Bitcoin Optech Podcast

Mark “Murch” Erhardt and Mike Schmidt are joined by Jesse Posner and ZmnSCPxj to discuss  Newsletter #233 . News Non-interactive LN channel open commitments (3:20) Releases and release candidates BDK 0.26.0 (54:27) HWI 2.2.0-rc1 (55:55) Notable code and documentation changes Eclair #2455 (56:56)

Mark “Murch” Erhardt and Mike Schmidt are joined by Peter Todd to discuss  Newsletter #232 .

Mark “Murch” Erhardt and Mike Schmidt are joined by Dave Harding to discuss  ⁠Newsletter #231⁠ . January Stateless invoices (7:37) Legal defense fund (11:21) February Fee sponsorship (12:45) Phantom node payments (15:14) March LN pathfinding (17:37) Zero-conf channels (21:12) Summary 2022: Replace-By-Fee (24:02) April Silent payments (31:17) Taro (35:06) Quantum-safe key exchange (45:29) May MuSig...

Mark “Murch” Erhardt and Mike Schmidt are joined by Ben Carman and Joost Jager to discuss  Newsletter #230 . News Factory-optimized LN protocol proposal (2:34) Local jamming to prevent remote jamming (9:28) Monitoring of full-RBF replacements (29:17) Changes to services and client software Lily Wallet adds coin selection (38:57) Vortex software creates LN channels from a coinjoin (41:42) Mutiny de...

Mark “Murch” Erhardt and Mike Schmidt are joined by Greg Sanders and Larry Ruane to discuss  Newsletter #229 .

Mark “Murch” Erhardt and Mike Schmidt discuss  Newsletter #228 . News Reputation credentials proposal to mitigate LN jamming attacks (00:33) Releases and release candidates LND 0.15.5-beta.rc2 (20:33) Core Lightning 22.11rc3 (21:29) Notable code and documentation changes Core Lightning #5727 (26:41) Eclair #2499 (28:32) LND #7122 (36:09) LDK #1852 (41:51) Libsecp256k1 #993 (55:02)

Mark “Murch” Erhardt and Mike Schmidt discuss  Newsletter #227 .

Mike Schmidt is joined by Salvatore Ingala and Clara Shikhelman to discuss  Newsletter #226 .

Mark “Murch” Erhardt and Mike Schmidt discuss Newsletter #225 . News Continued discussion about enabling full-RBF (0:54) Block parsing bug affecting multiple software (14:36) Bitcoin Core PR Review Club Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 non-witness bytes (19:32) Releases and release candidates Rust Bitcoin 0.28.2 (28:41) Bitcoin Core 24.0 RC3 (29:40) Notable code and documentation change...

Mark “Murch” Erhardt and Mike Schmidt are joined by Bastien Teinturier and Joost Jager to discuss  Newsletter #224 . News Mempool consistency (3:15) BIP324 message identifiers (17:55) LN routing failure attribution (21:24) Anchor outputs workaround (33:08) Releases and release candidates LND 0.15.4-beta (42:27) Bitcoin Core 24.0 RC2 (51:36) Notable code and documentation changes Bitcoin Core #2392...

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Gregory Sanders, and Sergej Kotliar to discuss  Newsletter #223 .

Mark “Murch” Erhardt and Mike Schmidt are joined by John Light and Gregory Sanders to discuss  Newsletter #222 . News Block parsing bug affecting BTCD and LND (0:10) Transaction replacement option (5:34) Validity rollups research (18:02) MuSig2 security vulnerability (52:00) Minimum relayable transaction size (55:55) BIP324 update (1:01:52) Changes to services and client software btcd v0.23.2 rele...

Mark “Murch” Erhardt and Mike Schmidt are joined by Ruben Somsen and Martin Zumsande to discuss  Newsletter #221 . News LN with long timeouts proposal (18:45) Recommendations for unique address servers (1:32) Bitcoin Core PR Review Club Make AddrFetch connections to fixed seeds (23:32) Releases and release candidates LND v0.15.2-beta (35:04) Bitcoin Core 24.0 RC1 (38:14) Notable code and documenta...

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao and Rene Pickhardt to discuss  Newsletter #220 . News Proposed new transaction relay policies designed for LN-penalty (1:30) LN flow control (22:06) Releases and release candidates Bitcoin Core 24.0 RC1 (44:38) Notable code and documentation changes Eclair #2435 (51:28) BOLTs #962 (54:38) BIPs #1370 (55:29) BIPs #1367 (1:03:04) BIPs #...

Mark “Murch” Erhardt and Mike Schmidt are joined by Anthony Towns and Andreas Kouloumos to discuss  Newsletter #219 . News LN fee ratecards (0:51) Bitcoin implementation designed for testing soft forks on signet (11:35) Selected Q&A from Bitcoin Stack Exchange Is it possible to determine whether an HD wallet was used to create a given transaction? (34:10) Why is there a 5-day gap between the g...

Mark “Murch” Erhardt and Mike Schmidt are joined by Jeremy Rubin and Paul Sztorc to discuss  Newsletter #218 . News Creating drivechains with APO and a trusted setup (1:07) Changes to services and client software Mempool Project launches Lightning Network explorer (51:19) Federation software Fedimint adds Lightning (45:23) Bitpay wallet improves RBF support (52:02) Mutiny Lightning wallet announce...

Mark “Murch” Erhardt and Mike Schmidt are joined by Larry Ruane to discuss  Newsletter #217 . Bitcoin Core PR Review Club Reduce bandwidth during initial headers sync when a block is found (4:58) Releases and release candidates LDK 0.0.111 (25:09) Notable code and documentation changes Bitcoin Core #25614 (26:20) Bitcoin Core #25768 (30:41) Bitcoin Core #19602 (34:44) Eclair #2406 (39:27) Eclair #...

Mark “Murch” Erhardt and Mike Schmidt are joined by Daniela Brozzoni to discuss  Newsletter #216 . Notable code and documentation changes Bitcoin Core #25717 (2:34) Bitcoin Core #25355 (22:41) BDK #689 (31:45) BDK #682 (39:07)

Mark “Murch” Erhardt and Mike Schmidt are joined by Craig Raw to discuss  Newsletter #215 . News Wallet label export format (1:00) Selected Q&A from Bitcoin Stack Exchange Why isn't it possible to add an OP_RETURN commitment (or some arbitrary script) inside a taproot script path with a descriptor? (23:12) Why does Bitcoin Core rebroadcast transactions? (24:56) When did Bitcoin Core deprec...

Mark “Murch” Erhardt and Mike Schmidt are joined by Antoine Riard and Rodolfo Novak to discuss  Newsletter #214 . News Overview of channel jamming attacks and mitigations (28:08) Updated silent payments PR (2:00) Changes to services and client software Purse.io adds Lightning support (10:05) Proof of concept coinjoin implementation joinstr (12:14) Coldcard firmware 5.0.6 released (14:48) Nunchuk a...

Mark “Murch” Erhardt and Mike Schmidt are joined by Lloyd Fournier to discuss  Newsletter #213 . News Using Bitcoin-compatible BLS signatures for DLCs (1:59) Releases and release candidates Rust Bitcoin 0.29 (40:47) Core Lightning 0.12.0rc2 (43:02) Notable code and documentation changes Bitcoin Core #23480 (43:19) Bitcoin Core #22751 (44:50) Eclair #2273 (47:34) Eclair #2361 (50:27) LND #6810 (52:...

Mark “Murch” Erhardt and Mike Schmidt are joined by Peter Todd, Larry Ruane, and Gloria Zhao to discuss  Newsletter #212 . News Lowering the default minimum transaction relay feerate (2:30) Bitcoin Core PR Review Club Decouple validation cache initialization from ArgsManager (31:25) Notable code and documentation changes Bitcoin Core #25610 (45:50) Bitcoin Core #24584 (49:27) Core Lightning #5071...

Mark “Murch” Erhardt and Mike Schmidt are joined by Andrew Chow and Rodolfo Novak to discuss  Newsletter #211 . News Multiple derivation path descriptors (0:52) Notable code and documentation changes Core Lightning #5441 (23:26) Eclair #2253 (24:33) LDK #1519 (26:40) Rust Bitcoin #994 (29:37) Rust Bitcoin #1088 (32:50)

Mark “Murch” Erhardt and Mike Schmidt are joined by Ruben Somsen to discuss  Newsletter #210 . News Multiformat single-sig message signing (2:05) Proof of micro-burn (9:43) Selected Q&A from Bitcoin Stack Exchange Why do invalid signatures in `OP_CHECKSIGADD` not push to the stack? (30:41) What are packages in Bitcoin Core and what is their use case? (34:17) How much blockspace would it take t...