Announcements

Please join us for our next Socratic Seminar. A special thank you to our sponsors Chaincode Labs and Lava for food, refreshments and event space.

Please note the start time! We will open doors at 6pm for socializing, and plan on starting the discussion around 7pm.

If you can’t make it to the main event please join us at PUBKEY around 9:30PM.

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• Twitter
• BlueSky
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Presentation

• Sergi Delgado presents his work on Erlay and his research using network simulations.

Mailing Lists, Meetings and Bitcoin Optech

Mailing Lists

bitcoin-dev

• The case for privatizing Bitcoin Core
• CTV + CSFS: a letter
• Pre-emptive commit/reveal for quantum-safe migration (poison-pill)
• OP_CAT Enables Winternitz Signatures
• Sybil resistance in different coinjoin implementations
• Post-Quantum commit / reveal Fawkescoin variant as a soft fork
• Allowing Duplicate Keys in BIP 390 musig() Expressions
• Draft BIP: Well-Known Bitcoin Identity Endpoint

Delving Bitcoin

• Why CTV+CSFS and not TXHASH
• Garbled circuits and BitVM3
• Research Update: A Geometric Approach for Optimal Channel Rebalancing
• CTV vault output descriptor
• JIT fees with TXHASH: comparing options for sponsorring and stacking
• Where does the 33.33% threshold for selfish mining come from?
• Scaling Noncustodial Mining Payouts with CTV
• (Rust) descriptor-encrypt: Encrypt any descriptor such that only authorized spenders can decrypt
• Correcting the error in getnetworkhashrateps
• Witnessless Sync for Pruned Nodes

Meetings

• Bitcoin PR Review Club
  • #31829 Improve TxOrphanage denial of service bounds
  • #30605 Cluster linearization: separate tests from tests-of-tests
• Bitcoin Core general developer meetings
  • May 29
  • June 5
  • June 12
  • June 19
• Lightning Specification meeting
  • June 2
  • June 16

Optech

• Bitcoin Optech Newsletter #356
  • #356 Recap Podcast
• Bitcoin Optech Newsletter #357
  • Recap Podcast
• Bitcoin Optech Newsletter #358
  • Recap Podcast
• Bitcoin Optech Newsletter #359

Network Data

• <1s/vB fee transactions getting mined
• Notes on ‘DoS due to inv-to-send sets growing too large’ from May 2023

CVEs and Research

Research

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InfoSec

• Google fixes bug that could reveal users’ private phone numbers
• Trump Taps Palantir to Compile Data on Americans

Pull Requests and repo updates

Bitcoin Core

• Add checkBlock() to Mining interface
• thread-safety: fix annotations with REVERSE_LOCK
• wallet: have external signer use PSBT error code EXTERNAL_SIGNER_NOT_FOUND
• wallet, refactor: Remove Legacy wallet unused warnings and errors
• wallet, rpc: Return normalized descriptor in parent_descs
• wallet: Fix wallet interface detection of encrypted wallets
• validation: stricter internal handling of invalid blocks
• config: allow setting -proxy per network
• policy: uncap datacarrier by default
• init: Configure reachable networks before we start the RPC server
• fuzz: Add target for coins database
• test: apply microsecond precision to test framework logging
• signet: omit commitment for some trivial challenges
• wallet: init, don’t error out when loading legacy wallets
• wallet, rpc, gui: List legacy wallets with a message about migration

rust-bitcoin

• Add fee rate constructors that take Amount as arg
• bitcoin: secp256k1 global-context feature re-export
• Modify locktime serde implementations
• Make FeeRate use MvB internally
• Remove all p2p dependency from network
• Introduce empty p2p messages crate
• Move p2p encodings from encode and into p2p
• Improve lock times - fix off-by-one bug

Core Lightning

• wallet: initialize previously closed channels
• lightningd: fix log crash on weird escape lines from plugin.
• CHANGELOG.md: warn that spec compliance mean we broke splicing.
• gossipd: check for existing channel announcement before sigcheck

eclair

• Simplify force-close transaction signing and replaceable publishers
• Prepare attribution data for trampoline payments
• Increase channel spent delay to 72 blocks
• Round hold times to decaseconds
• Stop storing commit tx and HTLC txs in channel data
• Remove non-final transactions from XxxCommitPublished
• Add attribution data to UpdateFulfillHtlc
• Parse offers and pay offers with currency
• Add more splice channel_reestablish tests
• Rework closing channel balance computation
• Watch spent outputs before watching for confirmation
• Cleaner handling of HTLC settlement during force-close

LDK

• Follow-ups #3741: Exchange splice_locked messages
• option_simple_close: Add feature, messaging types, shutdown script construction
• Exchange splice_locked messages
• fuzz: Add LSPS message decoder fuzzing
• Sort LSPS2 opening fee params menu according to spec requirements
• Check if a batch is expected for commitment_signed
• Don’t generate a commitment if we cannot afford a holding cell feerate
• Async BumpTransactionEventHandler
• Revert attribution of failures
• Fix possible dust HTLC sweep tx when feerate remains unchanged during a bump
• Peer Storage Feature – Part 2
• Separate auxiliary HTLC data from holder commitment transaction
• Implement start_batch message batching
• Channel Establishment for V3 Channels
• Allow counterparty pending monitor update within quiescence handshake
• Allow setting a payer_note on pay_for_offer_from_human_readable_name
• LSPS2: Add error handling events for failed client requests
• Introduce Flow utilities and OffersMessageFlow implementation
• LSPS2: Fail (or abandon) intercepted HTLCs if LSP channel open fails

lnd

• Improve access control in peer connections
• lnrpc: add auth_proof to graph APIs
• (11) graph/db: Implement various “ForEach” methods on the graph SQLStore
• (10) graph/db+sqldb: implement ForEachSourceNodeChannel
• graph/db+sqldb: channel policy SQL schemas, queries and upsert CRUD
• Use spent height as the rescan start height in RegisterSpendNtfn
• lnrpc: add incoming/outgoing channel ids filter to forwarding history request
• htlcswitch: exit early if no adds are in the fwd pkg
• multi: explicitly define InboundFees in ChannelUpdate and ChannelEdgePolicy
• lnrpc: add HtlcIndex to ForwardingEvents
• Add the option on path creator to specify the incoming channel on blinded path
• accessman: remove restrictions on protected/temporary peers
• peer+feature: start to signal the prod rbf coop close bit
• brontide: fix peer disconnection issue
• sqldb+graph/db: add channel tables and implement some channel CRUD

BIPs

• BIP380: make specs consistent about hardened indicators
• 390: clarifications on KEY expression restrictions
• 390: Allow repeated participant pubkeys
• 390: mention about multipath key expression in musig descriptors

BOLTs

• Clarify Mandatory Field Length Requirements and Add Note on Low R Signatures in BOLT 11

New Releases

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Events and Podcasts

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Mining

• BitMain announces a decentralized mining pool solution

Miscellaneous

• SaveOurWallets.org: Support Section 110 of the CLARITY Act
• BTCPayServer crashes on block 896727 coinbase transaction
• Trump to launch branded crypto trading application
• CTV+CSFS letter
• Texas cops cut open crypto ATM to recover $25K lost to scam
• Fuzzamoto just found its first bug on a Bitcoin Core PR