You can always retroactively sign. Or it would require secretive hardware managed by some centralized authority, and would be exploitable by at least nation state actors.
Not true. This is something I had researched in the early days. If you can store a crypto hash of the document on a Blockchain, you can upload said document anywhere you want for people to DL. The hashes will always match, and you can use the timestamp of the Blockchain entry as reference to veracity. This could be done via an open source project and should the maintainers fall off the map, some one can always fork.
I remember seeing this listed as something like “proof of existence”.
It would require a centralized authority to work in any meaningful way.
Not really
You can publish public keys and sign the videos with private keys
It still doesn’t prove the video is not AI, just that it comes from a specific source, like a press camera
You can always retroactively sign. Or it would require secretive hardware managed by some centralized authority, and would be exploitable by at least nation state actors.
Not true. This is something I had researched in the early days. If you can store a crypto hash of the document on a Blockchain, you can upload said document anywhere you want for people to DL. The hashes will always match, and you can use the timestamp of the Blockchain entry as reference to veracity. This could be done via an open source project and should the maintainers fall off the map, some one can always fork.
I remember seeing this listed as something like “proof of existence”.