Episode 75: Multisig (And Musig)
from Bitcoin, Explained — The Technical Side of Bitcoin
In this episode of Bitcoin, Explained, Aaron and Sjors discuss multi-signature (multisig), and the various ways that Bitcoin enables multisig; from bare multisig, to P2SH, SegWit, Taproot, and finally Musig, as well as some potential future solutions. Chapters 00:00:00 Introduction and listener support 00:02:41 What multisig is and why use it 00:06:43 Bare multisig and signature-checking limits 00:17:23 P2SH multisig: fees, privacy and script limits 00:22:23 SegWit multisig and the sigops discount 00:27:42 Taproot multisig with OP_CHECKSIGADD 00:33:21 Large multisigs and the stack size limit 00:38:08 Combining multisig scripts in Taproot trees 00:39:50 MuSig2, key aggregation and threshold signatures Episode Sponsor: https://voltage.cloud/ Sjors New Book: https://www.amazon.com/Bitcoin-Technical-innovations-Sjors-Provoost/dp/9090360425
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Chapters
- 0:00 Introduction and listener support
- 2:41 What multisig is and why use it
- 6:43 Bare multisig and signature-checking limits
- 17:23 P2SH multisig: fees, privacy and script limits
- 22:23 SegWit multisig and the sigops discount
- 27:42 Taproot multisig with OP_CHECKSIGADD
- 33:21 Large multisigs and the stack size limit
- 38:08 Combining multisig scripts in Taproot trees
- 39:50 MuSig2, key aggregation and threshold signatures
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