Imagine a bank robbery and the robbers demand the tellers issue a bank draft / certified check to the robbers actual name.
At the end of the robbery the bank has, a serial number of the check, the payer name.
It would be silly to expect this bank to honor this bank draft / certified check. They simply wouldn’t do it.
So the rest of the “we can’t prevent double spend of this bank draft”, is silly. They can verify the payee, pay the draft and cancel the original draft by serial number.
Imagine a bank robbery and the robbers demand the tellers issue a bank draft / certified check to the robbers actual name.
At the end of the robbery the bank has, a serial number of the check, the payer name.
It would be silly to expect this bank to honor this bank draft / certified check. They simply wouldn’t do it.
So the rest of the “we can’t prevent double spend of this bank draft”, is silly. They can verify the payee, pay the draft and cancel the original draft by serial number.