42 Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; Authentication of data in the field of real property, real assets, and digital assets transfers using blockchain technology; Providing temporary use of on-line nondownloadable software for accessing, reading, and tracking information in the field of real property and real asset transfers on a blockchain; Providing on-line non-downloadable computer programs and computer software for electronic transfer of digital tokens; providing on-line nondownloadable computer software for use as a digital token wallet; providing on-line non-downloadable computer software for enabling users to electronically create, exchange, store, send, receive, accept, and transmit digital tokens based on the blockchain technology; providing online non-downloadable computer software for enabling users to exchange digital tokens for data; providing online non-downloadable computer software for creating digital tokens using blockchain technology to facilitate the transfer of data between users, to allow users to post digital content, and to allow users to view digital content; platform as a service (PAAS) featuring computer software platforms using blockchain and distributed ledger technology for authenticating and processing digital tokens; non-fungible tokens used with blockchain technology, nonfungible tokens used with blockchain technology to represent real property, non-fungible tokens used with blockchain technology to represent a license, non-fungible tokens used with blockchain technology for data storage and content access limitation; Software as a service (SaaS) featuring software to negotiate agreements, and obtain automated escrow services for their transactions; Platform as a Service (PaaS) services featuring software to negotiate agreements, and obtain automated escrow services for their transactions; Maintaining escrow accounts for supporting execution of purchases and sales of non-fungible tokens (NFTs); platform as a service (PAAS) featuring computer software platforms for users to contribute, edit, view, store, access, download, broadcast, trade, send, receive, and transfer non-fungible tokens (NFTs) and fungible tokens; Providing a web site featuring technology that enables users to contribute, edit, view, store, access, download, broadcast, trade, send, receive, and transfer nonfungible tokens (NFTs) and fungible tokens