Historic tweet by Jack Dorsey hits $2.5M in digital auction

Abstract

The tweet is being sold as a non-fungible token, or NFT. An NFT is a unique digital token that can turn any item in the digital world from tweets to Gifs, to videos into a collectible asset. Like Bitcoin and other cryptocurrencies, NFTs are sold and bought via the blockchain. Non-fungible tokens verify authenticity and ownership by encrypting the creator's signature on the blockchain.