Light Clients Aren't Dead
summary
Claims a practical light client by shipping a Rust compact block filter node that integrates with Bitcoin Devkit (BDK) and runs on mobile and desktop, syncs from Signet in minutes but faces peer scarcity (only ~10% of listening nodes serve filters) and heavy CPU work from SIPHash. Demonstrates a working desktop and iOS demo, proposes serving undo data to enable fee estimation, silent-payment scanning and filter auditing, and uses compact block filters with BDK integration.
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chapters (17)
- 0:00Introduction
- 1:49Compact block filters
- 3:17P2P network challenges
- 5:27Privacy benefits
- 7:17Advantages over servers
- 8:22Mobile wallet sync demo
- 10:51Optimizing wallet sync
- 14:24Live sync demo
- 15:08Node availability issues
- 17:39Fee estimation limits
- 19:07Auditing filters
- 20:12Undo data role
- 22:42Future improvements
- 26:19Reducing altruism
- 27:43Optimizing index building
- 28:062140 future plans
- 33:53Closing demo
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