3D printers have ‘fingerprints,’ which could help trace guns, counterfeit goods

Re:3D printers have ‘fingerprints,’ which could help trace g... by function_seven on Saturday October 20, 2018 @04:02PM (#18265128)

You'd be surprised how well a serial number can be recovered even after it's been filed away. The stamping process that imprints each digit affects the metal underneath as well. Even when the physical characters have been filed away, the serial is readable using some advanced techniques[1]