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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

00:56:47

Bitcoin Optech: Newsletter #264 Recap

Bitcoin Optech Podcast ·

2023/08/17

Mark “Murch” Erhardt and Mike Schmidt are joined by Brandon Black and Dan Gould to discuss Newsletter #264. News Adding expiration metadata to silent payment addresses (0:51) Serverless payjoin (14:28) Field Report: Implementing MuSig2 (33:10) Releases and release candidates Core Lightning 23.08rc2 (44:40) Notable code and documentation changes Bitcoin Core #27213 (45:46) Bitcoin Core #28008 (50:29) LDK #2308 (55:15)

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01:35:19

Bitcoin Optech: Newsletter #263 Recap

Bitcoin Optech Podcast ·

2023/08/10

Mark “Murch” Erhardt and Mike Schmidt are joined by Dave Harding, Clara Shikhelman, Peter Todd, Josie Baker, and Eduardo Quintana to discuss Newsletter #263. Action items Severe Libbitcoin Bitcoin Explorer vulnerability (1:25) News Denial-of-Service (DoS) protection design philosophy (12:00) HTLC endorsement testing and data collection (18:40) Proposed changes to Bitcoin Core default relay policy (28:04) Libbitcoin Bitcoin Explorer security disclosure (1:25) Bitcoin Core PR Review

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00:58:42

Bitcoin Optech: Newsletter #262 Recap

Bitcoin Optech Podcast ·

2023/08/04

Mark “Murch” Erhardt and Mike Schmidt are joined by Tom Trevethan, Lisa Neigut, and Dusty Daemon to discuss Newsletter #262. News Transcripts of periodic LN specification meetings (1:13) Safety of blind MuSig2 signing (5:07) Releases and release candidates BTCPay Server 1.11.1 (24:30) Notable code and documentation changes Bitcoin Core #26467 (25:31) Core Lightning #6378 (27:19) Core Lightning #6399 (33:03) Core Lightning #6389 (35:48) Core Lightning #6403 (37:37) Core

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01:19:09

Bitcoin Optech: Newsletter #261 Recap

Bitcoin Optech Podcast ·

2023/07/27

Mark “Murch” Erhardt and Mike Schmidt are joined by Greg Sanders and Bastien Teinturier to discuss Newsletter #261. News Simplified LN closing protocol (1:03) LN Summit notes (10:48) Selected Q&A from Bitcoin Stack Exchange How can I manually (on paper) calculate a Bitcoin public key from a private key? (57:18) Why are there 17 native segwit versions? (59:43) Does `0 OP_CSV` force the spending transaction to signal BIP125 replaceability? (1:03:04) How do route hints affect

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01:08:56

Bitcoin Optech: Newsletter #260 Recap

Bitcoin Optech Podcast ·

2023/07/20

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Rearden Code, Ken Sedgwick, and Jack Ronaldi to discuss Newsletter #260. Waiting for confirmation #10: Get Involved (2:01) Changes to services and client software Wallet 10101 beta testing pooling funds between LN and DLCs (14:56) LDK Node announced (17:14) Payjoin SDK announced (20:09) Validating Lightning Signer (VLS) beta announced (25:27) BitGo adds MuSig2 support (37:42) Peach adds RBF support (44:34) Phoenix

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00:58:10

Bitcoin Optech: Newsletter #259 Recap

Bitcoin Optech Podcast ·

2023/07/13

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Bastien Teinturier, and Martin Zumsande to discuss Newsletter #259. News LN specification clean up proposed (0:58) Waiting for confirmation #9: Policy Proposals (18:59) Bitcoin Core PR Review Club Stop relaying non-mempool txs (41:42) Releases and release candidates LND v0.16.4-beta (50:43) Notable code and documentation changes Bitcoin Core #27869 (51:48)

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00:37:53

Bitcoin Optech: Newsletter #258 Recap

Bitcoin Optech Podcast ·

2023/07/06

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao to discuss Newsletter #258. Waiting for confirmation #8: Policy as an Interface (0:30) Releases and release candidates Core Lightning 23.05.2 (10:27) Notable code and documentation changes Bitcoin Core #24914 (22:03) Bitcoin Core #27896 (24:47) Core Lightning #6334 (27:51) BIPs #1452 (31:08) BIPs #1354 (33:55)

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01:47:48

Bitcoin Optech: Newsletter #257 Recap

Bitcoin Optech Podcast ·

2023/06/29

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Robin Linus, Dave Harding, and Pavlenex to discuss Newsletter #257. News Preventing coinjoin pinning with v3 transaction relay (16:08) Speculatively using hoped-for consensus changes (1:33) Waiting for confirmation #7: Network Resources (24:46) Selected Q&A from Bitcoin Stack Exchange Why do Bitcoin nodes accept blocks that have so many excluded transactions? (57:38) Why does everyone say that soft forks restrict the

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00:49:48

Bitcoin Optech: Newsletter #256 Recap

Bitcoin Optech Podcast ·

2023/06/22

Mark “Murch” Erhardt and Mike Schmidt are joined by Thomas Voegtlin to discuss Newsletter #256. News Proposal to extend BOLT11 invoices to request two payments (1:00) Waiting for confirmation #6: Policy Consistency (19:25) Changes to services and client software Greenlight libraries open sourced (32:01) Tapscript debugger Tapsim (33:25) Bitcoin Keeper 1.0.4 announced (35:09) Lightning wallet EttaWallet announced (35:47) zkSNARK-based block header sync PoC announced (37:09)

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01:18:39

Bitcoin Optech: Newsletter #255 Recap

Bitcoin Optech Podcast ·

2023/06/15

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Ruben Somsen, Josie Baker, Matthew Zipkin, and Joost Jager to discuss Newsletter #255. News Discussion about the taproot annex (1:32) Draft BIP for silent payments (22:17) Waiting for confirmation #5: Policy for Protection of Node Resources (41:48) Bitcoin Core PR Review Club Allow inbound whitebind connections to more aggressively evict peers when slots are full (53:38) Releases and release candidates Core Lightning

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00:55:29

Bitcoin Optech: Newsletter #254 Recap

Bitcoin Optech Podcast ·

2023/06/08

Dave Harding and Mike Schmidt are joined by Gloria Zhao, Johan Torås Halseth, and Salvatore Ingala to discuss Newsletter #254. News Using MATT to replicate CTV and manage joinpools (1:23) Waiting for confirmation #4: Feerate estimation (24:23) Releases and release candidates LND 0.16.3-beta (40:37) Notable code and documentation changes Bitcoin Core #26485 (42:34) Eclair #2642 (44:40) LND #7645 (46:11) LND #7726 (48:25) LDK #2293 (51:04)

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01:46:25

Bitcoin Optech: Newsletter #253 Recap

Bitcoin Optech Podcast ·

2023/06/01

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Burak Keceli, Dave Harding, and Joost Jager to discuss Newsletter #253. News Proposal for a managed joinpool protocol (1:46) Transaction relay over Nostr (40:38) Waiting for confirmation #3: Bidding for block space (1:00:02) Selected Q&A from Bitcoin Stack Exchange Testing pruning logic with bitcoind (1:12:38) What's the governing motivation for the descendent size limit? (1:13:19) How does it contribute to the

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01:05:41

Bitcoin Optech: Newsletter #252 Recap

Bitcoin Optech Podcast ·

2023/05/25

Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, Robin Linus, and Lukas George to discuss Newsletter #252. News State compression with zero-knowledge validity proofs (1:05) Waiting for confirmation #2: Incentives (19:00) Changes to services and client software Passport firmware 2.1.1 released (37:19) MuSig wallet Munstr released (37:40) CLN plugin manager Coffee released (38:49) Electrum 4.4.3 released (40:01) Trezor Suite adds coinjoin support (40:32)

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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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