Whitepaper looks solid and academic.
No idea what the status is or how can I buy or something.
Fair launch is linked to a page with a link to twitter?
After you click "Fair Launch" look below the X/Twitter link, there is a box with text, the word "released" is highlighted in blue indicating is a hyperlink, click that hyperlink, it will take you to the github parent directory, from there select the "exana" repository then select "Releases" from the right-hand side.
They really need to update their OP with a link directly to the repo, but they are probably trying to keep as few people from getting in at first so they can mine on low difficulty, really the only reason I can think of to make it a maze for people to find your downloads...