Location

The event will be hosted at NodeNBO:

Gigiri, Nairobi

nodenbo.com

Map

Announcements

Join us on our Bitcoin Socratic Seminar #31. A special thank you to our sponsor Btrust for food and refreshments.

Reminders

• We prefer no photos and no videos during the event
• Chatham House Rule
• Leave the meeting space as clean as you found it
• Suggest topics for the next Socratic Seminar! Where to find topics?

Topics

Bitcoin

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MC: Brandon

• BIP 110: Reduced Data Temporary Softfork
  • Block 961,632
  • WE HAVE FORK-OFF!
  • BIP110 has forked off
• Quantum Safe Bitcoin tx on mainnet
• Draft BIP for relaying stale block tips between peers — opt-in P2P message tracking “stale block rate” to expose validation bottlenecks, partitions, or selfish mining
  • BIP draft text
• HWI repository to enter maintenance mode
• Static Bitcoin Core binaries available for testing

MC: Frank

• COLDCARD wallets at risk of theft from a firmware entropy bug — Mk3 (v4.0.1+) and pre-5.6.0 Mk4/Mk5/Q generated seeds with ~40 bits instead of 128; losses estimated over 1,000 BTC
  • Technical root-cause analysis
• zkPoH: a zero-knowledge proof-of-hodl prototype — proves control of ≥100,000,000 sats without revealing UTXO details
  • Reference implementation

Mining

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MC: Simon

• OCEAN launches Portal, an end-to-end encrypted pool dashboard — free dashboard for miners on OCEAN, unveiled at Mining Disrupt 2026
• A miner rejects BIP-110 despite mining through a pool that signals for it — OCEAN’s DATUM protocol keeps block-template construction with the individual miner, not the pool operator

MC: Nkatha

• Pooled mining payout mechanisms / EDCA — Optech’s topic primer on how Betterhash, Braidpool, Stratum, and Stratum v2 coordinate pooled mining and split rewards
  • EDCA reference implementation
• Bitcoin After Block Rewards: preventing miner deviation once the subsidy hits zero

Lightning Network

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MC: Isaack

• Core Lightning maintainers disclose critical vulnerabilities, urge emergency offline mode — bugs surfaced via an AI-assisted audit of 390+ Bitcoin repos by the Bitcoin Red Team; a signed binary patch was promised within 48 hours, full disclosure and CVEs within two weeks
  • ElementsProject/lightning releases — authoritative source for the patch once published
  • the second significant CLN vulnerability event in weeks, after the twin memory-exhaustion DoS bugs disclosed July 31 (message-queue flooding, fixed in #8376; fake-SCID flooding, fixed in #8903) — disclosure post
• A conditional message transfer contract to solve channel jamming — Antoine Riard’s Script construction charging withhold-fees proportional to how long a payment is held, turning jamming into an expensive attack
• Eclair 0.14.1 — BOLT12 fixes, now requires Bitcoin Core 31.x

eCash

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MC: Martin

• Nutshell 0.20.3 — adds P2BK (Pay-to-Blinded-Key) for payment unlinkability and a Spark L2 wallet backend
  • Nutshell 0.20.2 — hardening release enforcing auth on NUT-29 batched minting, migrates quote/subscription IDs to UUIDv7

Privacy Tech

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MC: Denver

• Designing standalone escrows in Pontmore PIP-01 — lets agents discover compatible escrow mechanisms, settlement networks, funding and release rules for fiat↔BTC swaps before a swap starts
  • Pontmore protocol
  • Rollpot: a two-player dice wager built on a standalone escrow

Upcoming Events & Announcements

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MC: Sharon

• Africa Bitcoin Conference 2026

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Submit suggestions for next meeting!

Issues on Github: https://github.com/BitDevsNBO/bitdevsnbo.org/issues