Bitcoin Optech Podcast

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 CPFP support (18:46) Sparrow v1.7.3 released (21:38) Stack Wallet adds coin control, BIP47 (24:22) Wasabi Wallet v2.0.3 released (26:26) Releases and release candidates LND v0.16.0-beta.rc3 (28:32) Notable code and documentation changes LND #7448 (29:16) BDK #793 (36:03)

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)

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)

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 from Bitcoin Stack Exchange Why is witness data downloaded during IBD in prune mode? (36:40) Can Bitcoin’s P2P network relay compressed data? (40:39) How does one become a DNS seed for Bitcoin Core? (41:18) Where can I learn about open research topics in Bitcoin? (44:00) What is the maximum size transaction that will be relayed by bitcoin nodes using the default configuration? (47:55) Understanding how ordinals work with in Bitcoin. What is exactly stored on the blockchain? (50:07) Why doesn’t the protocol allow unconfirmed transactions to expire at a given height? (51:00) Releases and release candidates BDK 0.27.1 (52:44) Core Lightning 23.02rc3 (53:16) Notable code and documentation changes Bitcoin Core #24149 (53:57) Bitcoin Core #25344 (56:10) Eclair #2596 (58:09) Eclair #2595 (59:31) Eclair #2479 (59:45) LND #5988 (1:00:09) Rust Bitcoin #1636 (1:00:42)

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 (37:36) Sparrow wallet 1.7.2 released (38:47) Bitcoinex library adds schnorr support (39:20) Libwally 0.8.8 released (40:00) Optech Recommends BitcoinSearch.xyz (40:41) Releases and release candidates Core Lightning 23.02rc2 (42:24) BTCPay Server 1.7.11 (47:52) BDK 0.27.0 (49:32) Notable code and documentation changes Core Lightning #5361 (49:51) Core Lightning #5670 and #5956 (54:45) Core Lightning #5697 (56:23) Core Lightning #5960 (57:38) LND #7171 (58:54) LDK #2002 (1:00:01) BTCPay Server #4600 (1:01:00)