Your second observation regarding time stamps is something I’m really interested in. The broader topic is provenance: the ability to say “this AV stream came f

Your second observation regarding time stamps is something I’m really interested in. The broader topic is provenance: the ability to say “this AV stream came from this device at this time.” I just wrote a post echoing KirinDave’s idea but perhaps expanding the scope in this thread: https://news.ycombinator.com/item?id=21526278 https://news.ycombinator.com/item?id=21526278 The more verifiable pieces of data that you can associate with a recording, the more you can trust that it came from when/who it claims to. If I send a recording that can be tied to: - a timestamp service with my request for one stored in a blockchain, - a tamper-evident device that signs the data with its own private key, - my own private key then you can have a high degree of certainty that I am the one who recorded and sent the content and that it has not been altered. I could still be tied to a chair while a voice actor impersonates me and forces me to send it. This is after all basically the modern equivalent of a proof-of-life photo with the kidnapped victim holding today’s newspaper. But it’s a lot more effort for someone to go through compared to having none of those other guarantees. It’s a fascinating topic that will only become more relevant as deepfaking gets easier. Whoever makes the first device/system to do this, if it’s not a flawed premise, will make a pretty penny.