When your course is completed datacamp will give an statement of accomplishment, you can download this and share it.
There are three different ways to check your course is completed.
i. First way is that go to this link
https://learn.datacamp.com/
a) Scroll down to see the courses, which are divided into two categories: In Progress and Completed.
b) Choose Completed.
ii. Second way is that you can also check this from your profile.
a) Select My Account > My Profile from the top-right corner of your screen.
b) Scroll down here you see an option of Completed course. Here you can see the status of your course.
iii. Third way is that statements of accomplishment can also be accessed straight from the course dashboard.