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PODCAST

Bitcoin Optech Podcast

Join Bitcoin Optech as we discuss Bitcoin and Lightning technology each week and review our newsletters. https://bitcoinops.org/

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All Episodes

01:13:44

Bitcoin Optech: Newsletter #251 Recap

Bitcoin Optech Podcast ·

2023/05/18

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Carla Kirk-Cohen, Severin Bühler, and Dan Gould to discuss Newsletter #251. News Testing HTLC endorsement (1:33) Request for feedback on proposed specifications for LSPs (14:52) Challenges with zero-conf channels when dual funding (20:59) Advanced payjoin applications (24:51) Summaries of Bitcoin Core developers in-person meeting (37:35) Waiting for confirmation #1: why do we have a mempool? (51:07) Releases and

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00:56:00

Bitcoin Optech: Newsletter #250 Recap

Bitcoin Optech Podcast ·

2023/05/11

Mark “Murch” Erhardt and Mike Schmidt are joined by Larry Ruane and Thomas Hartman to discuss Newsletter #250. News Paper about PoWswap protocol (1:36) Releases and release candidates Core Lightning 23.05rc2 (19:17) Bitcoin Core 24.1rc2 (23:05) Bitcoin Core 25.0rc1 (25:35) Bitcoin Core PR Review Club Add getprioritisationmap, delete a mapDeltas entry when delta==0 (26:26) Notable code and documentation changes Bitcoin Core #26094 (45:42) Bitcoin Core #27195 (46:42)

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01:17:51

Bitcoin Optech: Newsletter #249 Recap

Bitcoin Optech Podcast ·

2023/05/04

Mark “Murch” Erhardt and Mike Schmidt are joined by Salvatore Ingala, James O’Beirne, Adam Gibson, and Steve Lee to discuss Newsletter #249. News Job opportunity for project champions (1:17) MATT-based vaults (12:29) Analysis of signature adaptor security (33:40) Releases and release candidates LND v0.16.2-beta (56:25) Core Lightning 23.05rc2 (57:20) Notable code and documentation changes Bitcoin Core #25158 (58:17) Bitcoin Core #26933 (1:00:23) Bitcoin Core #25325

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00:34:46

Bitcoin Optech: Newsletter #248 Recap

Bitcoin Optech Podcast ·

2023/04/27

Mark “Murch” Erhardt and Mike Schmidt are joined by Will Clark to discuss Newsletter #248. News Proposed removal of BIP35 `mempool` P2P message (0:41) Selected Q&A from Bitcoin Stack Exchange How many sigops are in the invalid block 783426? (15:27) How would an adversary increase the required fee to replace a transaction by up to 500 times? (19:10) Best Practices with Multiple CPFPs & CPFP + RBF? (22:51) Releases and release candidates LDK 0.0.115 (25:01) LND

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01:09:31

Bitcoin Optech: Newsletter #247 Recap

Bitcoin Optech Podcast ·

2023/04/20

Dave Harding and Mike Schmidt are joined by Maxim Orlovsky to discuss Newsletter #247. News RGB update (1:12) Changes to services and client software Descriptor wallet library adds block explorer (36:02) Stratum v2 reference implementation update announced (38:02) Liana 0.4 released (42:35) Coldcard firmware supports additional sighash flags (46:12) Zeus adds fee bumping features (45:12) Utreexo-based Electrum Server announced (48:12) Releases and release candidates BDK

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01:16:21

Bitcoin Optech: Newsletter #246 Recap

Bitcoin Optech Podcast ·

2023/04/13

Mark “Murch” Erhardt and Mike Schmidt are joined by Lisa Neigut and Niklas Gögge to discuss Newsletter #246. News Splicing specification discussions (1:24) Proposed BIP for transaction terminology (40:49) Bitcoin Core PR Review Club Don’t download witnesses for assumed-valid blocks when running in prune mode (43:42) Releases and release candidates Libsecp256k1 0.3.1 (53:10) BDK 1.0.0-alpha.0 (58:08) Notable code and documentation changes Core Lightning #6012 (58:33) Core

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00:34:08

Bitcoin Optech: Newsletter #245 Recap

Bitcoin Optech Podcast ·

2023/04/06

Mark “Murch” Erhardt and Mike Schmidt are joined by Sergi Delgado Segura to discuss Newsletter #245. News Watchtower accountability proofs (0:36) Releases and release candidates LND v0.16.0-beta (21:37) BDK 1.0.0-alpha.0 (22:06) Notable code and documentation changes Core Lightning #5967 (22:59) Eclair #2566 (23:43) LDK #2062 (24:57) LDK #2125 (27:18) BTCPay Server #4826 (27:56) BTCPay Server #4782 (29:51) BTCPay Server #4799 (30:15) BOLTs #765 (31:37)

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01:21:25

Bitcoin Optech: Newsletter #244 Recap

Bitcoin Optech Podcast ·

2023/03/30

Mark “Murch” Erhardt and Mike Schmidt are joined by Dave Harding to discuss Newsletter #244. News Preventing stranded capital with multiparty channels and channel factories (1:00) Selected Q&A from Bitcoin Stack Exchange Why isn’t the taproot deployment buried in Bitcoin Core? (28:06) What restrictions does the version field in the block header have? (32:23) What is the relation between transaction data and ids? (39:04) Can I request tx messages from other peers? (43:33)

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00:48:56

Bitcoin Optech: Newsletter #243 Recap

Bitcoin Optech Podcast ·

2023/03/29

Mark “Murch” Erhardt and Mike Schmidt are joined by Alekos Filini to discuss Newsletter #243. News No significant news this week was found on the Bitcoin-Dev or Lightning-Dev mailing lists. Changes to services and client software Xapo Bank supports Lightning (1:41) TypeScript library for miniscript descriptors released (3:02) Breez Lightning SDK announced (6:48) PSBT-based exchange OpenOrdex launches (10:48) BTCPay Server coinjoin plugin released (14:01) mempool.space explorer enhances

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00:45:28

Bitcoin Optech: Newsletter #242 Recap

Bitcoin Optech Podcast ·

2023/03/22

Mark “Murch” Erhardt and Mike Schmidt are joined by Calvin Kim, James O’Beirne, and Greg Sanders to discuss Newsletter #242. News Service bit for Utreexo (1:28) Releases and release candidates Core Lightning v23.02.2 (22:04) Libsecp256k1 0.3.0 (25:47) LND v0.16.0-beta.rc3 (29:01) Notable code and documentation changes Bitcoin Core #25740 (30:01)

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00:44:00

Bitcoin Optech: Newsletter #241 Recap

Bitcoin Optech Podcast ·

2023/03/13

Mark “Murch” Erhardt and Mike Schmidt are joined by James O’Beirne and Greg Sanders to discuss Newsletter #241. News Alternative design for OP_VAULT (0:41) New Optech Podcast (23:29) Bitcoin Core PR Review Club Bitcoin-inquisition: Activation logic for testing consensus changes (24:33) Releases and release candidates Core Lightning 23.02 (38:01) LDK v0.0.114 (40:00) BTCPay 1.8.2 (40:52) LND v0.16.0-beta.rc2 (41:40) Notable code and documentation changes LND #7462 (42:48)

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00:21:58

Bitcoin Optech: Newsletter #240 Recap

Bitcoin Optech Podcast ·

2023/03/06

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)

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01:01:45

Bitcoin Optech: Newsletter #239 Recap

Bitcoin Optech Podcast ·

2023/02/27

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 from Bitcoin Stack Exchange Why is witness data downloaded during IBD in prune mode? (36:40)

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01:03:25

Bitcoin Optech: Newsletter #238 Recap

Bitcoin Optech Podcast ·

2023/02/16

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) Bitcoinex library adds schnorr support (39:20) Libwally 0.8.8 released (39:59)

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00:52:54

Bitcoin Optech: Newsletter #237 Recap

Bitcoin Optech Podcast ·

2023/02/09

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 Core #25880 (39:45) Core Lightning #5679 (45:34) Core Lightning #5821 (46:25)

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00:57:45

Bitcoin Optech: Newsletter #236 Recap

Bitcoin Optech Podcast ·

2023/02/02

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)

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01:02:59

Bitcoin Optech: Newsletter #235 Recap

Bitcoin Optech Podcast ·

2023/01/26

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? (31:36) Arbitrary data storage in witness? (34:07) Why is the locktime set at transaction

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01:11:18

Bitcoin Optech: Newsletter #234 Recap

Bitcoin Optech Podcast ·

2023/01/19

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) Releases and release candidates HWI 2.2.0 (1:00:04) Notable code and documentation

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01:02:38

Bitcoin Optech: Newsletter #233 Recap

Bitcoin Optech Podcast ·

2023/01/12

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)

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01:08:44

Bitcoin Optech: Newsletter #232 Recap

Bitcoin Optech Podcast ·

2023/01/05

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

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