Every once in a while some publishes a paper that seeks to prove that N equals NP, but so far none were conclusive. Given that track record and the fact that the all existing evidence points to N unequal NP, I would be very cautious with this paper.

I'm not going to dig into the paper, but I note that the abstract claims a constructive proof. I sort of assume that anyone with such a proof could organize a convincing demonstration by letting a disinterested observer provide a series of random numbers while clicking a stopwatch.