I was just making an arbitrary suggestion based on previous work by proofofexistence.com. I didn't suggest it was the only way or the best way forward.

I realize that people all the time try to say "Blockchain would be great for ____" so you're probably a little hypersensitive and I get that, but the suggestion of a blockchain was arbitrary and tangential to the real point of my post, so I don't really feel like getting into it right now.