It's an actual published paper you can read, not something KSR made up.
That said, I think my question is pretty basic and easy to anticipate, so I was disappointed I couldn't find it addressed in (relatively) simple terms.
As far as it being a "published" paper, my recollection is that it looked like the paper was self-published. I could be wrong about the self-publishing thing, but as far as I'm aware it's not published by any kind of reputable academic journal.