It's an interesting project, although the blockchain incarnation seems to go in a different direction, more akin to social login.

While I congratulate you for your efforts, I can't really see the point of implementing this outside of the browser as anything more than a proof of concept. The whole idea is to replace the trust in a web service with the trust into the user agent, I would approach this as specification/standardization work, not something you whip up an electron app for.

The Failsafe work is fascinating, I just discovered it thanks to your link and I'm digging in.