QR Code on Client Display and confirmation of payment

Is it possible to display a QR Code on the Client display? The Client can then just scan the QR Code and payment is excecated. 

The idea is that when the transaction is complete and the client must pay the QR Code show on the Client Display. The client then scan this code, with the price to pay already in the code, client then press ok or pay and the transaction is excecated. Way must then be developed for the cashier to get proof that payment was indeed excecated and received? 

Anything like this in Aronium?