Announcements

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Mailing Lists, Meetings and Bitcoin Optech

Mailing Lists

• Libre Relay v27.1 released with lower 1.25x replacement threshold
• Proposing a P2QRH BIP towards a quantum resistant soft fork
• Bitcoin Core 27.1 released
• BIP-? : Free seed mnemonics for steganography and attack-resistance
• Bitcoin Core 27.1 release candidate 1 available
• BIP for Testnet 4
• BIP 21 Updates

Delving Bitcoin

• DoS Disclosure: LND Onion Bomb
• Estimating Likelihood for Lightning Payments to be (in)feasible
• Bitcoind Policy Estimator modes Analysis
• Drivechain with and without BIP 300/301
• Proposing a P2QRH BIP towards a quantum resistant soft fork
• Proof-of-work based signet faucet
• Who will run the CoinJoin coordinators?
• Proposed risk framework for Bitcoin L2s and Sidechains
• FE’d Up Covenants

Meetings

• Bitcoin PR Review Club
  • #30132 Don’t wipe indexes again when continuing a prior reindex
• Bitcoin Core general developer meetings
  • May 30
  • June 6
  • June 13
  • June 20

Optech

• Bitcoin Optech Newsletter #308
• Bitcoin Optech Newsletter #307
• Bitcoin Optech Newsletter #306
• Bitcoin Optech Newsletter #305
• Bitcoin Optech Newsletter #307 Recap Podcast
• Bitcoin Optech Newsletter #306 Recap Podcast
• Bitcoin Optech Newsletter #305 Recap Podcast

Network Data

• Empty Block Report
  • empty block explainer discussion
• OKX massive fee overpayment during consolidation
• Odd Stale Block/Spy Mining Behaviors - 845869, 848860, 848477
• Scortched-earth fee race on low-entropy address
• SRC-20 mint consume sigop limit
• Visualization of p2p connections and messages

CVEs and Research

Research

• Concurrently Secure Blind Schnorr Signatures
  • discussion
• Dynamic-FROST: Schnorr Threshold Signatures with a Flexible Committee
• MixBuy: Contingent Payment in the Presence of Coin Mixers
• Ring Signatures
  • DualRing-PRF: Post-Quantum (Linkable) Ring Signatures from Legendre and Power Residue PRFs
  • Physical Ring Signature
  • Signer Revocability for Threshold Ring Signatures
• SmartZKCP: Towards Practical Data Exchange Marketplace Against Active Attacks

InfoSec

• CoinStats says North Korean hackers breached 1,590 crypto wallets
• DMM Bitcoin exploited for $304m
• DoS: LND Onion Bomb
• Proposed Disclosure Policy for Bitcoin Core
• “Researchers” exploit Kraken exchange bug, steal $3 million in crypto
• Fediment service degraded by DNS take over

Pull Requests and repo updates

Bitcoin Core

• netbase: extend CreateSock() to support creating arbitrary sockets
• net_processing: make any misbehavior trigger immediate discouragement
• upnp: fix build with miniupnpc 2.2.8
• Cluster size 2 package rbf
• bumpfee: ignore WALLET_INCREMENTAL_RELAY_FEE when user specifies fee_rate
• refactor: Reduce memory copying operations in bech32 encoding
• Update minisketch subtree to eb37a9b8e79f9e49d73b96a49bf97a96d9eb676c
• fuzz: add I2P harness
• wallet, rpc: document and update sendall behavior around unconfirmed inputs
• consensus: Store transaction nVersion as uint32_t
• util: add BitSet
• validation: improve performance of CheckBlockIndex
• indexes: Don’t wipe indexes again when continuing a prior reindex
• policy: bump TX_MAX_STANDARD_VERSION to 3
• util: add VecDeque
• rpc, wallet: fix incorrect segwit redeem script size limit
• Fix waste calculation in SelectionResult

BDK

• fix(wallet)!: Simplify SignOptions and improve finalization logic
• No descriptor ids in spk txout index
• Make Wallet require a change descriptor
• refactor(electrum) put the tx cache in electrum

rust-bitcoin

• Enforce script size limit when hashing scripts
• Update bitcoinconsensus version to 0.106.0+26
• Add API for extracting the inner payload of RawNetworkMessage

Core Lightning

• Wait for bitcoind if it’s gone backwards, don’t abort.
• Autoclean for giant nodes
• BOLT catchups for v24.08
• poetry: Use non-package mode
• script: Adding cl-repro script for easier builder image building
• Deprecations for v24.08
• gossipd: fix crash when processing pending node_announcements.
• script: Add reproducible build script for Ubuntu v24.04

eclair

• Add EncodedNodeId for mobile wallets
• Register can forward messages to nodes
• Add payCommitTxFees flag to LocalParams
• Unwrap blinded routes that start at our node
• Accept onion failure without a channel_update

LDK

• Async payments message encoding and prefactor
• Optimize ChannelMonitor persistence on block connections.
• Implement non-strict forwarding
• Blinded paths with unannounced introduction nodes
• Parse v2 Rapid Gossip Sync
• Asynchronous Bolt12Invoice payment
• BOLT 12 static invoice encoding and building
• Use a real (probing-generated) scorer in benchmarks
• Updated ClosureReason::HolderForceClosed with whether txn was broadcasted.
• Force-close channels if their feerate gets stale without any update
• Ignore channel updates in onion errors
• Optional compact blinded path creation
• Reintroduce addresses to NodeAnnouncementInfo.
• Watch all outputs irrespective of claimable outpoints
• Don’t disconnect on manual force closes
• Move the public channel state API into a new module
• Implement Readable for Offer and Refund
• Allow for user-specified error message during force close channel
• Log peer’s features if they require some unknown features we don’t support
• Allow responding asynchronously to OnionMessage

lnd

• routing: assume TLV onion feature bit
• routing: cancelable payment loop
• itest+lntest: let abandoned channel be either not found or in zombie
• lncli: new command wallet estimatefeerate
• contractcourt: consider delivery addresses when evaluating toSelfAmount
• Allow for a channel point in GetChanInfo
• Expose cltv_expiry flag of addinvoice to cli

BIPs

• BIP-352: handle invalid privkey / pubkey sums for sending / scanning, add changelog
• BIP-352: generate input_hash after summing up keys (simplification)
• Fix bip number in specification
• Add BIP 353: DNS Payment Instructions

BLIPs

• Define blip-0032, DNSSEC proof querying over onion messages

BOLTs

• BOLT 2: quiescence protocol (feature 34/35) option_quiesce

New Releases

• Bitcoin Core 26.2 release candidate 1 available
• harbor ecash desktop wallet

Events and Podcasts

• BR069 - Cat is out of the bag? OP_CAT ft. NVK, Andrew Poelstra, Rob Hamilton & Rijndael
• BTCPrague 2024
• Rusty Russell – The Great Script Restoration Project
• SLP580 - Bitcoin and MEV with Walt Smith
• SLP584 - Updates on Ark with Tiero

Mining

• Antminer T21 Technical Deep Dive
• Avalon A1566 ASIC Miner Testing and Review
• BitAxe Supra: 4th Major Revision with BM1368 ASIC from Antminer S21
• Bitcoin Mining Hashrate Futures: What They Are, Why They Matter, How to Trade Them
• Braiins Launched Mini Miner BMM 100
• Cryptocurrency mining as a novel virtual energy storage system in islanded and grid-connected microgrids
• Stay Cool, Mine On: Exploring Bitcoin Mining Cooling Solutions

Miscellaneous

• Choose-your-own coordinator with new Wasabi release
• CoinPile
• Effects of DBcache Size on Bitcoin Node Sync Speed
• HRF Grants 10BTC to 13 projects
• Introducing Brollups
• OpenSats LTS Grants - Calle, William Casarin
• Review of early block size increase proposals
• EU “Chat Control” bill threatens e2e encryption