...jy-p (Jake Yocom Piatt) from Decred and jyap (Julian) from bittrex are not the same person
undermines the credibility of your claim, because it is not really known if it indeed is the same person.

They are known people
This is jy-p aka Jake Yocom-Piatt from decred

And this is jyap aka Julian from bittrex

SEC targets DECRED criminal enterprise ran by the Asian mafia connected bittrex phishing scammers touted via the darkweb