The ERC-721 standard also defines just how a token could be stored and utilized. A token could be stored as a string (i.e. String-type token), as a mapping (i.e. Mapping-type token) or as a selection (in other words. Array-type token). What exactly is a Non-Fungible Token and Just what Does It Mean for the Economy. Non-fungible tokens are comparable tokens, nevertheless they don't have any...