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 Mad Science of the Triangle in Cary.

Announcements

• no pictures or recordings
• chatham house rules
• don’t be a dick
• thank you to our sponsor Lolli
• introductions

Bitcoin

• CardCoins open sources their additive RBF batcher: source code, 2021 blog post
• mempool full RBF enabled by default in bitcoin core
• Introduction to Cluster Linearization
• Testnet4 launched! The design and rationale are explained in BIP94

Lightning

• Taproot Assets v0.4 - first full feature release
• Stable Channels

Ecash

• Fedi main net release. The Fedi announcement comes with a backdated commitment to fully open source the Fedi app
• Boardwalk Cash is a new stable dollar ecash wallet.

Security

• Dark Skippy - writeup of an attack where a malicious signing device firmware can exfiltrate private keys using non-random nonce selection during transaction signing
• read the twitter thread for a TL;DR

Mining

• a bitaxe found a block
• Ocean building their own miner-side template construction mechanism. Not using Stratum V2
• HODLTarantula is planning to launch HT Pool. Don’t like it? GFY

Miscellaneous

• Maelstrom launches a bitcoin grant program
• Proton Wallet - Send bitcoin via email
• Mutiny Wallet is Shutting Down
• Satoshi Pacioli offers free tax services for OSS bitcoin devs
• Casa now supports yubikey as a blind signer