Announcements

Please join us for our next Socratic Seminar. A special thank you to our sponsors Chaincode Labs and Cake Wallet 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.

Follow New York BitDevs on:

• Twitter
• BlueSky
• nostr: npub1nydevscv0slx9eyr0chkkdgzqfhtp4guk039akhq6g9fnsrf6lcsup3hqs

Presentation

• Rob Hamilton from AnchorWatch presents the integration of Miniscript into their services.

Mailing Lists, Meetings and Bitcoin Optech

Mailing Lists

bitcoin-dev

• Revisiting secp256r1 signatures (i.e. P256, mobile HSM support)
• A Post Quantum Migration Proposal
• Make pathological transactions with more than 2500 legacy signature operations non-standard
• Taproot is post-quantum secure when restricted to script-path spends
• (bitcoindev) libsecp256k1 v0.7.0 released
• New BIP Editors: 1 Year Later
• Human meaningful witness versioning
• (BIP Proposal) Proof-of-Activity Reclamation (PoAR)
• A Taproot-native (re-)bindable transaction bundle proposal
• (BIP Proposal) Compressed Base58 Encoding for BIP-39 Mnemonics with Multisig Extensions
• RGB consensus layer released for production deployments
• What’s a good stopping point? Making the case for the capabilities enabled by CTV+CSFS
• (taproot)[script] 4-leaf Taproot Merkle Tree in Python: testnet implementation + control block analysis
• Changes to BIP-360 - Pay to Quantum Resistant Hash (P2QRH)
• Proposal for Decentralized Satellite-Based Bitcoin Nodes
• Bitcoin Core 28.2 Released
• Descriptors using H as a hardened indicator

Delving Bitcoin

• New paper on Proof of Usable Work
• Disclosure: LND gossip_timestamp_filter DoS
• Post-Quantum HD-Wallets, Silent Payments, Key Aggregation, and Threshold Signatures
• Augur: Block’s Open Source Bitcoin Fee Estimation Library
• Chain Code Delegation: Private Access Control for Bitcoin Keys
• Building Secure and Watchtower-efficient Bitcoin Payment Channels with BitVMX
• RGB consensus production release v0.12
• Exploring Extended Relative Timelocks
• Stealth addresses using nostr
• Changes to BIP-360 - Pay to Quantum Resistant Hash (P2QRH)
• Understanding and Mitigating a OP_CTV Footgun: The Unsatisfiable UTXO
• A rust library to encode descriptors with a 30-40% size reduction
• Reimagining Onion Messages as an Overlay Layer
• Fingerprinting nodes via addr requests

Meetings

• Bitcoin Core general developer meetings
  • June 26
  • July 3
  • July 10
  • July 17
  • July 24
• Lightning Specification meeting
  • June 30
  • July 14
  • July 28

Optech

• Bitcoin Optech Newsletter #364
• Bitcoin Optech Newsletter #363 - Recap Podcast
• Bitcoin Optech Newsletter #362 - Recap Podcast
• Bitcoin Optech Newsletter #361 - Recap Podcast
• Bitcoin Optech Newsletter #360 - Recap Podcast

Network Data

• What Network Activity Says About Changing Face of Bitcoin Users

CVEs and Research

Research

-

InfoSec

-

Pull Requests and repo updates

Bitcoin Core

• wallet: Remove upgradewallet RPC
• fuzz: Make process_message(s) more deterministic
• wallet, rpc: Move (Un)LockCoin WalletBatch creation out of RPC
• test: check proper OP_2ROT behavior
• Enable -natpmp by default
• tests: speed up coins_tests by parallelizing
• policy: make pathological transactions packed with legacy sigops non-standard
• Cluster linearization: separate tests from tests-of-tests
• rpc: use CScheduler for relocking wallet and remove RPCTimer
• mempool: Avoid needless vtx iteration during IBD
• (IBD) multi-byte block obfuscation
• p2p: improve TxOrphanage denial of service bounds
• log: Mitigate disk filling attacks by rate limiting LogPrintf, LogInfo, LogWarning, LogError
• util: explicitly close all AutoFiles that have been written
• Resolve guix non-determinism with emplace_back instead of push_back
• wallet: remove dead code in legacy wallet migration
• validation: Add eligible ancestors of reconsidered block to setBlockIndexCandidates
• mempool: use FeeFrac for ancestor/descendant score comparators
• rpc: Use type-safe exception to pass RPC help
• wallet: Remove ISMINE_WATCHONLY and watchonly from RPCs
• cluster mempool: add TxGraph reorg functionality
• threading: use correct mutex name in reverse_lock fatal error messages
• p2p: add more bad ports
• wallet: Always set descriptor cache upgraded flag for new wallets
• depends: Override host compilers for FreeBSD and OpenBSD
• wallet: migration, avoid creating spendable wallet from a watch-only legacy wallet
• feature_taproot: sample tx version border values more
• wallet: Keep track of the wallet’s own transaction outputs in memory
• p2p: Add witness mutation check inside FillBlock
• rest: fetch spent transaction outputs by blockhash
• test: added fuzz coverage for consensus/merkle.cpp
• blocks: force hash validations on disk read
• node: cap -maxmempool and -dbcache values for 32-bit
• depends: Build qt package for FreeBSD hosts
• wallet, rpc: Remove deprecated balances from getwalletinfo and getunconfirmedbalance
• wallet: Remove CWalletTx::fTimeReceivedIsTxTime
• build: add root dir to CMAKE_PREFIX_PATH in toolchain

Bitcoin Core App (QML-GUI)

• Add cmake, qt6, and bitcoin core submodule

BDK

• Add TxGraph::get_last_evicted
• refactor(electrum): remove unwrap()s and expect()s
• keychain_txout: apply_changeset restores spk cache before last revealed
• Disallow unconfirmed coinbase
• How can we be happy if clippy is not?
• feat: add justfile
• esplora: chain_update errors if no point of connection
• test for excluded bounds in outputs_in_range
• feat(electrum): optimize merkle proof validation with batching

rust-bitcoin

• Add Arbitrary impl for BlockHash, TxMerkleNode, and Wtxid
• Move locktime and sequence to units
• Use Self in script Builder
• bitcoin: Add public ext modules
• feat(p2p): create NetworkExt trait for default P2P port and Magic values
• Add Coinbase(Transaction) newtype to distinguish coinbase transactions
• Update NumOpResult arbitrary impl to only consume 1 byte of entropy
• Remove CheckedSum trait
• Add Arbitrary impl for relative::LockTime
• fix: preserve embedded nulls in CommandString for consensus validation
• bitcoin: Remove re-export of Denomination
• Inline script_pubkey extension traits
• Kill new mutants
• Remove match arm and guard mutant exclusion
• units: Test generic Add and Sub
• Saturate iwp constructors to u32 max
• psbt: check that non-witness UTXOs’ txids match the input txid
• Add tests to kill mutants
• Use new type names instead of deprecated aliases

libsecp

• release: Prepare for 0.7.0
• musig/tests: initialize keypair
• build: Refactor visibility logic and add override
• cmake: support the use of launchers in ctest -S scripts
• cmake: configure libsecp256k1.pc during install
• cmake: Emulate Libtool’s behavior on FreeBSD
• cmake: add a helper for linking into static libs
• README: add link to musig example

Core Lightning

• clnrest: add more request and response types
• wss-proxy: replaced by a rust version
• Askrene: prune and cap
• Askrene single path solver
• Askrene algorithm switcher
• askrene: add runtime of getroutes to the logs
• cln-plugin: don’t panic if notification handler returns error
• logs: A basic javascript log viewer
• hsmtool: implement new derivetoremote method
• Document listsendpays amount msat better

eclair

• Add unconfirmed transaction pruning when computing closing balance
• Endorse htlc and local reputation
• Fix flaky 0-conf watch-published event
• Publish hold times to the event stream
• Refactor channel params: extract commitment params
• Stricter Bolt11 invoice parsing
• Keep original features byte vector in Bolt12 TLVs
• Ensure htlc_maximum_msat is at least htlc_minimum_msat
• Use Uint64 for max_htlc_value_in_flight_msat consistently

LDK

• Enable Creation of Offers and Refunds Without Blinded Path
• Demacro process forward htlcs
• Clarify persistence order requirements for async persistence
• offer: make the merkle tree signature public
• LSPS5 implementation
• Async background persistence
• Simplify send htlc
• Remove direct calls to handle_monitor_update_completion!
• Introduce RenegotiatedFundingLocked monitor update variant
• Let BackgroundProcessor drive HTLC forwarding
• add expiry_time to PendingOutboundPayment::StaticInvoiceReceived
• Hold times for successful payments
• Use channel’s real funding amounts when processing RGS data
• Introduce ReceiveAuthKey
• Update fee and dust handling for zero fee channels
• Fulfill hold times rustfmt
• Make channel_type required
• Correct non-dust HTLC accounting in next_remote_commit_tx_fee_msat
• Add Shared Input support in interactive TX construction
• Locktimed packages fixes
• Only mark all mon updates complete if there are no blocked updates
• Introduce SendOnlyMessageHandler trait
• Static invoice server
• Use cost / path amt limit as the pathfinding score, not cost
• (Custom Transactions) Add TxBuilder trait, support fixed additional outputs
• Use inbound SCID alias for blinded path creation
• Introduce splice-compatible commitment update monitor variants
• Async recipient-side of static invoice server
• Rustfmt tests that touch persistence
• Fix update_id gap during force_shutdown
• Fix multiplication overflow when logging hold times.
• Introduce RenegotiatedFunding monitor update variant
• Reduce attribution data hold time resolution to 100 ms

lnd

• Increase the default outgoing bandwidth
• Fix arbitrator deadlock found in ResolveContract
• chancloser: fix flakes in chancloser tests
• graph/db: use /*SLICE:<field_name>*/ to optimise various graph queries
• scripts/keys: remove old expired or revoked keys
• Fix ExtraData field and use BigSize encodine
• sqldb+graph/db: prefix graph SQL objects with “graph_”
• routerrpc: accept mutliple outgoing chan ids in queryroutes
• Add missing FundingTimeoutEvent type to SubscribeChannelEvents RPC
• multi: let all V1Store ForEach* methods take a reset call-back
• lnd+itest: plug in graph SQL migration under test tag & add itest
• rpcserver: return consistent grpc NotFound error for GetChaninfo & LookupInvoice
• (graph mig 3): graph/db: migrate zombies, closed SCIDs, prune log from kvdb to SQL
• Enable quiescence in production and add timeout config
• rpcserver: fix race condition in graph cache eviction
• (graph mig 2): graph/db: migrate graph channels and policies from kvdb to SQL
• Fix Shutdown deadlock in some scenarios
• channeldb: gc fwd packgages which have zero ADDs
• (graph mig 1): graph/db: migrate graph nodes from kvdb to SQL
• contractcourt: only close quit in Stop
• fix switch deadlock
• chainntnfs: export NotifierOptions and internal field for interface use
• multi: prevent goroutine leak in brontide
• AuxTrafficShaper methods use first hop pub key
• refactor+graph/db: refactor preparations required for incoming SQL migration code
• discovery: deterministic bootstrapping for local test networks
• graph/db: explicitly store bitfields for channel_update message & channel flags
• graph/db: let FetchChannelEdgesByID behave as promised
• cmd/wtclient: add usage info for session and terminate commands
• routerrpc: reject payment to invoice that don’t have payment secret or blinded paths
• chainreg: use new lseed service
• lnrpc: remove unused type ConfirmationUpdate
• multi: fix deadlock in p2p race condition
• DynComms (2n): lnwire: add authenticated wire messages for Dyn
• (16) graph/db: SQL closed SCIDs table and last few methods
• routing: clean-up & fix blinded path incoming chained channel logic
• routerrpc: add log line for probing the invoice request
• (15) graph/db: SQL prune log
• chainfee: method to round up the fee for a given transaction weight
• (14) graph/db: implement more SQLStore methods
• (13) graph/db: SQL-ize the zombie index
• sqldb: clarify native sql options in lnd.conf
• (12) graph/db: Implement more graph SQLStore methods
• lntest: do not do IO under mutex in fee_service
• itest: test automatic peer bootstrapping
• lntest: enable neutrino testing with bitcoind

BIPs

• BIP352: be explicit for the input_hash corner case
• bip3: Switch to SPDX identifiers
• 380: Disallow H as a hardened indicator
• bip373: add hyperlinks to other BIPs
• BIP-0388: Fix test vector
• BIP3: Address additional review
• (bip-390): add hyperlinks to BIPs (327, 380, 389, 32)

New Releases

-

Events and Podcasts

-

Mining

-

Miscellaneous

• Augur: An Open Source Bitcoin Fee Estimation Library
• Bitcoin Grants Common Application
• 14-year-old BTC worth $9,000,000,000 moved
• Simplicity LOCKED_IN on Liquid Network
• Jack Dorsey releases BitChat decentralized messenger
• Transactions paying less than 1 s/B fees getting confirmed by Luxor
• Stablecoins and the Future of Payments
• U.S. House of Representatives Announces Week of July 14th as “Crypto Week”
• Qubic Just Mined Monero And Redefined What Proof of Work Can Be
• Galaxy Executes One of the Largest Notional Bitcoin Transactions Ever