Jonas Nick & Tim Ruffing, bitcoin researchers and contributors at Blockstream rejoin me on the show, this time to chat about half signature aggregation. This is a scaling technique that can help scale Bitcoin and enable more transactions inside a block or help with L2 protocols. We discuss:
- How this idea came to be
- What is half aggregation vs ‘full aggregation’?
- What kind of savings are possible?
- What are the downsides?
- How would this work in practice?
- Is a soft fork required?
- Next steps for discussion, research, contributors
- Twitter: @n1ckler
- Twitter: @real_or_random
- Blog post: Half-Aggregation of BIP 340 Signatures
- CISA github: https://github.com/ElementsProject/cross-input-aggregation
- Half aggregation github: Cross-Input Signature Aggregation (CISA)
- Half aggregation: Half-Aggregation of BIP 340 signatures
- SLP222 Jonas Nick and Tim Ruffing What’s MuSig2? What Does it Mean for Bitcoin Multisig?
- SLP321 On-chain scaling with Bitcoin Core Developers Pieter Wuille, Andrew Poelstra, Andrew Chow & Murch
Stephan Livera links: