ya id open the bitaxe OS page via the IP address for the machine, let the page build up some data on the hashrate (if you close the page, you'll lose the trending data). Then, compare it to what you are seeing on Ocean's page. 24 hour trend would be interesting to see and probably insightful.

As for DATUM, its not too hard with a start9 (ive done it a few times now so happy to help if you go that route).