I was able to print out a flight log using the company's web application since I was still employed there at the time. If you don't have a company-produced digital or paper record of your foreign airline flights, then you would have to just use your personal logbook. I think the consensus is that if you meet the competitive minimums, they just want to verify your hours are legit somehow. If you weren't qualified for the job, you wouldn't be at the interview.