When you click the “bake” button next to a badge, the information about what you did to earn the badge is digitally embedded in the image, which is then made available for you to download. Once you’ve saved the image and re-posted it to your digital backpack, you can make it available in a way that offers proof that it’s really yours.
For now, the backpack is your best resource. As you can see from the example, clicking on a badge gives you all of the underlying details embedded in the image, as well as links to pages that let the reader know what it’s for, and to prove that you’ve earned it.
The backpack lets you organize your badges into groups of one or more, then publish them so that you can send anyone that’s interested — a potential employer, your mom — or Tweet them.