on the one hand.It also serves as digital certificates of ownership for physical collectibles in a trading card form.