How does Coinbase P2P QR code payment work?
Could you please elaborate on the process of how Coinbase's Peer-to-Peer QR code payment functionality operates? Specifically, how does a user generate a QR code, what information does it contain, and how does the recipient of the payment scan and verify the code to complete the transaction? Additionally, are there any security measures in place to ensure the safety of the transaction during this process?