Non-fungible tokens (NFTs) were one of the biggest stories in cryptocurrency in 2021. NFTs are blockchain-based digital items whose units are designed to be unique, unlike traditional cryptocurrencies whose units are meant to be interchangeable. NFTs can store data on blockchains — with most NFT projects built on blockchains like Ethereum and Solana — and that data can be associated with images, videos, audio, physical objects, memberships, and countless other developing use cases. NFTs typically give the holder ownership over the data or media the token is associated with, and are commonly bought and sold on ... (full story)