An NFT is a unique, non-transferable data unit that is stored on a blockchain, a sort of digital ledger that is used to record transactions. Digital assets like photographs, movies, and audio can be linked to NFTs. The NFTs keep the underlying digital files open to sharing and copying so that the public certificate of authenticity or evidence of ownership may be issued.You can buy and sell NFTs, which are units of data that can be traded. The NFT can be linked to a digital or physical asset, as well as to a licence that lets you use that asset for a certain reason. It's possible to buy and sell NFTs on digital markets. They come with the right to use, copy, or show the asset that they're linked to.