|
|
|
|
|
|
by wenyuanyu
853 days ago
|
|
|
I don't know if I understood correctly. But it might be that the metal pieces in glues are pure random process, and there are no way to reproduce or re-print it again. The metal pieces are then recorded as a key in central database or some sort of AI, just like human fingerprint or retina how are collected and used for authentication??? |
|
|