[tshaddox]

Yeah, I think that “blueprint” or “plans” works pretty well, especially if you think about it like the plans for a weapon (say, an advanced airplane) that one country wants to keep a secret so that other countries can’t figure out how to build the same weapon. The other countries will be able to see the airplane, they may even get their hands on one of them, but you definitely don’t want them to get their hands on the plans.