Downloadable computer game software for gaming machines, namely, slot machines and video lottery terminals; Downloadable computer game software for personal computers and home video game consoles; Downloadable computer game software for virtual environments; Downloadable computer game software for virtual worlds; Downloadable multimedia files containing texts relating to video games authenticated by non-fungible tokens (NFTs); Downloadable multimedia files containing videos featuring performances by pianists authenticated by non-fungible tokens (NFTs); Downloadable multimedia files containing videos relating to video games authenticated by non-fungible tokens (NFTs)