Have you seen their Revised Whitepaper yet? Its new now. Come and take a look. You will surely be amazed by the changes they made as well as their official site. Refer to the links below.
Whitepaper:
https://docs.wixstatic.com/ugd/b46aa3_6876d3662e7a4dc6b0732a2d190e0c38.pdfI saw some changes not only in the way they presented the whole concept in the whitepaper but they omitted something too. Check it for yourself.
Oh, good to know that they are having revisions of their whitepaper, meaning they are sorting things out well
and working on it diligently, making adjustments for things to be clearer.