that's possible, I haven't read a lot on Krohna but he was trying to prove it was the hand of the creator of the universe, so unless they said it belonged to the anti-monitor somewhere I'm going to assume it was supposed to be the hand of an actual god like being.
this actually is all about how you define god...from the popular christian sense, no. In the DC universe the only creature that might be a god in that sense is the owner of the hand we see creating the universe in the green lantern books.
@CF12793: Well here is the thing, its not memory what makes someone smart. Its noticing the importance of different things. Batman being a detective is very astute and can really see variances, and pics up on the little details. So while bane may remember everything, he may not be able to use that memory as well as Batman simply cause Batman through training and practice knows what to look out for.