Announcements

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General Links

• Bitcoin Optech
• Bitcoin Core PR Review Club
• bitcoin-dev Mailing List
• lightning-dev Mailing List

Delving Bitcoin, Mailing Lists, Meetings and Bitcoin Optech

Delving Bitcoin

• Input-triggered transaction expiry
• Expiring HTLCs without free relay
• Transaction rate-limiting
• Segwit commitment to post-quantum witness data?
• Post Quantum Recovery Of Hashed Addresses With No Confiscatory Risk
• RFC: Block-Range Filters (a.k.a. Hierarchical filters)
• Btc-verified: formalizing the Bitcoin protocol
• SuperScalar: an implementation report
• ASmap dashboard: tracking the asmap-data history against the observed network
• Babilonia - probabilistic coinjoin and covert betting
• The Four Horsemen
• BIP110 Monitor & Simulator
• E2E encryption for BOLT11/BOLT12 description/note field was this discussed before?

Mailing Lists

bitcoindev

• Giving teeth to expected EC disabling: P2XX(-T)(-ML)
• BIP draft: Full-Aggregation of BIP 340 Signatures
• BIP draft: CISA for Taproot Key Path Spends
• [Research] Bitcoin After Block Rewards: preventing miner deviation as the block rewards approaches zero
• Prohibit Merkle Internal Node Preimages That Encode Minimal 64-Byte Transactions

Optech

• Newsletter #411, audio recap
• Newsletter #412, audio recap
• Newsletter #413, audio recap
• Newsletter #414, audio recap
• Newsletter #415, audio recap

Network Data

• ASmap dashboard
• OS fingerprints of ~16.6k Bitcoin nodes

CVEs and Research

Research

• Introducing Bedrock: A Deterministic Hypervisor

InfoSec

• Vulnerability Disclosure: Twin Memory Exhaustion DoS Vulnerabilities in Core Lightning
• LND zero-timestamp gossip DoS disclosure
• Post-Mortem: What Happened Between Samourai Wallet and Me

Pull Requests and repo updates

Bitcoin Core

• validation: fetch block input prevouts in parallel during ConnectBlock
• p2p: Replace per-peer transaction rate-limiting with global rate limits
• wallet: Add exportwatchonlywallet RPC to export a watchonly version of a wallet
• p2p: Drop unsolicited CMPCTBLOCK from non-HB peer and when blocksonly
• rpc: Distinguish between vsize and sigop adjusted mempool vsize
• p2p: Increase inbound capacity for block-relay only connections

secp256k1:

• Add “silentpayments” module implementing BIP352 (take 4, limited to full-node scanning)

LND

• lnwallet+walletrpc: add WalletKit.SubmitPackage for v3 CPFP package relay

Eclair

• Accept Bolt12 invoices with reply path

BIPs

• BIP459: Full-Aggregation of BIP 340 Signatures
• BIP95: Testnet 5

New Releases

• Bitcoin Core 31.1
• Bitcoin Core 30.3
• Bitcoin Core 29.4
• Wavelength alpha (Lightning Labs)

Mining

• Fee Selection for CTV-Based Mining Pool Fanouts
• [Research] Bitcoin After Block Rewards: preventing miner deviation as the block rewards approaches zero

Privacy

• Babilonia - probabilistic coinjoin and covert betting

Miscellaneous

• The Four Horsemen