42 Development of computer software; Computer software design; Computer services, namely, Computer software integration; Computer services, namely, Computer software configuration; Computer programming; Maintenance and updating of computer software; Updating of computer software; Maintenance of computer software for internet access; Updating and upgrading of computer software, namely, Updating of computing bugs; Updating of smartphone software; Installation, setting up and maintenance of computer software; Design, updating and maintenance of computer software; Design, development and activation of computer software, namely, Relating to new functions enabling real-time and online acquisition and monitoring of the value and convertibility of the virtual currency; Installation, actualization and maintenance of computer software; Development of computer software applications, in particular enabling the value and convertibility of virtual currencies to be acquired and monitored in real time and online; Providing temporary use of web-based applications, namely, Temporary use of a web-based software application enabling the value and convertibility of virtual currencies to be acquired and monitored in real time and online; Hosting of websites for information, applications, files and computing data; Development of computer application software for multimedia content transmission; Design of computer software in the field of mobile applications and Computer software development in the field of mobile applications; Development of computer programs for processing data; IT services for others, namely, Encryption, decryption and authentication of information, messages and data, namely, implementation of appropriate security measures; Design, development, maintenance and updating of computer software for providing financial platforms enabling the value and convertibility of virtual currencies to be acquired and monitored in real time and online; Design, development, maintenance and updating of downloadable computer software applications for providing financial platforms enabling the value and convertibility of virtual currencies to be acquired and monitored in real time and online; Design, development, maintenance and updating of computer software relating to the real-time and online management and monitoring of virtual currencies; Design, development, maintenance and updating of downloadable computer software applications relating to the real-time and online management and monitoring of virtual currencies; none of the aforementioned services in relation to the fields of Packaging of goods, Warehousing goods, Transport of goods, supply of goods, delivering of goods, Management of storage space, tracking of goods, Supply chain management, music, podcasts or Leisure activities and entertainment