There was a plot point in the film, "The Lives of Others," where the East German police keep a registration and fingerprint of all typewriters, and find a docum

There was a plot point in the film, "The Lives of Others," where the East German police keep a registration and fingerprint of all typewriters, and find a document written on an unregistered typewriter. The precedents for machine identity go way back. The only difference is at least here, you don't need a license or registration for a printer, albeit you do in effect for a mobile device. Remember to act surprised.