Here's a profiled on Hartman courtesy of The Cannon:
I first took notice of Hartman at the World Juniors, where he stood out to me as a rough-and-tumble forward who could chip in with a little bit of scoring. I really started to like this kid at the Top Prospects Game in Halifax in January. Moments into the game he absolutely rocked Laurent Dauphin, bringing the crowd to its feet. He went on to dish out more hits, and showed that he could be dangerous around the net.