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

Mailing Lists and Bitcoin Optech

Mailing Lists

bitcoin-dev

• Modern Soft Fork Activation
• Discreet Log Contract Protocol Specification
• Payswap
• Onchain fee insurance mechanism
• Is anyone using the Bitcoin Core Gitian binaries on 32-bit Linux?
• Layered Commitments with Eltoo

lightning-dev

Optech

• Newsletter #80
• Newsletter #81
• Newsletter #82
• Newsletter #83
• Newsletter #84

Network Data

• Proportion Of Public vs Private Channels - BitMEX Blog
• Miner salary share across PoW cryptocurrencies
• Bitcoin SV non-consensus chainsplit
• Darknet Market Activity

CVEs and Research

Research

• Characterizing Orphan Transactions in the Bitcoin Network
• The Arwen Trading Protocols

InfoSec

• BRIGHTNESS: Leaking Sensitive Data from Air-Gapped Workstations via Screen Brightness
• Kraken identififes criticial flaw in Trezor
• BTG 51% attacks
• Paxos and CoinJoin
• CacheOut Attack
• Deanonymizing Tor Circuits

Pull Requests and repo updates

Bitcoin Core

• bumpfee: Return PSBT when wallet has privkeys disabled
• rpc: Output a descriptor in createmultisig and addmultisigaddress
• p2p: supplying and using asmap to improve IP bucketing in addrman
• Use rolling bloom filter of recent block txs for AlreadyHave() check

BIPs

• The Schnorr/Taproot proposal is now published as BIPs 340, 341, and 342
  • BIP 340 - schnorr signatures
  • BIP 341 - tapoot
  • BIP 342 - tapscript
• Switch to even-y tiebreaker for pubkeys
  • Squareness vs oddness tie-breaker for public keys
• Avoiding the EC multiplication during signing by using precomputed pubkey data
  • Ed25519 / EdDSA key leakage due to fragility in recommended nonce procedure

lnd

• LND v0.9.0 Release
• Htlcswitch: Disallow circular routes on same channel
• Chantools
• Lightning Loop v0.4.0-rc1.beta
• Routing: penalize node-level failures harder
• Doc: add Operational Safety Guidelines document
• lnrpc+lncli: add send support for custom data records

eclair

• Eclair v0.3.3 Release
  • Trampoline Payments: here and here
  • Multipart Payments
  • Deterministic build of eclair-core artifact on ubuntu

c-lightning

• Add a sendcustommsg RPC call and a custommsg plugin hook for experimental protocol extensions
• Handle blockheight disagreement between us and payee

BOLTS

• BOLT-04: modify Sphinx packet construction to use starting random bytes
• BOLT 1: Define custom message type range
• Single-option large channel proposal - per node support to Wumbo

Miscellaneous

• Remembering Tamás Blummer
• Ant Routing scalability for the Lightning Network
• Lightning Labs raises $10M Series A
• Bitcoin Achieves Major Milestone with Half a Billion Transactions Confirmed
• PSA: Wrong fee rates on block explorers
• LSATs: Pseudonymous Authentication using Bitcoin Lightning Payments
• Onboarding to Bitcoin Core
• BIP 119 CTV Workshop
• Lightning Conference Transcripts
• Austin Socratic Seminar 5 Transcript
• Reverse submarine swaps
• Announcing Lightning Loop Beta
• Pieter Wuille on The Chaincode Podcast
• RTL c-lightning-REST v0.2.0