42 Cloud computing featuring software for use in electronic storage of data; Computer services, namely, cloud hosting provider services; Data encryption and decoding services; Design and development of software in the field of mobile applications; Installation of computer software for cryptocurrency mining; Maintenance and updating of computer software; Platform as a service (PAAS) featuring computer software platforms for cryptocurrency transactions; Providing a web hosting platform for cryptocurrency transactions; Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; Software as a service (SAAS) services featuring software for cryptocurrency transactions; User authentication services using blockchain technology for cryptocurrency staking