[YaxelPerez]

I don't think cryptographic authentication will help very much.

It's probably safe to assume that most people susceptible to fake news are computer-illiterate. Or at least, not as technical as the HN crowd. Why would normal people suddenly start listening to some nerd mumbo-jumbo they don't understand?

[ethbro]

Technical knowledge doesn't seem requisite. Only independent verifiability.

In the same way that signing keys are used by infrastructure & many who don't understand the nuances.

[pnloyd]

Ya you could get an end result where your video player included in the videos infos "officially verified by persons x y & z"

[arbie]

What if X, Y, and Z are within your own filter bubble and want you to believe the fake news?