42 Authentication of data in the field of works of art, financial transactions and music using blockchain technology; Computer graphics design services, namely, creating of 3D images and digital art authenticated by non-fungible tokens (NFTs); Computer security services in the nature of administering digital certificates; Platform as a service (PAAS) featuring computer software platforms for management of digital assets authenticated by non-fungible tokens (NFTs); Providing a secure electronic online system featuring technology which allows the buying, selling, trading, and minting of secure digital assets authenticated by non-fungible tokens (NFTs); Providing a web site featuring technology that enables users to contribute, edit, view, store, access, download, broadcast, trade, send, receive, and transfer digital assets authenticated by non-fungible tokens (NFTs); Providing temporary use of on-line non-downloadable software and applications for creating, editing, viewing, storing, accessing, downloading, broadcasting, trading, sending, receiving, and transferring digital assets authenticated by non-fungible tokens (NFTs); Providing temporary use of on-line non-downloadable software and applications using artificial intelligence for creating, editing, viewing, storing, accessing, downloading, broadcasting, trading, sending, receiving, and transferring digital assets authenticated by non-fungible tokens (NFTs); Providing temporary use of on-line non-downloadable software for accessing, reading, and tracking information in the field of works of art, financial transactions, NFTs, token staking on a blockchain; Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; Recording data for others on optical, digital and magnetic media for electronic storage