Silent Payments - BlindBits balance between UX and privacy
I would like to talk about Silent Payments and BlindBit. Silent Payments should be known by now. BlindBit is my software suite that I've created around Silent Payments. It consists of several components: - An indexer - A couple of personal scanner projects of which one, friglet, can also be combined with Sparrow as a drop-in replacement for Frigate - Basic spending wallets (mobile, cli, desktop gui) This software suite has been around for several years. Over the years I have been tackling the UX and privacy problems around Silent Payments from several angles and have been trying to balance the two. This is supposed to be the core of my talk. So it will combine a journey through the UX challenges and how they were tackled in history. How BlindBit has tried new ideas to improve UX and privacy for users. About the title, I'm not sure if it should focus on the "journey to fix SP UX" or simply the "balancing UX vs. privacy" part. No matter the title, the content does not really change in essence. Concepts and Frameworks around Silent Payments (Indexing, Scanning and Spending). In general, what we would like to do, depending on the audience, is: - Do a recap of Silent Payments and the cryptography around it, or at least the basic components of how the keys and outputs are derived - Talk about the scanning issue and how we can tackle it with different approaches: always-on scanning, public high-performance scanning, ad-hoc local scanning on device, and external scanning Several tricks can be used to make scanning more efficient and to improve the UX for users. All angles have trade-offs and would like to show how BlindBit works around those. I held a talk at "le paradigme bitcoin" in Neuchâtel, about BlindBit, and will link the presentations pdf. The talk was directed at a non-technical audience but it conveys what topics can be tackled around BlindBit and Silent Payments. Link to slide deck: https://github.com/setavenger/presentation-le-paradigme-2026/blob/master/deck.pdf