Start by filling in the top part of the canvas – the problem you are trying to solve (for the customer with your product) and the solution which you are going to test (your product which resolves the customer’s problem).
Note: if you want to build a few prototypes to test different solutions for the same problem or to test solutions to more than one problem – you should fill each of the canvas separately.
Use your POV statement or an aspect of it (a more granular problem) to fill in this part. Remember about formulating the problem in a concise and focused way, so that everyone is on the same page.
What product are you going to build to address the problem you just defined? Is it a process? A service? What is the solution you are testing?