Okay, call me back when there's worldwide demand for these badges rather than vendor-specific courses that they can then charge you for using their own "custom" solution that they can verify much more closely rather than relying on an (unpaid?) third-party to get it right every time.
And even then, there's nothing stopping any company in the world setting up their own one (a lot of them already have, so you can just log-in and see your completed courses etc).
Additionally, you would then need to prove identity on the web and/or hand off personal details to this project in order for a potential employer to verify that it's YOU that are entitled to those "badges".
This is a problem that doesn't need solving (vendors already have their methods), and produces data protection / identity problems to solve, and requires everyone to jump on board (without a single competing system arising) to solve.