Dooglus, your modified verifier gives different results then rgbkey's version:
You're right. My modified version is for PrimeDice I think. It would need to be changed a little to work with DB.
I think rgbkey's Just-Dice verifier should work for verifying DB rolls though, and can verify many at once:
http://rgbkey.github.io/just-dice/Sorry for the additional confusion!
That one works and gives the same result as rgbkey's one. So far all the bets I checked matched the outcome on dicebitco so for me at least it seems as everything is in order.