42 Software as a service [SaaS] for use in video files verification, certification, authentication and protection; certification and authentication of videos, audios, graphics and data; creation and development of computer programs, downloadable software and software applications [apps]; authentication services on the internet and in the field of electronic media, in particular in connection with video transmission; software as a service [SaaS] featuring software to create a certificate of authenticity for video files; software as a service [SaaS] featuring software to check a certificate of authenticity for video files; software as a service [SaaS] featuring software to upload, download and exchange files, to transmit data, graphics, audio and/or video; technical and scientific consultancy services relating to computer hardware and software; encryption, decryption and authentication of video files, information messages and data; maintaining databases; hosting of databases; software design; software development, programming and implementation