The challenge of your solution is that these situations are those that most deeply need anonymity.
You want proof of the veracity of the audio or visual evidence but the person(s) taking it and getting it out to public view desperately need to not be identified. Or at least they can't be connected to any network while collecting evidence (i.e. video of something unseemly happening in China/Somalia/DRC).
Deepfakes are a very hard problem and solely technical solutions are unlikely. A mix of context, reputation of the recording provider, and technical analysis is far more likely to be the right approach than any flavor of the month technology, be it block*, Erlang, Rust, or capsules.
You want proof of the veracity of the audio or visual evidence but the person(s) taking it and getting it out to public view desperately need to not be identified. Or at least they can't be connected to any network while collecting evidence (i.e. video of something unseemly happening in China/Somalia/DRC).
Deepfakes are a very hard problem and solely technical solutions are unlikely. A mix of context, reputation of the recording provider, and technical analysis is far more likely to be the right approach than any flavor of the month technology, be it block*, Erlang, Rust, or capsules.