Announcements

• Respect people’s privacy
• Interaction and asking questions are encouraged
• Chatham House Rules

Releases

• Alby Hub 1.23 - Ark Backend, Just-in-Time channels, Cards page
• bark launches on mainnet
  • bark SDK
  • barkd
  • Noah Wallet - bark
  • Arké Wallet - bark
• lxdev launches bitcoin-denominated ecash wiht zk-proofs
• Added contributing documentation for Bitcoin Backbone - Antoine Ariard
• BDK language bindings 3.0.0

BIPs

• Testnet5 - draft BIP
• Significant updates to BIP 322

Vulnerabilities

• 2 Vulnerabilities in bark to steal funds - floppy
• Rug the mints - floppy

Tools

• MuSig2 between Core, ColdCard and Ledger - Sjors
• OpenAuspex: Bitcoin-anchored warrant canaries for Nostr
• satd: a Bitcoin full node in Rust with batteries included
• Wicked Smart Bitcoin Casacius Explorer
• Adding automated reproducibility checking for Bitcoin Safe - Andreas Griffin
• Bitnod.es bitcoin node monitoring tool and webiste launched - BitMex Research
• bitdis.org a fun newish bitocin node network dashboard
• LLM weights that are small enough to fit in a bitcoin tx - rijndael
• ECDSA.fail - can you break ECDSA?
• Give me lightning
• Cashu mint auditor
• MONAD: Monetized Onion Network Access Daemon
• blackbox_node
• Bitcoin Depression Index - John Carvalho
• SimplePool - Layer2Labs
• Orange Dev Network: First Public Map of Who’s actually building Bitcoin - Soru Kumar
• Stateless architecture for private Bitcoin coordination

News

• PlebLab presents Hackalajara 2.0
• BTC++ NAIROBI JUNE 17-19
• Help kids in your state learn about bitcoin next year
• Lexe launches buy with CashApp: instant buys into your self-custody LN wallet
• Botanix bites the dust
• 84-page Bitcoin manga
• The orchard counterfeiting vulnerability in Zcash - zooko
• Better and Coinbase do first Token-backed Mortgage approved by Fannie Mae
• Conduition receives Bitcoin research funding from Brink
• $8m in Bitcoin burned
• TABCONF 8 will be the last TABCONF
• Mining Unit - Localhost Research

Research

• Coinjoin ecosystem for Wasabi 2.x and Whirlpool coordinator-based privacy
• Six hard problems, one solution - Alekos Filini, Enclavia
• Economics of Protocol Design: Proposing Lightning over Ark - Rusty Russel
• BIP 110 debate between Chris Guida and Supertestnet
• Sedited (The Charlatan) on Validation logic in Bitcoin Core
• Pubic key recovery for EC leaves in P2MR (BIP-360) by Boris Nagaev
• Quantum threat: Let’s not turn Bitcoin into an altcoin - Antoine Ponsoit
• Burak introduces Cube
• running a cashu mint in a TEE - calle
• Dog park: privacy in bark
• Matching Hashes: Reproducing the Guix-built Bitcoin Core release binary with Nix
• Brink’s 2025 Annual Report