You’ll need to scan a valid ID, such as a Passport, Driver’s License, or other Government-issued ID using your webcam or smartphone camera.
Some IDs, such as Driver’s Licenses, will need to be plastic cards in order to be properly recognized. This is to reduce fraud and, most importantly, to fulfill security standards.
Note that the entirety of the ID needs to be visible, and that the ID you’re using for verification must be an original - photocopies are not acceptable.