Downloadable audio and video recordings featuring various topics, subjects, content, etc. authenticated by non-fungible tokens (NFTs); Downloadable audio recordings featuring various topics, subjects, content, etc. authenticated by non-fungible tokens (NFTs); Downloadable image files containing various topics, subjects, content, etc. authenticated by non-fungible tokens (NFTs); Downloadable multimedia file containing artwork relating to various topics, subjects, content, etc. authenticated by...