Well I guess it is two tracks. I was just thrown off by the fifth toe!
I have always had cats and I've never really seen them dig. Now they will stick their paws under the cracks in the door to get either a toy they lost, or try to get in/out of said room, but that's not really digging.
I would guarantee that it isn't a domestic cat. That print has five toes, and non-mutated domestic cats have four toes, with the fifth being further up on the leg. Also, kitty prints are not that broad, they're more narrow.
Where do you live, and how big are these tracks? Either measure them...