PQLN: Post-Quantum Security for the Bitcoin Lightning Network's Off-Chain Surfaces

The issue of QR code density and its practical usability is significant, especially when considering the incorporation of dense information such as invoices into the largest QR format. The concern primarily revolves around whether these densely packed QR codes would consistently scan well across various devices, including older or smaller phone screens and cameras. This challenge raises important questions about the effectiveness of using a single QR code to convey complex or voluminous data.

To address potential scanning issues, exploring user-friendly alternatives becomes essential. These alternatives could include distributing the information through multiple QR codes or opting for different methods of sharing such as text-based formats. The distinction between merely fitting information into a QR code and ensuring it functions reliably for everyday use, like payments, is crucial. This differentiation highlights the need for practical solutions that not only meet technical specifications but also enhance user experience by ensuring reliability and ease of use in everyday scenarios.