A non-fungible token (NFT) is a unique and irreplaceable unit of data stored in a digital record (blockchain). NFTs can be used to represent easily reproducible items such as photos, videos, audio, and other types of digital files as unique items (similar to a Certificate of Authenticity), using blockchain technology to create a public and verified proof of ownership. Copying the original file is not limited to the owner of the NFT, and it can be copied and shared like any file. These tokens are distinguished from other cryptocurrencies such as Bitcoin and Ethereum in that they are not exchangeable