I have done research works for different people, mostly students, even helping out on how to organize them.
I helped in providing them bibliographic information of sources to be used and have also helped in searching information.
Onlinejobs.ph "ID Proof" indicates if "they are who they say they are".
It DOES NOT indicate skill level.
ID Proof scores are 0 - 99 with 99 being the best. It is calculated based on dozens of data points.
It's intended to help employers know who they're talking to is real, and not a fake identity.