Aka Non-Fungible Token.
Fungibility refers to an object's ability to be exchanged for another of equal value.
NFT's are a type of token that are considered to be unique digital assets that have no equal token.
Digital artwork is currently the most popular form of NFT.
Crypto Punks are one of the first NFTs that were sold on the market. When they were initially introduced, only 10,000 were created, thus establishing a scarcity to the object. A crypto punk in essence is a person smoking a pipe - it’s honestly not much more than that. Crypto Punks are only on the Ethereum network.