This Thursday in SF: Socratic Seminar #70 from SF Bitcoin Devs at Presidio Bitcoin. Bitcoin Core PRs, network stats, and research papers — debated live. Thu May 14 · 6 PM PT 38 Keyes Ave Suite 300 meetu.ps/e/Q0tCb/b9bFd/i

Meetup tomorrow 6:00 @DigitalGarage meetu.ps/e/PXgSj/b9bFd/i

Starting 30 minutes earlier than usual. 6:00 Thursday 3/5 meetu.ps/e/PSZhz/b9bFd/i

Socratic Seminar Tonight At Stanford meetu.ps/e/PMH2P/b9bFd/i

Liam Eagen joined Optech to discuss Newsletter #390: News ● Argo: a garbled-circuits scheme with more efficient off-chain computation (0:48) ● LN-Symmetry update (26:05) Selected Q&A from Bitcoin Stack Exchange ● What is stored in dbcache and with what priority? (34:21) ● Can one do a coinjoin in Shielded CSV? (24:02) ● In Bitcoin Core, how to use Tor for broadcasting new transactions only? (36:47) ● Brassard-Høyer-Tapp (BHT) algorithm and Bitcoin (BIP360) (38:31) ● Why does BitHash alternate sha256 and ripmed160? (39:24) Releases and release candidates ● Libsecp256k1 0.7.1 (41:09) Notable code and documentation changes ● Bitcoin Core #33822 (42:59) ● Bitcoin Core #34269 (44:50) ● Core Lightning #8850 (47:38) ● LDK #4349 (49:16) ● Rust Bitcoin #5470 (50:54) ● Rust Bitcoin #5443 (51:26) ● BDK #2037 (52:51) ● BIPs #2076 (55:49) ● BIPs #1500 (59:39)

Kick off 2026 with Socratic Seminar! This Thursday 1/8 meetu.ps/e/PM3XR/b9bFd/i

Anthony Towns (@ajtowns) and Mikhail Kudinov (@kudinov_mikhail) joined Optech to discuss Newsletter #386. A notice about the wallet migration bug in Bitcoin Core was discussed at (56:30) News ● Building a vault using blinded co-signers (1:04:09) ● Peer feature negotiation (1:40) Changing consensus ● Year 2106 timestamp overflow uint64 migration (1:07:47) ● Relax BIP54 timestamp restriction for 2106 soft fork (1:11:36) ● Understanding and mitigating a CTV footgun (1:16:30) ● CTV activation meeting (1:21:00) ● `OP_CHECKCONSOLIDATION` to enable cheaper consolidations (1:23:11) ● Hash-based signatures for Bitcoin's post-quantum future (20:47) Releases and release candidates ● BTCPay Server 2.3.0 (1:28:29) Notable code and documentation changes ● Bitcoin Core #33657 (1:30:25) ● Bitcoin Core #32414 (1:33:23) ● Bitcoin Core #32545 (1:39:18) ● Bitcoin Core #33892 (1:42:13) ● Core Lightning #8784 (1:44:35) ● LND #9489 (1:45:54) ● BIPs #2051 (1:50:09) ● BOLTs #1299 (1:56:39) ● BOLTs #1305 (1:59:46)

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Don’t forget the meetup is tonight 👇👇

Meetup is this TUESDAY 11/4 this month. At Stanford meetu.ps/e/PC6fm/b9bFd/i

Let’s Gooooo Holiday Party 12/13 12:00-3:00 meetu.ps/e/PDjx3/b9bFd/i

🎉 🎈 🎊

Bitdevs meetup Thursday 10/2 @PresidioBitcoin meetup.com/sf-bitcoin-devs/e…

Bit devs this Thursday 9/4 @PresidioBitcoin meetu.ps/e/PrP8Z/b9bFd/i

👇👇👇👇 Thursday

Bitdevs tonight!!!!! @PresidioBitcoin meetu.ps/e/PqH1Z/b9bFd/i

Friends, I’m hosting another Programming Lightning workshop at the stunning @PresidioBitcoin! During this 1-day workshop, we'll build a Lightning channel from scratch. Along the way, we'll leverage the following educational tools to ensure that participants come away with a deep understanding of topics such as asymmetric commitment transactions, revocation keys, HTLCs, and more: - Coding exercises - Socratic method (question-driven learning) - LOTS of diagrams - Small-group discussions, where participants teach each other to reinforce concepts collaboratively

Welcome to our live show! x.com/i/broadcasts/1ynJOlZMO…

want to take a second and help cross-pollinate the local bitcoin groups that are active in the Bay Area. There are 4 primary brands running in-person Bitcoin meetups: Bay Area Bitcoiners SF Bitcoin San Francisco Bitcoin Developers San Francisco Lightning Devs

Heads up: Thursday’s meet up is Digital Garage. meetu.ps/e/P9sbj/b9bFd/i