NFT, or non-fungible token, is a unique digital certificate that confirms the originality and exclusive rights to a specific object or work of art. These tokens are stored in a blockchain, which is a decentralized database consisting of a chain of blocks of information distributed across multiple computers worldwide.

Unlike ordinary fungible tokens such as cryptocurrencies, which are identical to each other and can be exchanged, each NFT is unique and cannot be replaced by another. NFTs can represent digital versions of physical assets such as works of art, musical tracks, videos, or even tweets, and they are often used for buying and selling digital content online.

NFT technology gained widespread popularity in 2020 and has since attracted the attention of many artists, musicians, and collectors, although it has also sparked controversy due to issues related to copyright and environmental impact.