SLP400 Jonas Nick & Tim Ruffing - Half Signature Aggregation: What is it and how does it help scale Bitcoin?

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

Links:

• Twitter: @n1ckler


• Twitter: @real_or_random


• Blog post: Half-Aggregation of BIP 340 Signatures


• CISA github: Cross-Input Signature Aggregation (CISA)


• Half aggregation: Half-Aggregation of BIP 340 signatures

Previous Episodes

• 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

Sponsors

• Swan Bitcoin


• Braiins.com


• Voltage


• Unchained Capital (code LIVERA)


• CoinKite.com(code LIVERA)

Stephan Livera links:

• Show notes and website


• Follow me on Twitter @stephanlivera


• Subscribe to the podcast


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