Ya just a few moments ago I went to downloads from the support portal, and after clicking download next to Veeam Availability Suite it took me to a screen that said "Your download will begin in 5 seconds". I couldn't find any checkums. Googling "veeam download checksums" led me here.
*EDIT*: OK I see it here - https://www.veeam.com/data-center-avail ... nload.html
Using the main website instead of the support portal takes you to that page.