A system and method is provided for encoding an identifiable code into the audio content of a motion picture. After a proxy server establishes a secure connection between a client device and a web server, the client device receives the requested sensitive content, which includes an index file that contains a hash value that was generated by the web server. The side walls have a curved shape, whose convexity is oriented towards the outside of the implant; the intermediate wall has a curved shape, whose convexity is oriented towards the outside of the implant such that it does not form any pronounced angles with the supporting side walls.