Originally Posted by
mcluving
... i need to find a way to prove its validity.
No, you don't.
Originally Posted by
mcluving
PLUS i am going to be interviewing with a regional in 2-3 months, and i heard they do review the last 90 days of the logbook which is right now.
The regional will review your logbook, but that does NOT mean that the company will be calling the FAA, former owners, former operators, former students, former rental facilities, et al, to ask if your cited flight time is real. They don't do that.
The person who reviews your logbook may look to see if the time in your log is what you've advertised on your job application and resume, and the person reviewing your log will look in general to see if the time looks correct, perhaps note what kind of variety your background holds, and will move on.
If you've got a few hours in a friends airplane, surrounded by many more hours of instructing, nobody cares about the time you flew in your friends airplane.
Nobody is going to check, or ask you to prove it, either.