depends.. north american hash is the THC crystals (trichromes) on the buds, basically sifted off of the leaves and buds and pressed and oven cooked. so really the sativa or indica percentage will come from the bud that the crystals were sifted from

now i could be completely wrong but i hear a LOT of euros complain that hash sucks, ive heard the words brick hash dropped, and i really dont know anything about that. i suppose it's a lot different than north american hash because NA hash is basically like the crack cocaine form of marijuana. all the purest parts oven pressed for your smoking pleasure. and in no way does that suck!