Downloadable music files authenticated by non-fungible tokens (NFTs); downloadable audio and video recordings featuring movie clips, memes with cartoon characters authenticated by non-fungible tokens (NFTs); downloadable image files containing artwork authenticated by non-fungible tokens (NFTs); downloadable software for minting non-fungible tokens (NFTs); downloadable virtual goods, namely, digital designs and characters, avatars for access and use in online virtual environments; digital med...