Online retail store services featuring downloadable digital files, file-types and codices in the nature of digital art, music and crypto collectables in the nature of downloadable image files of modern art in the formats of jpg, png, gif, wav, mp3 and mp4 files authenticated by non-fungible tokens (NFTs) and using smart contracts to facilitate the sale and purchase of goods and services; Providing an online marketplace for buyers and sellers of goods authenticated by non-fungible tokens (NFTs...