Right, and we use that number to talk to the issuer. Is this good information for us to allow the transaction? It comes through us by the 16-digit number, we pass it to the issuer—that's your bank, which knows you—that information passes and it says, “Yes, and he has the money.” Then we pass it back to the inquiring merchant to say, “Yes, they have the money; go ahead and do the transaction.” Then we pass the amounts back through to the issuer.
The thing that passes that helps us to make a transaction work is the 16-digit number, and that's the data we use.