Announcements
Please join us for our next Socratic Seminar. A special thank you to our host Primal Burger, for the event space. Please support them by buying their delicious food or a beverage.
If you can't make it to the main event please join us at Lutz Tavern around 9PM here.
Special Thanks | Mentions
- Thank you to everyone who shows up each month!
Rules
Requests
- A guest speaker for July 28 2026
Schedule
- 6:30pm - 7:00pm: Arrive, socialize, and grab some food.
- 7:00pm - 8:30pm: Developer Topics and Discussion
Bitcoin Dev News
- Bitcoin Mailing List - Remove BIP125 RBF Signaling
- Proposal to remove BIP125 RBF signaling from Bitcoin Core wallet
- Since fullrbf became default in v28.0, explicit signaling is now redundant
- Plans to share an informational BIP recommending input sequence numbers
- Testnet 5 Proposal
- BIP draft for new Testnet5 addressing Testnet4 usability issues
- Also serves as a miner playground for BIP54
- Quantum Secure BIP324
- Proposal to upgrade BIP324 (P2P encryption) to be post-quantum resistant
- Current ECDH key exchange is vulnerable to "harvest, decrypt later" attacks
- Lower hanging fruit than consensus-layer quantum resistance
- Rust Bitcoin Witness Commitment Check
- Fix for divergence between rust-bitcoin and BIP-141
- Blocks with witness commitment must contain exactly one 32-byte witness reserved value
- Previous code didn't enforce this for non-SegWit transactions
- Nix Deterministic Builds
- Bitcoin Core v31.0 can now be built with Nix matching Guix bit-by-bit
- Includes bitcoind, bitcoin-qt, bitcoin-cli for x86_64 and aarch64
- Big win for reproducible builds across different toolchains
- Back to Back Forks
- Bitcoin had back-to-back forks at heights 949203 and 949204
- Rare occurrence but not considered special or concerning
LN Dev News
Bitcoin General News
- ZEC - Exploited for Unlimited Private Coins
- Orchard Counterfeiting Vulnerability discovered in Zcash
- Security update published by Shielded Labs
- 2.9M views on the disclosure announcement
- Tropic Square Security Vulnerability
- Ledger Donjon discovered laser fault injection attack on TROPIC01 chip
- More complex combined attack paths could breach hardware boundary
- Not a remote exploit, no evidence of real-world exploitation
- Mitigation measures available for deployment
- Sparrow Wallet Mobile Yoinked from App Store
- Craig Raw's Apple Developer account flagged for termination
- Placeholder app to warn about fake "Sparrow" apps was flagged as "dishonest"
- Unless reversed by June 30, all new Sparrow Wallet installs will fail
- Over a dozen fake Sparrow apps have appeared since 2023, causing user losses
- Trezor Tropic Square Compromise Announcement
- Ledger Donjon reported successful laser fault injection on TROPIC01 chip
- Tropic Square found additional method to extract PIN-related secrets
- User funds are safe - vulnerability cannot access PIN, funds, or wallet backup
- No action required from users; disclosure shows commitment to transparency
- Bridge Drained
- Taiko L2 bridge drained for ~$1.7M
- Root cause: private key (enclave-key.pem) committed to public GitHub repo
- Key was used to sign all of Taiko's SGX enclaves
- Attacker forged SGX attestations on fake L2 blocks
- Key management failure, not an SGX exploit
- BIP110 Warning
- Question about customer guidance for forked Bitcoin implementations
- Concerns about discarding blocks and not moving chain tip forward
- Especially relevant for Lightning channel users
- BIP110 Forking Dynamics
- 11-step thread explaining BIP110 forking dynamics
- BIP110 and Standard miners share same chain until rule disagreement
- Split could happen at lock-in threshold or mandatory signalling
Tech News
- Trump Quantum Dominance
- Trump signed 2 executive orders for USA "Quantum Dominance"
- 2030 & 2031 new deadlines for USA's post-quantum transition
- Aims to supercharge quantum research
- White House attempting to get ahead of cybersecurity concerns