> Sounds like an invasion of privacy. Your personal pictures and videos shouldn’t have a unique digital signature so the police or a bad actor can identify whic

> Sounds like an invasion of privacy. Your personal pictures and videos shouldn’t have a unique digital signature so the police or a bad actor can identify which device it was taken on. You've misunderstood the point. The goal is not to identify users. The goal is to sign messages to ensure they were actually outputted by a service.