I wouldn't say "no reason", I'd just say that it should be self-aware that they are functionally similar to a news website in that they live and die on their re

I wouldn't say "no reason", I'd just say that it should be self-aware that they are functionally similar to a news website in that they live and die on their reputation. The second someone can demonstrate that they've manually misrepresented some archived page they lose nearly all of that credibility. Better than crypto stuff which might not scale well would be to have multiple independent archives run by people with a diversity of political views and nationalities. The authenticity can be easily verified if the same page is archived to a site run by left-wing people in San Francisco and also a site run by right-wing people in London.