Hmm interesting questions--I don't know the answers but I can say what I did. I didn't list hours; I uploaded a "CV" style document, which my impression is, is just a more extensive resume of the highlights of your academic/practical experiences and positions held. So I didn't list supervisors, contact, or hours, only date timeframes and full or part-time. I'm guessing letters of rec are where they will "verify" your experiences because they ask letter writers to attest to the candidates' experiences. As for length of the resume, I'm out of the loop for "industry standards" but I read somewhere 2 pages or less is decent, so I did that. I did a few sentences for each experience. I went into more detail on a couple of resume items in my essays. Also, I didn't have a cover letter on my CV.