So what is an Open Badge?

Open digital badges are graphical representations that act as assessment and credentialing mechanisms. They are created, managed and shared online.

Open digital badges capture, promote, and transfer learning that occurs in diverse contexts: in-school, out-of-school, and online. Badges have the potential to transform the value of alternative learning pathways.

The Mozilla Open Badge Infrastructure and Badges for Languages allows earners and issuers to easily collect, share, and display their language badges online.

https://openbadges.org/faq/