Welcome to the 4th Industrial Revolution (4IR). If you aren't familiar with NFTs, you're not alone. A non-fungible token (NFT or token) is a unique digital certificate registered on a blockchain that is minted and used to record the ownership of a one-of-a-kind asset, digital or real, that has value. Most commonly, NFTs record ownership of digital assets such as photographs, drawings, videos, 3D animations, audio files, and video game items. However, NFTs can also record the ownership of practical assets like physical artwork, real estate, or cars.