A Simple Extension of the Hardware Point of Sale

The er alen posthing is the hardware point of sale. It generates a four digit pin when you input an amount and press the hash tag. The server can then, using the p o s idee, which is also in the url, can locate the key to check if the payment has been paid. And it's just a way of verifying payments. Someone can walk round cepting bickin payments on hardware device, t be completely off line, and then verify that the payments are going thogh thes no way they can get that forde, japin.