Announcements

• Respect people’s privacy
• Interaction and asking questions are encouraged
• Chatham House Rules
• Join our Telegram group (https://t.me/BitcoinAustin) QR or Sphinx Chat
• Bitcoiner Jobs
• Des Femmes Mentorship Program
• Base58 summer series

Research

• Just in time: XOnly pubkeys
• Half aggregated signatures (Why it breaks adaptor signatures)
• TxWithold smart contracts

Stack exchange questions

• Is key-path only okay in taproot?
• Why does failed OP_CHECKSIGADD not just add 0
• How to determine output type from input data only

Notable Code Updates

• bitcoin-s taproot
• bitcoin-s musig
• regtest package relay
• Fedimint can receive lightning payments

Bitcoin Core

• glozow becomes maintainer
• Pieter Wuille steps down
• Prevent block index fingerprinting by sending additional getheaders messages
• Multsig labyrinth guide

Lightning

• 0 conf lightning channels
• Tunnel sats

Projects

• Nostr voice chat
• Bullrun
• Fedimint
• Validated Lightning Signer (VLS) broker by Sphinx