Announcements

Please join us for our 110th Socratic Seminar. If you can’t make it to the main event please join us at Draught 55 for food and merriment around 9:30PM. Thanks to our friends at BNY Mellon, CardCoins, Chaincode Labs and ZEBEDEE for food, refreshments and event space.

A final topic list will be posted on bitdevs.org the evening before the event. You can keep an eye on potential topics through our link aggregator service.

Presentation

Ishaana Misra and Autumn Domingo - Generation Bitcoin: Creating the Future of Bitcoin Innovators

Mailing Lists Bitcoin Optech

Mailing Lists

bitcoin-dev

• OP_FOLD: A Looping Construct For Bitcoin SCRIPT
• Teleport: a CoinSwap implementation alpha release, provides invisible private transactions
• Recurring bitcoin/LN payments using DLCs, dlc-dev
• Annex Purpose Discussion: OP_ANNEX, Turing Completeness, and other considerations
• bitcoin scripting and lisp
• CTV vaults in the wild
• OP_AMOUNT Discussion
• Improving RBF Policy
• Covenants and feebumping
• Beyond Jets: Microcode: Consensus-Critical Jets Without Softforks
• mempool transaction witness-replacement
• Silent Payments – Non-interactive private payments with no on-chain overhead

lightning-dev

• A Proposal for Adding Bandwidth Metered Payment to Onion Messages
• Interesting thing about Offered HTLCs
• Dynamic Commitments Part 2: Taprooty Edition

dlc-dev

• DLC Messaging and Networking

Optech

• Newsletter #189
• Newsletter #190
• Newsletter #191
• Newsletter #192
• Newsletter #193

Meetings

• Bitcoin PR Review Club
  • 24034 Delete anchors.dat after trying to connect to that peers (p2p)
  • 19602 Migrate legacy wallets to descriptor wallets (wallet, rpc/rest/zmq)
  • 24118 Add ‘sendall’ RPC née sweep (wallet, rpc)
  • 21778 LLVM 14 & LLD based macOS toolchain (build system)
  • Testing Bitcoin Core 23.0 Release Candidates (tests)
• Bitcoin Core general developer meetings
  • March 3rd
  • March 10th
  • March 17th
  • March 24th
• Bitcoin Core wallet meetings
  • March 11th
  • March 25th
• dlc-specs meetings
  • March 8th
• Lightning specification meetings
  • February 28th
  • March 14th

Network Data

Research

InfoSec

Pull Requests and repo updates

Bitcoin Core

• net/net processing: Move tx inventory into net_processing
• net: respect -onlynet= when making outbound connections
• Enforce Taproot script flags whenever WITNESS is set
• p2p: extend inbound eviction protection by network to CJDNS peers
• [kernel 0/n] Introduce bitcoin-chainstate
• Add (sorted)multi_a descriptor for k-of-n multisig inside tr
• init, doc: improve -onlynet help and related tor/i2p documentation
• wallet: generate random change target for each tx for better privacy

rust-bitcoin

• Fix signature hash returned for sighash single bug
• TapTree iterator

secp256k1

• Schnorrsig API improvements

BIPs

• BIP 326: Anti-fee-sniping protection with nSequence in taproot transactions to improve privacy for off-chain protocols

eclair

• Use direct channel when available
• Add channelbalances API call
• Relay if fees satisfy previous channel update for X minutes after current update
• Add a new min-funding config parameter for private channels

c-lightning

• hsmd: Add wallet index metadata to existing messages
• cln-grpc-plugin: Secure access to your node over the network
• Database librarization
• Multiple channels (per peer) support
• setchannel: new command
• invoice description hash support

lnd

• LND v0.14.3-beta.rc1
• Taproot: integrate btcec/v2 and btcwallet changes to support Taproot key spend paths in lnd’s wallet
• lnrpc+sweep: properly remove any unconfirmed descendant chains a to-be-swept input is spent
• multi: permit sending to and receiving from P2TR addresses
• htlcswitch: add an always on mode to htlc interceptor

rust-lightning

• Add random ‘shadow route’ CLTV delta offsets to improve privacy
• Filter route hints when creating invoices
• 0.0.105 Security Fixes
• Implement the SCIDAlias Channel Type and provide SCID Privacy
• Randomize candidate paths during route selection
• Create normal/phantom invoice with description hash
• ProbabilisticScorer optimizations

New Releases

Events and Podcasts

Mining

Miscellaneous

• Shock The Web Hackathon - Day 1, 2, 3
• ZBD Streamer -> Lightning Streaming Tips