Orange with black spots on top/white belly

by Christopher
(Regina,Sk)

My rabbit, called,Professor Hopz is a rescue of a rescue,-meaning he was abused, saved and then abused again.
He is the best pet I've ever had, and currently he can do four tricks.
He comes only when I whistle, will walk on hind legs, stands on his toes but goes down on command first, before accepting a treat, and does a basic spin around.
He follows me like a lapdog a lot of the time,and cuddles and wakes me in the morn.
I would like to know what kind of bunny he is please, having a most lovely and unusual pattern-thanks Chris