Bitcoin Optech Podcast

Mark "Murch" Erhardt and Mike Schmidt discuss Newsletter #240 . News Faster seed backup checksums (2:31) Releases and release candidates HWI 2.2.1 (10:17) Core Lightning 23.02rc3 (11:38) lnd v0.16.0-beta.rc1 (12:03) Notable code and documentation changes Bitcoin Core #25943 (12:59) Bitcoin Core #26595 (15:11) Bitcoin Core #27068 (16:51) LDK #1988 (18:37) LDK #1977 (20:15)

Join Mark “Murch” Erhardt and Mike Schmidt as they are joined by James O’Beirne, Christian Decker, and Russell O’Connor to discuss Newsletter #239 . A full transcript of the discussion is available here . News Draft BIP for OP_VAULT (1:18) LN quality of service flag (4:15) Feedback requested on LN good neighbor scoring (13:58) Proposed BIP for Codex32 seed encoding scheme (20:27) Selected Q&A...

Mark “Murch” Erhardt and Mike Schmidt are joined by AJ Towns, Yuval Kogman, Alex Myers and Vivek Kasarabada to discuss  Newsletter #238 . News Continued discussion about block chain data storage (1:02) Fee dilution in multiparty protocols (27:29) Tapscript signature malleability (33:47) Changes to services and client software Liana wallet adds multisig (37:35) Sparrow wallet 1.7.2 released (38:46)...

Mark “Murch” Erhardt and Mike Schmidt are joined by Martin Zumsande and Carla Kirk-Cohen to discuss  Newsletter #237 . News Discussion about storing data in the block chain (1:19) Summary of call about mitigating LN jamming (11:05) Bitcoin Core PR Review Club Track AddrMan totals by network and table, improve precision of adding fixed seeds (27:50) Notable code and documentation changes Bitcoin Co...

Mark “Murch” Erhardt and Mike Schmidt are joined by Dan Gould and Bastien Teinturier to discuss  Newsletter #236 . News Serverless payjoin proposal (1:30) LN async proof of payment (18:44) Notable code and documentation changes Bitcoin Core #26471 (28:50) Bitcoin Core #23395 (32:11) Eclair #2573 (33:20) Eclair #2574 (33:20) Eclair #2540 (38:23) LND #7231 (44:33) LDK #1878 (47:47) LDK #1860 (50:35)

Mark “Murch” Erhardt and Mike Schmidt are joined by Valentine Wallace to discuss  Newsletter #235 . News Ephemeral anchors compared to `SIGHASH_GROUP` (0:58) Request for proof that an async payment was accepted (12:04) Selected Q&A from Bitcoin Stack Exchange Bitcoin Core signing keys were removed from repo. What is the new process? (27:53) Why doesn't signet use a unique bech32 prefix? (3...

Mark “Murch” Erhardt and Mike Schmidt are joined by James O’Beirne to discuss  Newsletter #234 . News Proposal for new vault-specific opcodes (1:48) Changes to services and client software Kraken announces sending to taproot addresses (53:01) Whirlpool coinjoin rust client library announced (53:45) Ledger supports miniscript (54:25) Liana wallet released (55:11) Electrum 4.3.3 released (58:40) Rel...

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)