No, in this case I have no interest in pursuing that.
What do you think arXiv is?
A "free distribution service and an open-access archive for nearly 2.4 million scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics."
Yes, it's train to legally archive all the journal articles. It's not just a random PDF upload site.