An article in Doug Belshaw’s blog – http://dougbelshaw.com/blog/2016/03/09/open-badges-evidence/
«The claim I/we often make about Open Badges is that, unlike LinkedIn profiles or CV’s, they’re a bunch of evidence rather than a bunch of claims. I think we mean a couple of things by that.
First, we mean that we’ve got something to show for the experience we claimed to have had. In other words, even if the badge issuer doesn’t use the (optional) ‘evidence’ metadata field, there is still some kind of social proof to back up our claims.»