Draw knives work well on a log or longer piece than what it looks like you have. The chisel or pry bar method will probably work best for your situation. I am under the understanding that wood cut in the summer loses its bark easier as the layer is filled with sap, winter cut wood, the sap is down/gone thus the bark is tighter to the tree/wood. That is why I was always told to get wood harvested in the winter for natural edge bowls.
Honestly you are probably going to split that quite a few times to get to the piece you want, it might not have any bark on it by the time you get to it.
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