Thanks to Ordimint for sponsoring food and drinks for this meetup!

Special: Liquid Hack

• Liquid got got!
• Current understanding of the Liquid hack
• More details
• Liquid hack explanation by Amboss
• Liquid/Blockstream chat history

Special: CISA

• BIP458: Half-Aggregation of BIP 340 Signatures
• BIP459: DahLIAS fully aggregated signatures for secp256k1
• BIP460: CISA for Taproot Key Path Spends
• CISA in Bitcoin Core
• CISA and PQC
• CISA companion bip drafts

Security/CVEs/InfoSec/Research

• Enabling Threshold Custody for the Lightning Network with Nested Threshold Multi-Signatures
• Crashing a lightning node with a flood of pings
• CLN vulnerability fix rollout
• RosettaBitcoin: An Artifact-Backed Experience Report on Verification Infrastructure for Agent-Assisted Consensus Validators
• Cryptocurrencies in the Quantum Age: Migration Paths to PQC
• BMuSig2: Schnorr-Compatible Blind Multi-Signatures
• Extracting and Verifying Illicit Bitcoin Addresses from Underground Forum Discussions
• Non-Interactive Translation of Winternitz Signatures to Lamport Signatures via Secret Sharing
• Scalable Exact Path Selection via Structure-Aware Search for Virtual Payment Channels
• Improved Collision Attack on RIPEMD-160
• A General Approach to Adaptor Signatures
• Scaling the Lightning Network with Practical Set Reconciliation

Network Data

• Address Relay under stress
• Address Relay under stress: Attack Characteristics and Measuring Its Effects
• Passive Traffic Analysis of Bitcoin P2P v2
• Unreachable addresses in Bitcoin GETADDR responses
• Pesquisa Dashboard

Local/Legal

• Museum of Satoshi

Miscellaneous

• BIP300/Ecash fork keeps getting postponed
• rBitcoin
• Another Coldcard analysis
• HRF grants 5 BTC to 16 freedom tech projects
• Test Bitcoin Core App preview
• Self-custody trilemma
• Trezor shipping provider data breach
• PDK 1.0
• Nation State Bitcoin Adoption report
• Conduition on mapping Bitcoin’s post-quantum landscape
• BIP110 post mortem
• Peach is at a crossroads
• nix-bitcoin final version
• Bitcoin at Block open roadmap

Mailing Lists

bitcoin-dev

• DropKick ⚽️ - A minimal commit/reveal PQ rescue protocol
• static-pie release binaries available for testing

Delving Bitcoin

• Universal opt-in replay protection?
• Transaction rate-limiting

Pull requests

BIPs, BOLTs and Proposals

• BIP ???: SHRINCS: A Compact Hash-Based Signature Scheme

Bitcoin Core

• txindex: hash keys and pack positions to reduce disk usage #35531
• wallet: derivehdkey RPC to get xpub at arbitrary path #32784
• fees: Introduce Mempool Based Fee Estimation to reduce overestimation #34075
• wallet: store all witness variants of a transaction #35501
• wallet: avoid a crash when creating a wallet with -nosettings #36176
• miner: Enforce Murch-Zawy rule (BIP54) #35949

LND

• peer: bound peer-controlled resource growth #11090
• Add Outbound Remote Signer implementation #8754

Core Lightning

• Askrene and xpay improve #9150
• wallet: add bwatch-backed output and transaction tables #9298

Eclair

• Fix several on-the-fly-funding bugs #3351
• Reject messages that include the wrong type of signatures #3368

BDK/rust-bitcoin & LDK/rust-lightning

• primitives: Apply the witness item size limit to every element #6642

Others

• HWI: Future of this repo #850

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Note: There will be a partial solar eclipse during the meeting and we may take a break and step outside for a while.

Special: BIP110

• BIP110 Situation Monitor
• BIP110 Signaling
• Current user agents on the network
• Choosing the Core chain? Here is how to switch
• Does a soft fork always succeed?
• Testnet4 picks new PoW Algorithm

Special: Coldcard Hack and Fallout

• Full panic - one of my wallets was drained
• Kevin Loaec post
• Rob Hamilton post
• Predictable RNG Fallback and 32-Bit Reseed in COLDCARD Firmware
• Technical Deep Dive into the Entropy Issue
• Wizardsardine Report on ColdCard
• Wizardsardine Deep Dive
• Entropy visualizer
• Coldcard Watch
• CK Tripwire
• Security Advisory: Update BTCPay Server to 2.4.2 Immediately
• Red Teaming Bitcoin

Security/CVEs/InfoSec/Research

• Vulnerability Disclosure: Twin Memory Exhaustion DoS Vulnerabilities in Core Lightning
• MPFlow: Learning Budgeted Max-Flow Optimization on the Lightning Network with Deep Graph Reinforcement Learning
• How Reliable Is the Multi-Input Heuristic for Bitcoin Address Clustering in Law Enforcement Contexts?
• Decentralization and Governance in IoT: Bitcoin and Wikipedia Case
• Open Bitcoin Metrics: Verifiable Full-Node-Derived Bitcoin Time Series for Economic Research
• Bitcoin Mempool Linearization
• Strategies for quantum-enabled Bitcoin miners
• Optimizing Reward Mechanism in Pay-Per-Last-N-Shares Mining Pools under Block Withholding Attacks
• Unruly by Design: Fee Volatility and Strategic Attacks in Bitcoin Mining
• Searching for SHRINCS Parameters

Network Data

• Nodes OS Fingerprint analysis

Local/Legal

• Russian State Duma passes law on regulation of digital currencies, digital rights
• ARD Doku: Der Krypto-Krieg - Wie Putin uns mit Bitcoins bekämpft
• Brivat Bitcoin Privacy event in Berlin

Miscellaneous

• Notice of ICANN .bitcoin TLD community application
• Bitcoin Antithesis
• Introducing Bedrock: A Deterministic Hypervisor
• Working on incremental snapshots
• Bitcoin Security Consortium
• BitMEX shuts down
• ElectrumX 2.0 release
• First StratumV2 block mined
• Boltz disabled until further notice
• Post-Mortem: What Happened Between Samourai Wallet and Me
• Bitdevs Map
• Orange Juice
• Polymarket accepts lightning via Spark

Mailing Lists

bitcoin-dev

• Motion to remove Luke Dashjr from BIP Editors
• BIP Proposal: Stale Tip Relay

Delving Bitcoin

• Libshrincs: A C implementation with a machine-checked security proof
• Segwit commitment to post-quantum witness data?
• PQC output type discussion
• Expiring HTLCs without free relay

Pull requests

BIPs, BOLTs and Proposals

• BIP458: Half-Aggregation of BIP 340 Signatures
• BIP459: DahLIAS fully aggregated signatures for secp256k1
• BIP460: CISA for Taproot Key Path Spends

secp256k1

• SECURITY.md: remove Jonas Nick from trusted keys #1884
• Make theStack a maintainer and a security contact #1887
• Add “silentpayments” module implementing BIP352 (take 4, limited to full-node scanning) #1765
• Silent Payments decrypt later

Bitcoin Core

• p2p: Replace per-peer transaction rate-limiting with global rate limits #34628
• validation: fetch block input prevouts in parallel during ConnectBlock #35295
• wallet: Add exportwatchonlywallet RPC to export a watchonly version of a wallet #32489
• rpc: support a formal description of our JSON-RPC interface #34683
• p2p: Increase inbound capacity for block-relay only connections #28463
• wallet: store all witness variants of a transaction #35501

LND

• bolt12: add InvoiceRequest codec and structural validators #10832

Core Lightning

• Renepay too far #9324
• wallet: add bwatch-backed output and transaction tables #9298

BDK/rust-bitcoin & LDK/rust-lightning

• p2p: Add support for BIP434 feature message #6364

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• TwoStepDemocracy: Prototyping of self-evolving, democratic, and decentralized systems
• HOWLR: A Client-Driven Approach to BGP Hijack Detection
• LND Gossip Nil-Map Panic on Zero-Timestamp Messages
• Researchers Create Self-Replicating Seedbox in Quest for Decentralized Democracy
• No Country for Old Privacy: The Evolving Challenges of Anonymity in Bitcoin

Network Data

• Bitnod.es
• ASMap Dashboard preview
• ASMap Web

Miscellaneous

• Announcing the Monetization Gateway: charge for any resource behind Cloudflare via x402
• Dog Park - Privacy in Bark
• Botanix L2 shuts down
• Taproot Hidden Paths statistics discussion
• Reverse Engineering Canaan Avalon Nano3S
• Cornell Bitcoin Club
• Rusty leaving Blockstream and core-lightning
• Centure Metadata
• PlebGPT
• Open Standard Open USD
• BIP110 to happen before our next meetup
• On the Lack of Replay Protection

Mailing Lists

bitcoin-dev

• Aligning privacy incentives in P2MR
• Giving teeth to expected EC disabling: P2XX(-T)(-ML)
• BIP draft: Full-Aggregation of BIP 340 Signatures

Delving Bitcoin

• Public key recovery for EC leaves in P2MR (BIP-360)
• Bird of Prey 2: non-malleable Schnorr + PQ signatures

Pull requests

BIPs, BOLTs and Proposals

• BIP95: Testnet 5 #2196
• BIP448 Collected Work + Tools

Bitcoin Core

• BIP 434 Support: Peer feature negotiation #35221
• Replace libevent with our own HTTP and socket-handling implementation #35182
• Full Libevent removal #34411
• rpc, wallet: add an option to not load the wallet after migrating #35266

LND

• lnwallet+walletrpc: add WalletKit.SubmitPackage for v3 CPFP package relay #10900
• bolt12+lnwire: add codec foundation with Offer message #10789

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• Ark: Offchain Transaction Batching in Bitcoin
• Security Analysis of Bitcoin’s V2 Transport Protocol: Exploiting Design Implications for Sustained Eclipse and Downgrade Attacks
• Predicting Channel Closures in the Lightning Network with Machine Learning
• Probabilistic Atomic Swaps for Bitcoin and Friends
• Trezor response: TROPIC01 chip disclosure
• Bitcoin Core CVE-2024-52911 - Script Interpreter Remote Crash
• Private Broadcast May Reveal Sender IP Address in Bitcoin Core 31.0
• Zcash: The Orchard Counterfeiting Vulnerability
• We found a stable Firefox identifier linking all your private Tor identities
• Matching Hashes: Reproducing the Guix-built Bitcoin Core release binary with Nix
• Mined in America Act Would Put Bitcoin Network at Risk
• LNTest: A Testbed for Evaluating Bitcoin Lightning Network-Based Botnets
• Bitcoin After Block Rewards

Network Data

• OP_RETURN Data Status
• What data to collect and monitor during the BIP-110 & BIP-300 forks in August 2026?

Local/Legal

• Fremde Bitcoin per Gerichtsurteil? Kläger wollen Eigentum an fast 40.000 Wallets
• Bitcoin Bundesverband: Pro Haltefrist
• Bitcoin Privacy event ₿rivat

Miscellaneous

• Tor Internetfreedom donation
• Quantum Attack Game Theory
• Conduition funded by Brink
• CoreDev Transcripts
• 2140 annual report
• HRF: Bitcoin for Non-Profits
• Localhost Mining Unit
• Burak: Introducing Cube
• Fuzz Testing Research Interns: Dongjia Zhang and Stratos
• BOSS Challenge Protfolio Projects
• Bark Mainnet Launch
• Secure Fountain Codes
• Roulette in a Bitcoin Payment Channel
• Toughts on Gaming on Bitcoin
• Bitcoin Manga
• Kick Sats
• ChainQuery: Bitcoin Fee Pressure
• LearnBitcoin Journey

Mailing Lists

bitcoin-dev

• BIP Draft: Testnet 5
• A Post-Quantum Path for BIP 324
• BIP Draft: P2P UTXO Set Sharing
• 64-Byte Transactions and Potential Legitimate Uses
• Prohibit Merkle Internal Node Preimages That Encode Minimal 64-Byte Transactions

Delving Bitcoin

• TCP hole punching for Bitcoin nodes behind home NATs?
• Vulnerability Disclosure: Assertion DoS in Core Lightning

Pull requests

Bitcoin Core

• net: use the proxy if overriden when doing v2->v1 reconnections #35410
• BIP 323: reserve version bits 5-28 as extra nonce space #34779
• coinselection: Optimize BnB exploration #32150
• mining: add submitBlock to IPC Mining interface #34644

LND

• funding: require explicit taproot channel negotiation #10820

Core Lightning

• Payer proofs #9116
• neutrino: add fast initial sync via header import #10552

Eclair

• Add support for zero-fee commitment format #3192

Others

• Ensure the seed isn’t leaking to user with can sign permission #7354
• feat: Add multisig wallet setup #7218

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• CVE-2024-52911 - Script Interpreter Remote Crash
• Quantum Safe Bitcoin (QSB)
• Introducing THINCS
• Inertial Mining: Equilibrium Implementation of the Bitcoin Protocol
• The Stakeholder Equilibrium: Bitcoin Core As Live Player
• NIST: Additional SLH-DSA Parameter Sets for Limited Signature Use Cases
• Temporary Power Adjusting Withholding Attack
• A Model and Estimation of the Bitcoin Transaction Fee
• Pruning Hypertrees for the Lax and Lazy
• Financial micro-incentives and internet discourse: Evidence from a Bitcoin based discussion platform
• Ledger hardware implant teardown
• localhost: Post Quantum Cryptography Group
• Litecoin Fork/Bug Postmortem
• Two new Electrum security advisories
• bisq bug

Network Data

• Current BIP-110 signaling
• BIP-54: Block propagation and validation duration during slow-to-validate blocks on Signet

Local/Legal

• Deutsche Börse Group erwirbt Beteiligung an Kraken für 200 Millionen US$
• Grüne: Entwurf eines Gesetzes zum Schließen einer Gerechtigkeitslücke bei der Besteuerung von Kryptowerten
• Linke: Kryptowerte streng regulieren und gerecht besteuern
• Frank Schäffler (FDP) in Welt: Jetzt greift der Staat nach dem Bitcoin
• Bitcoinsteuer.lol

Miscellaneous

• Knotzi Death March
• RIP Bitnodes
• Loupe
• Ecash.com - BIP300 Fork
• Annoucement
• Fuzzamoto: Non-Determinism
• Who wrote Bitcoin?
• Spiral: Metacognition is the AI Skill of the future. Always has been.
• BitMex: Avoiding An Unnecessary Quantum Freeze
• Movie: Bitcoin: Killing Satoshi
• Tether announces MDK, Bitcoin mining development kit
• New BitKey with screen
• New Blockstream Jade Core
• Clara now part of Alloc Init
• Bitcoin research price 2026 nomination
• Mara foundation
• Master in Bitcoin
• I Read Every Bitcoin Quantum Proposal. Here’s Where We Actually Are.
• Project Eleven Awards 1 BTC Q-Day Prize for Largest Quantum Attack on Elliptic Curve Cryptography to Date
• The predictable failure of the QDay Prize
• LDK Server
• Kraken extortion/leak

Mailing Lists

bitcoin-dev

• Post-Quantum BIP-86 Recovery via zk-STARK Proof of BIP-32 Seed Knowledge
• In defense of a PQ output type
• Formal verification of secp256k1 modular scalar multiplication
• Post Quantum HD Wallets with fallback SPHINCS keys

Delving Bitcoin

• Fingerprinting nodes: Possible Solutions
• Binary Fuse filters as an alternative to BIP 158 GCS
• Onion Message Jamming in the Lightning Network
• Public Fraud Proofs for Just-in-Time Channels
• Towards A K-of-N Lightning Network Node

Pull requests

BIPs, BOLTs and Proposals

• BIP-XXXX: PQC Precommitment for Post-Quantum Migration
• BIP-361: Post Quantum Migration and Legacy Signature Sunset
• BIP: 322: Generic Signed Message Format
• BIP440: Varops Budget for Script Runtime Constraint, BIP441: Restoration of disabled Script (tapleaf 0xc2) #2118
• BIP451: Dust UTXO Disposal Protocol

Bitcoin Core

• Bitcoin Core 31.0 release notes
• Implement BIP 370 PSBTv2 #21283
• Export embedded ASMap RPC #33920
• Rollback for dumptxoutset without invalidating blocks #33477
• kernel: add context‑free block validation API (btck_check_block_context_free) with POW/Merkle flags #33908
• kernel: Expose CheckTransaction consensus validation function #33796

LND

• multi: implement awareness of the final/production taproot channel variant #9985
• onionmessage+peer: rate-limit incoming onion messages per-peer and globally #10713

Core Lightning

• splice: Take splice out of experimental mode! #9021

Eclair

• Use official feature bit for option_simple_taproot #3144
• Add support for the official splicing protocol #2887

BDK/rust-bitcoin & LDK/rust-lightning

• Add unannounced_channel_max_inbound_htlc_value_in_flight_percentage #4529

Others

• Final release of joinmarket-clientserver

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• Isogenies
• Compact Isogeny PQC can replace HD wallets, key-tweaking, silent payments
• Bitrefill hacked
• Bachelor thesis: Entwicklung eines Vertriebsmodells für Bitcoin
• DIBA: Effective Transaction Topology-Based Detection of Illicit Bitcoin Addresses
• BitMEX Research: Attack Blocks
• Purify
• Securing Elliptic Curve Cryptocurrencies against Quantum Vulnerabilities: Resource Estimates and Mitigations
• Shor’s algorithm is possible with as few as 10,000 reconfigurable atomic qubits
• SHRIMPS: 2.5 KB post-quantum signatures across multiple stateful devices
• BitSov: A Composable Bitcoin-Native Architecture for Sovereign Internet Infrastructure

Network Data

• Two block reorg and delayed relay
• DNS Seeder Analysis
• Stale block dataset
• Largest ever absolute difficulty increase

Local/Legal

• Kryptolücke vs. Kryptolüge

Miscellaneous

• SuperScalar
• Production Ready
• Localhost research: Transparency Report 003
• How Wallet Fingerprints Damage Payjoin Privacy
• Am I exposed block explorer
• Brink’s 2025 Engineering Impact Report
• Building Bitcoin Through In-Person Developer Retreats
• Bitcoin hardware wallet with metal punch card
• OpenSats: 5 Grants to Strengthen Bitcoin Development
• OpenSats: Seventeenth Wave of Bitcoin Grants
• Bitcoin++ Exploits Hackathon
• VPACK
• Park
• Bitcoin knowledge base
• Chicago Bitcoin Collective

Pull requests

BIPs, BOLTs and Proposals

• BIP440: Varops Budget for Script Runtime Constraint, BIP441: Restoration of disabled Script (tapleaf 0xc2) #2118

Bitcoin Core

• Bump dbcache to 1 GiB #34692
• tor: enable PoW defenses for automatically created hidden services #33414
• kernel: Add API getter functions for timelock fields (nLockTime, nSequence)
• bitcoin-cli: Add -ipcconnect option #32297

LND

• multi: add taproot support to the new RBF close flow #10063

Core Lightning

• Splice: Add splicein command #8856

Eclair

• Add per-peer profit scoring #3247

BDK/rust-bitcoin & LDK/rust-lightning

• Unify splice and RBF APIs #4486

Others

• Make SHA256 compression runtime pluggable #1777

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• Nested MuSig2
• Lattice HD Wallets: Post-Quantum BIP32 Hierarchical Deterministic Wallets from Lattice Assumptions
• sqisign
• Binohash: Transaction Introspection Without Softforks
• Bitcoin Under Stress: Measuring Infrastructure Resilience 2014-2025
• On the Effectiveness of Mempool-based Transaction Auditing
• Fix the money, fix the world: bitcoin as techno-libertarian religion
• GPU-Accelerated Bitcoin Key Recovery from Weak Entropy Sources
• Unfaithful Claims: Breaking 6 zkVMs
• Ghana’s Gold Curse and Extractive Mechanisms in Neocolonialism
• Bitcoin PIPEs v2
• WOTS-Tree: Merkle-Optimized Winternitz Signatures for Post-Quantum Bitcoin
• How To Make Delegated Payments on Bitcoin: A Question for the AI Agentic Future
• Taler as a synthetic Central Bank Digital Currency
• Proof of work: what Bitcoin mining really does

Network Data

• Recent OP_RETURN output statistics

Local/Legal

• FAZ: Milliarden-Steuerprivileg für den Bitcoin
• South Korea: National Tax Service Coins Stolen Twice After Mnemonic Code Leak
• Polis closes

Miscellaneous

• Proposal: Consensus rule to recover 79,956 BTC stolen from MtGox
• Knots Lies
• Knots bug
• Bitcoin Core Github Stats
• Proof of work: what Bitcoin mining really does
• Hierarchical determinism: how Bitcoin’s HD wallets are born
• Brink Fuzzing Infra Dashboard
• Sigbash v2
• First BIP54 block
• Mastering Taproot
• Programming Lightning
• River Bitcoin Adoption 2026
• Mitigating The Impact Of The Quantum Freeze
• L402Apps
• South Korean crypto exchange races to recover $40bn of bitcoin sent to customers by mistake
• Open-Source Agents Need to Get Serious About Payments
• Alby Bitcoin Payments Agent Skill
• Lightning Agent Tools
• SatsAPI

Mailing Lists

bitcoin-dev

• BIP-352: Limiting the number of per-group recipients (K_max)
• BIP Draft: 24 bits for nVersion nonce space instead of 16
• Algorithm Agility for Bitcoin to maintain security in the face of quantum and classic breaks in the signature algorithms
• The limitations of cryptographic agility in Bitcoin

Delving Bitcoin

• Writing Fuzz Targets for Wallets: Avoiding Known Issues
• Introducing UltrafastSecp256k1: A Multi-Architecture Exploration of Secp256k1 Optimizations
• The future of the Bitcoin Core GUI

Pull requests

BIPs, BOLTs and Proposals

• BIP442: OP_PAIRCOMMIT #1699
• BIP128: Timelock-Recovery Storage Format #2068
• BIP 360 - Pay to Merkle Root (P2MR) #1670
• BIP 89: Chain Code Delegation for Private Collaborative Custody #2004

Bitcoin Core

• Add a “tx output spender” index #24539
• build: Embedded ASMap: Build binary dump header file #28792
• rpc,net: Add private broadcast RPCs #34329
• mining: Break compatibility with existing IPC mining clients #34568
• Cluster mempool: SFL cost model (take 2) #34616

LND

• payments: SQL backend implementation series#10604

Core Lightning

• No more legacy onion support #8772
• Prioritize private channels when relaying payments #3248

Eclair

• Plugin validation of interactive transactions #3258

BDK/rust-bitcoin & LDK/rust-lightning

• Support payments for less than the total MPP value #4373
• Add spent/created_txouts to SPK and Keychain TxOut indexes #2081
• Prevent HTLC double-forwards, prune forwarded onions #4303
• Default to anchors and remove automatic channel acceptance #4354

Others

• HWI: psbt: add MuSig2 fields #784

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• Argo MAC: Garbling with Elliptic Curve MACs
• Ideal group
• Hardware-Friendly Robust Threshold ECDSA in an Asymmetric Model
• BABE: Verifying Proofs on Bitcoin Made 1000x Cheaper
• Curls, caves, and shadows: how cryptocurrencies thrive in (poly)crisis
• Dakar: A CoinJoin forensic software
• OptiBridge: A Trustless, Cost-Efficient Bridge Between the Lightning Network and Ethereum
• CVE-2026-0915: GNU C Library Fixes A Security Issue Present Since 1996

Network Data

• Ongoing Attack on I2P Network Causing Degraded Performance
• State of Iran Blackout

Local/Legal

• Tagesschau: Erfüllt Bitpanda die Vorgaben der Finanzaufsicht?
• How “Bitcoin Jesus” Avoided Prison, Thanks to One of the “Friends of Trump”

Miscellaneous

• Spirals Flint AI Vibe code comunity
• FIBRE Network resurrection
• BTrust BitDevs Playbook
• OpenSats Year In Review
• Bitcoin PIPEs v2: Covenants and ZKPs on Bitcoin via Witness Encryption
• NXP SE050 Hardware Bitcoin Wallet
• Bitcoin in Epstein emails
• Orange Dev Tracker
• Kompaktor
• Windfish
• SSB Playground
• Magnolia DLC Oracle
• hArk
• Taproot Quantum Spend Paths
• Citrea Mainnet Launch
• Janusz L2 Reviews
• Amigo
• 39C3 - To sign or not to sign: Practical vulnerabilities in GPG & friends

Mailing Lists

bitcoin-dev

• Falcon Post-Quantum Signature Scheme Proposal

Delving Bitcoin

• Incremental mutation testing in the Bitcoin Core
• A Mathematical Theory of Payment Channel Networks
• Hornet UTXO(1): A custom, constant-time, highly parallel UTXO database
• SHRINCS: 324-byte stateful post-quantum signatures with static backups
• Bitcoin Lightning Wallets as Abstracted Accounts in EVM Protocols
• BIP 119 CTV activation client

Pull requests

BIPs, BOLTs and Proposals

• BIP 434: Peer Feature Negotiation#2076
• BIP 433: Add P2A BIP#1982
• BIP 110
• BIP 110 UASF
• BIP110 Nodes

Bitcoin Core

• drop my key from trusted-keys#34517
• Package Relay Project Tracking
• RFC: Erlay Conceptual Discussion #34542
• Broadcast own transactions only via short-lived Tor or I2P connections
• p2p: Allow block downloads from peers without snapshot block after assumeutxo validation
• kernel: Add block header support and validation

LND

• rpcserver: use protocol max for fundMax, not maxChanSize#10488
• multi: update close logic to handle re-orgs of depth n-1, where n is num confs - add min conf floor#10331

Core Lightning

• askrene: add auto.include_fees layer#8824

Eclair

• Add event for failed payment relay#3244

BDK/rust-bitcoin & LDK/rust-lightning

• primitives: reject transaction with duplicate inputs#5402
• Add median-time-past (MTP) calculation to CheckPoint#2037
• primitives: reject txs with output sum > MAX_MONEY#5443
• primitives: reject transactions with 0 outputs#5470

Others

• Silent Payments module: discussion about different scanning approaches (BIP, LabelSet, hybrid) #1799

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• Bitmex: 64 byte transactions
• Making Bitcoin Speak Human
• Dissertation: Kryptografisches Vermögen und der Erbfall
• Geolocated Lightning Network topology snapshots: A dataset covering 2019–2023
• Improved Semi-Free-Start Collision Attacks on RIPEMD-160
• How And Why We Hacked Cypherock Hardware Wallet: The Full Story
• Blockstream Jade Security Disclosure
• Sabotaging Bitcoin
• Bitcoin Security
• Toward Thermodynamic Reservoir Computing: Exploring SHA-256 ASICs as Potential Physical Substrates
• Efficient Bitcoin Meta-Protocol Transaction and Data Discovery Through nLockTime Field Repurposing
• Determining Blockchain Transaction Timing and Fee with Observable Mempools
• Bitcoin-IPC: Scaling Bitcoin with a Network of Proof-of-Stake Subnets
• Wallet Migration Failure May Delete Unrelated Wallet Files In Bitcoin Core 30.0 and 30.1

Network Data

• Lopp 2025 Bitcoin Statistics
• 2025 Bitcoin Node Performance Tests

Local/Legal

• Krypto-Gewinne werden ab heute automatisch erfasst: Das erfahren die Finanzämter

Miscellaneous

• OpenSats canary
• Bitmap minter
• 8M investment in Speedwallet
• Bitcoin Design Impact Initiatives 2026
• Making Bitcoin speak human
• Signingroom: Stateless Bitcoin multisig coordination layer
• Optech Year-in-Review
• Bindex
• Small-Time Crypto Investors Are Facing Violent Attacks
• Fuzzamoto: Introduction
• Distributed Charge - EV Now Available For Public Testing
• 64-byte Transactions
• Fedi goes open source
• Take the Money and Run (OneCoin TV show)

Mailing Lists

bitcoin-dev

• Peer Feature Negotiation
• Follow-up regarding Motion to Activate BIP 3

Delving Bitcoin

• Understanding and Mitigating a OP_CTV Footgun: The Unsatisfiable UTXO
• OP_CC: A simple introspection opcode to enable cheaper consolidations
• Modifying BIP54 to Support Future nTime Soft Fork
• Ark as a Channel Factory: Compressed Liquidity Management for Improved Payment Feasibility
• Vanadium: A Virtualized Secure Enclave for Hardware Signing Devices
• Building a vault using blinded co-signers

Pull requests

Bitcoin Core

• Add sedited to trusted-keys #34236
• Wallet migration bug
• Bitcoin Core 30.2 release
• wallet: fix unnamed legacy wallet migration failure #34156
• wallettool: fix unnamed createfromdump failure walletsdir deletion #34215
• Replace cluster linearization algorithm with SFL #32545
• rest: allow reading partial block data from storage #33657

LND

• multi: add BuildOnion, SendOnion, and TrackOnion RPCs #9489

Core Lightning

• xpay: payment description #8784

Eclair

• Accountable HTLCs #3217

BDK/rust-bitcoin & LDK/rust-lightning

• feat: Address::p2a #5379

Others

• BTCPayServer: Subscription API #7022

Thanks to Ordimint for sponsoring food and drinks for this meetup!

Security/CVEs/InfoSec/Research

• An Independent Security Audit of Bitcoin Core
• Hash-based Signature Schemes for Bitcoin
• Golden: Lightweight Non-Interactive Distributed Key Generation
• Payment-failure times for random Lightning paths
• When Can You Trust Bitcoin? Value-Dependent Block Confirmation to Determine Transaction Finality
• The Time to Consensus in a Blockchain: Insights into Bitcoin’s “6 Blocks Rule”
• Multiple Sides of 36 Coins: Measuring Peer-to-Peer Infrastructure Across Cryptocurrencies
• Incentive Attacks in BTC: Short-Term Revenue Changes and Long-Term Efficiencies
• A spatial analysis of the use of Bitcoin as a medium of exchange
• Bitcoin Hashrate Dynamics: Price, Revenue Correction, and Evolution - A Time-Varying Parameter SVAR Stochastic Volatility Analysis
• Masterthesis: Strategische Nutzung von Bitcoin Mining in Unternehmen
• Shai Hulud Launches Second Supply-Chain Attack

Network Data

• Many connections to bitproject.io nodes?
• >60% spy-peers connected to freshly setup node

Local/Legal

• Bitcoin und Nostr als Werkzeuge des demokratischen Widerstands
• Berlin Manifesto of the World Liberty Congress
• Bericht Libertarismus/extreme Rechte mit Roman Reher, Joana Cotar, Marc Friedrich
• KYC: Volle Verifizierung bei Pocket
• Berlin Bitcoin Mining meetup Thursday, December 11
• Wirecard Scandal: Fresh Leads Point to a Gambling Kingpin
• BTC is money
• Petition to pardon Samourai Wallet devs (case background)

Miscellaneous

• Project 11
• Quantum Doomsday Clock
• RawBit Tool
• Penlock
• Mempal Android App
• Miniscript Studio
• BOSS Challenge: Applications open
• BNOC Forum
• Bitcoin Core Roadmap question
• Keymeld
• Ordiknots

Mailing Lists

bitcoin-dev

• Motion to Activate BIP 3
• Benchmarking Bitcoin Script Evaluation for the Varops Budget (GSR)

Delving Bitcoin

• Consensus bug on NBitcoin: out-of-bound issue in Remove()
• Propagation Delay and Mining Centralization: Modeling Stale Rates
• Disclosure: Critical vulnerabilities fixed in LND 0.19.0

Pull requests

Bitcoin Core

• Cluster mempool #33629
• init: completely remove -maxorphantx option #33872
• chainparams: remove dnsseed.bitcoin.dashjr-list-of-p2p-nodes.us #33723

LND

• multi: add upfront-shutdown-address to lnd.conf. #9432

Core Lightning

• Fix the long-elusive “sometimes we miss utxo spends” bug. #8735
• Add Experimental no-MPP, Lsp-Trusts-Client LSPS2 Support #8569
• hsmd: fix HSM sent an unknown message type error #8728

Eclair

• Fix reconnection to clearnet addresses via Tor #3054

BDK/rust-bitcoin & LDK/rust-lightning

• Add support for Testnet4 #4148
• feat(chain): add new list_ordered_canonical_txs method #2027
• Enforce Trampoline Constraints (replacement) #4226

Others

• Electrum protocol 1.6: minimal update to get broadcast_package out
• Monetization #6986