Bitcoin Optech: Newsletter #261 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by Greg Sanders and Bastien Teinturier to discuss Newsletter #261.

News

• Simplified LN closing protocol (1:03)
• LN Summit notes (10:48)

Selected Q&A from Bitcoin Stack Exchange

• How can I manually (on paper) calculate a Bitcoin public key from a private key? (57:18)
• Why are there 17 native segwit versions? (59:43)
• Does `0 OP_CSV` force the spending transaction to signal BIP125 replaceability? (1:03:04)
• How do route hints affect pathfinding? (1:08:23)
• What does it mean that the security of 256-bit ECDSA, and therefore Bitcoin keys, is 128 bits? (1:12:26)

Releases and release candidates

• HWI 2.3.0 (1:15:09)
• LDK 0.0.116 (1:16:37)

Notable code and documentation changes

• Bitcoin Core GUI #740 (1:17:18)