Digital materials authenticated by non-fungible tokens (NFTs), namely, downloadable multimedia files containing artwork, text, audio, music, and videos; downloadable software for creating, editing, viewing, storing, accessing, broadcasting, trading, sending, receiving, and transferring multimedia files authenticated by non-fungible tokens (NFTs); downloadable software for creating, editing, viewing, storing, accessing, broadcasting, trading, sending, receiving, and transferring audiovisual content authenticated by non-fungible tokens (NFTs); downloadable software for enabling users to electronically create, exchange, store, send, receive, accept, and transmit digital, cryptographic, or non-fungible tokens and assets based on the block chain technology, smart contracts, or decentralized autonomous organizations, none of the foregoing in connection with sports, esports related to athletic competitions, or gaming related to athletic competitions