Mark “Murch” Erhardt and Mike Schmidt are joined by Ruben Somsen, Salvatore Ingala, and Stéphan Vuylsteke to discuss Newsletter #353.

News

● BIP30 consensus failure vulnerability (0:52)

● Avoiding BIP32 path reuse (28:33)

Bitcoin Core PR Review Club

● Add bitcoin wrapper executable (16:38)

Releases and release candidates

● LND 0.19.0-beta.rc4 (45:01)

Notable code and documentation changes

● Core Lightning #8227 (45:18)

● Core Lightning #8162 (46:43)

● Core Lightning #8166 (47:44)

● Core Lightning #8237 (48:49)

● LDK #3700 (49:28)

● Rust Bitcoin #4387 (49:55)

● BIPs #1835 (50:15)

● BIPs #1800 (55:03)

● BOLTs #1245 (56:37)

Mark “Murch” Erhardt and Sjors Provoost discuss Newsletter #352.

News

● Comparison of cluster linearization techniques (0:41)

● Increasing or removing Bitcoin Core's `OP_RETURN` size limit (6:46)

Releases and release candidates

● LND 0.19.0-beta.rc3 (1:01:16)

Notable code and documentation changes

● Bitcoin Core #31250 (1:02:10)

● Eclair #3064 (1:06:02)

● BTCPay Server #6684 (1:07:46)

● BIPs #1555 (1:10:34)

Mark “Murch” Erhardt and Mike Schmidt are joined by Jonas Nick and Salvatore Ingala to discuss Newsletter #351.

News

● Interactive aggregate signatures compatible with secp256k1 (0:50)

● Standardized backup for wallet descriptors (21:34)

Selected Q&A from Bitcoin Stack Exchange

● Practicality of half-aggregated schnorr signatures? (17:16)

● What's the largest size OP_RETURN payload ever created? (41:17)

● Non-LN explanation of pay-to-anchor? (43:29)

● Up-to-date statistics about chain reorganizations? (48:08)

● Are Lightning channels always P2WSH? (52:33)

● Child-pays-for-parent as a defense against a double spend? (53:40)

● What values does CHECKTEMPLATEVERIFY hash? (59:06)

● Why can't Lightning nodes opt to reveal channel balances for better routing efficiency? (59:32)

● Does post-quantum require hard fork or soft fork? (1:02:27)

Releases and release candidates

● LND 0.19.0-beta.rc3 (1:07:39)

Notable code and documentation changes

● Bitcoin Core #31247 (1:07:58)

● LDK #3601 (1:10:14)

Mark “Murch” Erhardt and Mike Schmidt are joined by Niklas Gögge to discuss ⁠Newsletter #350⁠.

Changes to services and client software

● Bitcoin Knots version 28.1.knots20250305 released (11:26)

● PSBTv2 explorer announced (13:51)

● LNbits v1.0.0 released (14:38)

● The Mempool Open Source Project® v3.2.0 released (15:22)

● Coinbase MPC library released (17:25)

● Lightning Network liquidity tool released (21:20)

● Versioned Storage Service announced (22:25)

● Fuzz testing tool for Bitcoin nodes (1:17)

● Bitcoin Control Board components open-sourced (23:50)

Releases and release candidates

● Bitcoin Core 29.0 (25:13)

● LND 0.19.0-beta.rc2 (34:41)

Notable code and documentation changes

● LDK #3593 (35:04)

● BOLTs #1242 (35:57)

Correction (37:38)

Mark “Murch” Erhardt and Dave Harding are joined by Sebastian Falbesoner, Ruben Somsen, and Abubakar Sadiq Ismail to discuss ⁠Newsletter #349⁠.

News

● SwiftSync speedup for initial block download (0:34)

Bitcoin Core PR Review Club

● Add Fee rate Forecaster Manager (29:33)

Releases and release candidates

● Core Lightning 25.02.1 (46:54)

● Core Lightning 24.11.2 (47:03)

● BTCPay Server 2.1.0 (48:14)

● Bitcoin Core 29.0rc3 (49:25)

● LND 0.19.0-beta.rc2 (51:21)

Notable code and documentation changes

● LDK #2256 (53:52)

● LND #9669 (56:16)

● Rust Bitcoin #4302 (57:24)

Mark “Murch” Erhardt and Mike Schmidt are joined by Jonas Nick, Jameson Lopp, Steven Roose, Gregory Sanders, and Salvatore Ingala to discuss ⁠Newsletter #348⁠.

News

● Educational and experimental-based secp256k1 implementation (1:09)

Changing consensus

● Should vulnerable bitcoins be destroyed? (9:17)

● Securely proving UTXO ownership by revealing a SHA256 preimage (34:52)

● Draft BIP for destroying quantum-insecure bitcoins (44:01)

● Criticism of CTV motivation (51:16)

● CTV+CSFS benefits (1:06:02)

● Benefit of CTV to Ark users (1:24:37)

● OP_CHECKCONTRACTVERIFY semantics (1:31:49)

● Draft BIP published for consensus cleanup (1:58:29)

Releases and release candidates

● BDK wallet 1.2.0 (2:06:03)

● LDK v0.1.2 (2:06:48)

● Bitcoin Core 29.0rc3 (2:07:13)

● LND 0.19.0-beta.rc1 (2:08:36)

Notable code and documentation changes

● Bitcoin Core #31363 (2:09:03)

● Bitcoin Core #31278 (2:09:44)

● Eclair #3050 (2:12:41)

● Eclair #2963 (2:13:54)

● Eclair #3045 (2:14:44)

● LDK #3670 (2:15:47)

● LND #9620 (2:16:24)

Mark “Murch” Erhardt and Mike Schmidt are joined by Sjors Provoost and Antoine Poinsot to discuss ⁠Newsletter #347⁠.

News

● LN upfront and hold fees using burnable outputs (0:54)

● Discussion of testnets 3 and 4 (5:11)

● Plan to relay certain taproot annexes (19:01)

Selected Q&A from Bitcoin Stack Exchange

● Why is the witness commitment optional? (24:58)

● Can all consensus valid 64 byte transactions be (third party) malleated to change their size? (36:39)

● How long does it take for a transaction to propagate through the network? (47:37)

● Utility of longterm fee estimation (49:31)

● Why are two anchor outputs are used in the LN? (54:34)

● Why are there no BIPs in the 2xx range? (57:19)

● Why doesn't Bech32 use the character b? (59:55)

● Bech32 error detection and correction reference implementation (1:00:23)

● How to safely spend/burn dust? (1:02:48)

● How is the refund transaction in Asymmetric Revocable Commitments constructed? (1:07:34)

● Which applications use ZMQ with Bitcoin Core? (42:15)

Releases and release candidates

● Bitcoin Core 29.0rc2 (1:08:21)

● LND 0.19.0-beta.rc1 (1:08:55)

Notable code and documentation changes

● Bitcoin Core #31603 (45:12)

● Eclair #3044 (1:09:45)

● Eclair #3026 (1:10:38)

● LDK #3649 (1:11:02)

● LDK #3665 (1:11:59)

● LND #8453 (1:14:28)

● BIPs #1792 (1:16:00)

● BIPs #1782 (1:16:40)

Mark “Murch” Erhardt and Mike Schmidt are joined by Matt Morehouse, Yong Yu, Alejandro De La Torre, Jan B, and Marco De Leon to discuss ⁠Newsletter #346⁠.

News

● Discussion of LND's dynamic feerate adjustment system (1:24)

Changes to services and client software

● Wally 1.4.0 released (17:17)

● Bitcoin Core Config Generator announced (18:05)

● A regtest development environment container (18:55)

● Explora transaction visualization tool (20:17)

● Hashpool v0.1 tagged (21:35)

● DMND launching pooled mining (24:36)

● Krux adds taproot and miniscript (22:21)

● Source-available secure element announced (23:01)

● Nunchuk launches Group Wallet (45:04)

● FROSTR protocol announced (46:03)

● Bark launches on signet (46:57)

● Cove Bitcoin wallet announced (48:43)

Releases and release candidates

● Bitcoin Core 29.0rc2 (50:38)

Notable code and documentation changes

● Bitcoin Core #31649 (1:03:19)

● Bitcoin Core #31283 (37:27)

● Eclair #3037 (1:15:29)

● LND #9546 (1:16:33)

● LND #9458 (1:17:17)

● BTCPay Server #6581 (1:18:10)

● BDK #1839 (1:20:59)

● BOLTs #1233 (15:39)

Mark “Murch” Erhardt and Mike Schmidt are joined by Sindura Saraswathi, Christian Kümmerle, and Stéphan Vuylsteke to discuss Newsletter #345.

News

● P2P traffic analysis (1:35)

● Research into single-path LN pathfinding (6:45)

● Probabilistic payments using different hash functions as an xor function (21:17)

Bitcoin Core PR Review Club

● Stricter internal handling of invalid blocks (26:12)

Releases and release candidates

● Eclair v0.12.0 (37:49)

Notable code and documentation changes

● Bitcoin Core #31407 (38:52)

● Eclair #3027 (43:22)

● Eclair #3007 (44:17)

● Eclair #2976 (44:57)

● LDK #3608 (47:17)

● LDK #3624 (48:12)

● LDK #3016 (50:28)

● LDK #3629 (52:15)

● BDK #1838 (53:06)

Mark “Murch” Erhardt and Mike Schmidt are joined by Matt Morehouse, Matt Corallo, and Hunter Beast to discuss Newsletter #344.

News

● Disclosure of fixed LND vulnerability allowing theft (0:57)

● Discussion about Bitcoin Core's priorities (10:49)

Changing consensus

● Bitcoin Forking Guide (1:01:11)

● Update on BIP360 pay-to-quantum-resistant-hash (P2QRH) (34:37)

● Private block template marketplace to prevent centralizing MEV (21:06)

Releases and release candidates

● Core Lightning 25.02 (1:09:57)

Notable code and documentation changes

● Eclair #3019 (1:11:21)

● Eclair #3016 (1:12:05)

● LDK #3342 (33:13)

● Rust Bitcoin #4114 (1:12:50)

● Rust Bitcoin #4111 (1:14:29)

● BIPs #1758 (1:15:09)

● BIPs #1750 (1:17:07)

● BIPs #1712 (1:18:10)