42 Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for providing access to digital marketplaces and auctions; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for downloading, receiving, sending, and storing software, data, links, video files, and image files from the Internet; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for development of non-fungible token (NFT) artwork, virtual goods, and cryptocurrency; Web-based services related to blockchain-based non-fungible tokens (NFTs), namely, providing online non-downloadable software for creating, providing information about, selling, auctioning and trading NFTs; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for providing access to and related to digital art and collectibles, crypto-collectibles, NFTs, application tokens, and digital currencies, namely, for access to digital art and digital collectibles, creating digital art, and receiving and spending cryptocurrency; Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; Providing a web site featuring technology that enables users to create, display, and transfer downloadable digital artwork, virtual goods, namely, digital real estate, furniture, apparel, buildings, and jewelry for use in virtual worlds, and cryptocurrency authenticated by non-fungible token (NFT)