[This is actually a reply to biophil's post above with the whitepaper link. Steemit wasn't displaying a "Reply" link below biophil's post (a bug?) so I'm just replying to my own parent reply. Edit: I think the reason the "Reply" link was missing was because I upvoted biophil's post.]

Thanks for the link to the whitepaper @biophil, I've downloaded it and will read it in a few hours.