"The actual exchange of money is 100x a stronger indicator of health than the presence of a stub."

Real companies with people running them who want to do things on the up and up and who know how to run a successful company want to keep a paper trail of every dollar going in or out the door. This includes having a pay sub with every single paycheck or invoice paid that shows what was paid, how much was paid, why it was paid, and when it was paid. That's How to Business 101.