[panagathon]

Sure you can. You simply email one of the listed authors and ask them if the document is legit.

[jonas21]

And if they say "yes, it is legit", what does that tell you?

[readyman]

That the author has risked their reputation on the claim. If you're doubting the author is legit, interrogate their professional associations with an internet search, relying on the domain name system.

Nothing about any of this is new or profound. Counterfeit documents have been around for hundreds of years.

[StableAlkyne]

There's a certain point where this line of thought just becomes an AI-themed rehash of "Trusting Trust" by Thompson