Yes, BSV is Calvins method of laundering his illegal sportsbook cash. Primarily via the investments into mining / nchain / etc (take dirty cash, buy miners with it, and now you have a 'legit' tech company to extract the cash from it now cleaned).
The dynamic between CSW and Calvin in very interesting.....CSW undoubtedly thinks Calvin is just another one of his victims....but Calvin knows the ruse and encourages it. When the time comes, Calvin will throw his hands up and play the victim and Creg will be trotted off to jail.