Got QR Hashes via API. Now What?

We are able to request a list of our unique QR hashes from this endpoint: https://api.poap.tech/event/123689/qr-codes. However, we are unsure how to show the user the actual QR code they need to scan to mint the POAP. How do we go from QR Hash to Actual QR Code? Maybe this is a question that reflects some fundamental misunderstanding about how POAPs work, because it seems like it should be obvious but is not to us.