Housekeeping

• This meetup is generously sponsored by Galoy
• our meetups focus solely on Bitcoin. We do not welcome discussions about Web3 or any other “crypto” projects at our events. If you are interested in crypto discussions there are a number of other meetups to join.
• Please give your attention to the presenters during the seminar and keep side conversations to zero.
• Questions are encouraged, including basic ones!
• Socratic Seminars are held under the Chatham House Rule: share the information you receive, but do not reveal the identity of who said it.
• For the privacy of other attendees, please refrain from taking photographs of other people without their permission.
• Socratic seminars are best when the moderator can let the conversation flow, so try to keep things concrete and focused.

Chain Weather Report

• Clark Moody Dashboard
• Mempool
• Block Fee Rates
• Block Rewards 1m

Discussion

Tweets & Blogs

• Coinbase supports P2TR
• Spark from Lightspark
• Nodeless Lightning from Breez
• Second team demos mainnet Ark txs
• Bitcoin Fog User Roman Sterlingov Gets 12.5 Years for Allegedly Running It Based on ‘Junk Science’
• Tornado Cash Dev Denied Appeal
• Security / cost tradeoff
• Analyzing Bitcoin Consensus: Risks in Protocol Upgrades
• BOLT12 added to Lightning Specification
• Payment censorship in the lightning network despite encrypted communication
• Bhutan quietly mines thousands of BTC
• DATUM, incentivizing the decentralization of mining

Disclosures & Advisories

• Disclosure of hindered block propagation due to mutated blocks in Core version < 25.0
• Disclosure of DoS due to inv-to-send sets growing too large in Core version < 25.0
• Disclosure of remotely crashing Bitcoin Core nodes by triggering an assertion in the blocktxn message handling logic in Core version < 25.0
• Disclosure of FindAndDelete bug in btcd version < 0.24.2