Comment by scubbo

I see blockchain-verification hype all over the place, and no-one's ever been able to convince me of how it would actually work in situations like this. Could you elaborate? How would you differentiate between "a 'legitimate' video that has been taken by a camera" and "a video that has been edited, and then had its provenance metadata edited to look like it is raw"? Given that there cannot possibly be any consensus protocol that verifies that "data I created myself" is legitimate, how can you prove that anything isn't legitimate?