42 Designing and developing virtual reality and augmented reality software; creating and maintaining Internet sites enabling registered users to form virtual communities and engage in social networking services in the field of blockchain technology; providing temporary use of non-downloadable software for social networking, creating a virtual community, and transmitting audio content, video content, 3D content, images, text and data; providing temporary use of non-downloadable software for streaming recreational multimedia content; designing software for computers and mobile communications devices for third parties; providing temporary use of non-downloadable software for facilitating interaction and communications between humans and AI (artificial intelligence) platforms, namely, robots, virtual agents and virtual assistants; providing temporary use of non-downloadable software for sharing and displaying a user's location, planning activities with other users and making recommendations; providing temporary use of non-downloadable software for social mapping and mapping of destinations; providing temporary use of non-downloadable software for creating, managing and accessing user-created and administered private groups within virtual communities; platform as a service (PaaS) featuring software platforms for social networking, managing social network content, creating a virtual community, and transmitting images, audiovisual and video content, 3D content, photographs, videos, data, text, messages, advertisements, media advertising communications and information; providing temporary use of non-downloadable software for ordering and/or purchasing products and services; providing temporary use of non-downloadable software for processing electronic payments; providing temporary use of non-downloadable software for providing a virtual marketplace; providing temporary use of non-downloadable software for transmitting, sharing, receiving, downloading, displaying, interacting with and transferring content, text, visual works, audio works, audiovisual works, literary works, 3D works, virtual reality works, data, files, documents and electronic works; providing an online platform for purchasing and advertising, namely, providing non-downloadable software programs enabling buyers and sellers of online advertising to buy and sell advertising inventories; research and development of new downloadable digital files authenticated by non-fungible tokens [NFTs]; Blockchain as a Service [BaaS]; computer platform as a service [PaaS], providing temporary use of non-downloadable software for use in enabling the development, evaluation, testing and maintenance of mobile software applications for electronic and portable communication devices, namely, mobile phones, smartphones, laptop computers and tablet computers; providing temporary access to non-downloadable software for social networking, creating a virtual community and transmitting virtual reality content and data; providing temporary access to non-downloadable software for social networking, creating a virtual community and transmitting audio content, video content, images, 3D content, text, content and data; computer services in the nature of designing customized electronic profile or homepages for individuals or groups featuring user-defined or specified information, including audio content, video content, images, text, content and data; providing temporary use of non-downloadable software enabling users to transfer and share personal identity data with and among multiple websites; Application service providers (ASPs) featuring software for social networking, social network content management, creating a virtual community, and transmitting images, audiovisual and video content, 3D content, photographs, videos, data, text, messages, advertisements, multimedia advertising communications and information; computer platform as a service (PaaS) featuring software platforms for social networking, managing social networking content, creating a virtual community and transmitting images, audio, audiovisual and video content, 3D content, photographs, videos, data, text, messages, comments, advertisements, multimedia advertising information and communications; providing temporary use of non-downloadable software enabling users to upload, modify and share virtual reality content, augmented reality content, mixed reality content, information, experiences and data; hosting virtual reality and augmented reality content on the Internet; providing user authentication services using single sign-on technology and software for e-commerce transactions; providing user authentication services for electronic fund transfer transactions, by credit and debit card, and by electronic check transactions by means of a single sign-on technology software; providing a non-downloadable application programming interface enabling users to perform e-commerce transactions via the Internet; providing temporary access to non-downloadable software for processing electronic payments; computer platform as a service (PaaS) featuring computer software that enables users to perform commercial and e-commerce transactions; software as a service (SaaS) featuring software for facilitating e-commerce transactions via the Internet and via communications networks; application service provider (ASP) featuring application programming interface (API) software enabling users to conduct e-commerce transactions via the Internet and via communications networks