42 Development of computer software; Computer software design; Computer software design; Computer services, namely, Computer software integration; Computer services, namely, Computer software configuration; Computer programming; Maintenance and updating of computer software; Computer software (updating of -); 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 following fields: Packaging of goods, Warehousing goods, Transport of goods, supply of goods, delivering of goods, Management of storage space, tracking of goods, Supply chain management; none of the aforementioned services, in relation to the following fields: music, podcasts or Leisure activities and entertainment