We will start with introductions, some basic ground rules, and jump into technical discussions. We will cover aspects of the bitcoin protocol, new research developments, recent news, and software developments.

Please note the meeting location at Crafty Beer, Wine, and Spirits near Five Points.

Announcements

• no pictures or recordings
• chatham house rules
• don’t be a dick
• Freedom Tech Workshop - AI for Digital Sovereignty - July 18th 6pm @ The Loading Dock on Whitacre Mill
• thank you to our sponsors Lolli and Swan Bitcoin
• introductions

Bitcoin

• Bitcoin Core 27.1
• Detailed technical writeup on silent payments

Lightning

• Strike launches BOLT12 playground docker stack
• Phoenix Wallet adds BOLT12 support!

Mining

• Block’s first ASIC customer

Ecash

• GNU Taler
• Blinded Auth Tokens are happening at Mutiny and have been used for years at Google

Security

• LND DoS vulnerability disclosure
• Bitcoin Core introduces a new policy for publishing security vulnerabilities. Check the PR on github or the advisories on bitcoincore.org
• Wasabi Wallet Security Incident
• Mutiny Wallet’s fedimint service providers got rugged by a DNS provider. Oof! Fortunately they released a hotfix today.

Privacy

• joinstr v0.1.0 release

Rollups

• Burak’s at it again! Brollups is a new rollup design based on vTXOs.
• Recommended reading: John Light’s 2022 report on validity rollups

Miscellaneous

• Vojtěch Strnad explains all the easter eggs he included in this insane transaction. He also shared the source code