preflight

I was wondering if anybody could say what sort of proof the company wants to see for CA upgrade with respect to the required part 121 time?

Aside from logbook, which seems like it should be enough, would a print out from former airline CrewTrac be OK? How about printout or PDF of FLICA Expense report/Flight Log? For those who have been through the class, was there a preferred or least pain format that everybody was happy with insofar as meeting the 1000 hour threshold?

Thanks