Colour me grey on Identity but I don't believe people have fully understood why technocratic solutions will never succeed. In few words, people will let you have some biometrics or numbers, but they won't put their actual real living identity, their personality, into your product until you've elevated to a sufficiently high level of trust that you won't ever ever EVER abuse that trust.

Which pretty much wipes the floor with any standard product and standard corporation. Blockchain might appear to say something special, but actually it does things like remove the need for trust, not increase the trust to levels where you actually feel confident in telling it your life's secret. Nice spirit, but wrong direction.

That all said, I've written down lots on this topic On Identity elsewhere so I'll stop polluting your post with the naysaying of this poor Identity :-)