41 Providing on-line non-downloadable music files authenticated by non-fungible tokens (NFTs); providing on-line non-downloadable audio recordings authenticated by non-fungible tokens (NFTs) all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments; providing on-line non-downloadable multimedia file containing artwork authenticated by non-fungible tokens (NFTs); providing on-line non-downloadablemultimedia file containing text all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by non-fungible tokens (NFTs); providing on-line non-downloadablemultimedia file containing audio all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by non-fungible tokens (NFTs); providing on-line non-downloadablemultimedia file containing video all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by non- fungible tokens (NFTs); providing on-line non-downloadablevideo recordings all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by non- fungible tokens (NFTs); providing on-line nondownloadable audio and video recordings all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by non-fungible tokens (NFTs); providing on-line non-downloadable image files all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by nonfungible tokens (NFTs); providing on-line non-downloadablemultimedia file containing artwork, text, audio, and video all being in field of sports, entertainment, special events, contests, moments in time being newsworthy, historic moments authenticated by non-fungible tokens (NFTs)