Jixuan, Mithru and myself are working on the following challenge for our midterm:
These are a couple of rough sketches that we came up with in our first meeting:
Idea #1: SMS ATM -
The sender sends money to the receiver and the receiver gets an SMS text with a code that they can punch into the ATM to withdraw currency. The ATM then sends a notification of the withdrawal to the sender.
Idea #2 Blockchain + SMS money exchange.
The issue we are running into right now is that we aren't able to test these hypothesis with an actual user, so we are unaware what are actually realistic.