When you join your course’s Signature Track, you will use your Signature Profile to link your identity to each piece of graded coursework you submit for your course. By doing this, you earn a Verified Certificate from the participating university and from Coursera if you successfully complete the course.
A course’s Signature Track has the same course format and content as the free regular track. You will have the same amount of coursework and the same deadlines. You can still fully participate in the regular course if you decide not to join, and you can still receive the standard Statement of Accomplishment.
See upcoming eligible courses here