After you pay someone in DRK, is there a way to prove that you payed?
Yes, the receiver generates an address just for you. You transfer monies to that address. The blockchain shows that monies have been transferred to that address.
I thought the blockchain was hidden.
It's not hidden, but the transactions are so scrambled that you can't tell where the coins have originally originated from. But you can see how many coins an address has, and when it got them.
Sorry for noob questions.
Don't be, the harsh response trolls are getting shouldn't shy people away from asking genuine questions.