Special thanks to Chaincode Labs and NYU Blockchain Digital Asset Forum for food, refreshments and event space.

Presentation

• Matthew Zipkin - bcoin

Mailing Lists and Bitcoin Optech

Mailing Lists

bitcoin-dev

• Bech32 weakness and impact on bip-taproot addresses
  • see also How does the bech32 length-extension mutation weakness work?
• CVE-2017-18350 disclosure
  • see also Bitcoin Core CVE-2017–18350 disclosure

lightning-dev

• BOLT 12: Lightning Offers protocol discussion
• BOLT 11: New optional vendor field discussion
• Potential Minor Sphinx Privacy Leak and Patch

Optech

• Newsletter #70
• Newsletter #71
• Schnorr/taproot workshop
• Topics Index

Network Data

• 2019 Bitcoin Node Performance Tests
• Bitcoin mining in Georgia
• OXT Landscapes updated
• Hut 8 Mining Corp Q3 Financial Report

CVEs and Research

Research

• Reducing Bitcoin Transaction Sizes with x-only Pubkeys
• Coin Selection with Leverage
• An investigation of MMM ponzi scheme on Bitcoin
• TendrilStaller: Block Delay Attack in Bitcoin

InfoSec

• Bitcoin Cash Hashrate Volatiility
• Bitcoin’s Block Timestamp Protection Rules
• How Coinbase views proof of work security
• 0-day for popular Android phones

Pull Requests and repo updates

Bitcoin Core

• Remove BIP70 support
• Add generatetodescriptor RPC
• Add Android NDK support
• UTXO snapshot creation (dumptxoutset)
• Merge settings one place instead of five places
  • see also Add settings.json persistent settings storage
  • see also Unify bitcoin-qt and bitcoind persistent settings
• Remove GetDepthInMainChain dependency on locked chain interface
  • see also Reverse cs_main, cs_wallet lock order and reduce cs_main locking

c-lightning

• Release: v0.7.3: Bitcoin’s Proof of Stake
• Multiple DB support for C-Lightning
• Postgres driver for backend DB
• JRPCLightning: Java Wrapper for C-Lightning RPC API
• Fix potential Sphinx privacy data leak

lnd

• Add ability to create new Macaroons
• Macaroon Entities and Actions
• Improve the probabilistic estimation for untried connections
• (pending) Allow custom data fields in the htlc payload
• (pending) Addressing Bitcoin Core 0.19 compatibility (#3625, #3649)

BIPs

• BIP 174 extensions
• BIP 179: Name for payment recipient identifiers
• BIP 325: Signet
• BIP 330: Transaction announcements reconciliation

BOLTs

• PR: Adding a new optional vendor property to BOLT 11 payment requests
• PR: Variable hop_payload for the sphinx onion
• (pending) Addressing Minor Sphinx privacy leak (#40, #697)
• Bolt 11 Diagram

Miscellaneous

• Node Operator’s Guide to the Lightning Galaxy, Part 2: Node Scoring and Pathfinding
• WhatSat: End-to-end encrypted, onion-routed, censorship-resistant, peer-to-peer instant messaging over Lightning
• Polar: One-click Bitcoin Lightning networks for local app development & testing
• RTL-Design: git workflow for design work on Ride The Lightning
• LSAT + Joule Demo
• Introducing Lightning Rod
• c-lightning Plugins 04: The listpayments Plugin