NFT

Non-fungible tokens (NFTs) are fast growing big innovation in the token world.

Unlike other tokens on Ethereum, NFTs are completely unique and not interchangeable with other tokens.

As such, they are used to buy and sell unique digital art, music, and other collectibles, with interesting test-cases in more complex financial products.

They come in two different versions: the original and individually unique ERC 721 token, and ERC 1155, which is a hybrid version used in gaming.