Bitcoin Optech Podcast

By Bitcoin OptechNews Tech News

Bitcoin Optech Podcast episodes

December 07, 2023Bitcoin Optech: Newsletter #280 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Pieter Wuille and Matthew Zipkin to discuss Newsletter #280.

News
Cluster mempool discussion (0:57)

Testing with warnet (32:42)
Bitcoin Core PR Review Club
Testing Bitcoin Core 26.0 Release Candidates (43:18)
Releases and release candidates
Bitcoin Core 26.0 (45:30)

LND 0.17.3-beta.rc1 (57:41)
Notable code and documentation changes
Bitcoin Core #28848 (58:49)

LDK #2540 (59:49)
1 hr 3 min
November 30, 2023Bitcoin Optech: Newsletter #279 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Lisa Neigut and Bastien Teinturier to discuss Newsletter #279.

News
Update to the liquidity ads specification (1:00)
Selected Q&A from Bitcoin Stack Exchange
Is the Schnorr digital signature scheme a multisignature interactive scheme, and also not an aggregated non-interactive scheme? (38:49)

Is it advisable to operate a release candidate full node on mainnet? (41:40)

What is the relation between nLockTime and nSequence? (44:40)

What would happen if we provide to OP_CHECKMULTISIG more than threshold number (m) of signatures? (52:18)

What is (mempool) policy? (54:30)

What does Pay to Contract (P2C) mean? (57:31)

Can a non-segwit transaction be serialized in the segwit format? (58:18)
Releases and release candidates
Core Lightning 23.11 (1:00:05)

Bitcoin Core 26.0rc3 (1:03:31)
Notable code and documentation changes
Rust Bitcoin #2213 (1:04:55)

BDK #1190 (1:09:04)
1 hr 11 min
November 22, 2023Bitcoin Optech: Newsletter #278 Recap
Dave Harding and Mike Schmidt are joined by Bastien Teinturier and Robin Linus to discuss Newsletter #278.

News
Offers-compatible LN addresses (1:20)
Changes to services and client software
BitMask Wallet 0.6.3 released (17:42)

Opcode documentation website announced (20:08)

Athena Bitcoin adds Lightning support (21:42)

Blixt v0.6.9 released (22:22)

Durabit whitepaper announced (23:07)

BitStream whitepaper announced (25:01)

BitVM proof of concepts (42:33)

Bitkit adds taproot send support (55:17)
Releases and release candidates
LND v0.17.2-beta (55:53)

Bitcoin Core 26.0rc2 (56:34)

Core Lightning 23.11rc3 (57:37)
Notable code and documentation changes
Core Lightning #6857 (58:45)

Eclair #2752 (59:42)
1 hr 3 min
November 16, 2023Bitcoin Optech: Newsletter #277 Recap
Dave Harding and Mike Schmidt are joined by Gregory Sanders, Antoine Poinsot, and Max Edwards to discuss Newsletter #277.

News
Eliminating malleability from ephemeral anchor spends (1:54)
Field Report: A Miniscript Journey (20:17)
Releases and release candidates
LND 0.17.1-beta (37:27)

Bitcoin Core 26.0rc2 (40:05)

Core Lightning 23.11rc1 (53:24)
Notable code and documentation changes
Bitcoin Core #28207 (55:33)

LDK #2715 (1:02:34)
1 hr 6 min
November 09, 2023Bitcoin Optech: Newsletter #276 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Johan Torås Halseth and Abubakar Ismail to discuss Newsletter #276.

News
Mailing list hosting (1:05)

HTLC aggregation with covenants (5:36)
Bitcoin Core PR Review Club
Fee Estimator updates from Validation Interface/CScheduler thread (16:47)
Releases and release candidates
Bitcoin Core 26.0rc2 (26:14)

Core Lightning 23.11rc1 (29:26)

LND 0.17.1-beta.rc1 (31:28)
Notable code and documentation changes
Core Lightning #6824 (32:38)

Core Lightning #6783 (34:59)

Core Lightning #6780 (36:29)

Core Lightning #6773 (39:06)

Core Lightning #6734 (39:58)

Eclair #2761 (41:02)
46 min
November 02, 2023Bitcoin Optech: Newsletter #275 Recap
Mark “Murch” Erhardt and Mike Schmidt discuss ⁠Newsletter #275⁠.
News
Continued discussion about scripting changes (0:40)
Releases and release candidates
LDK 0.0.118 (14:57)

Rust Bitcoin 0.31.1 (17:35)
Notable code and documentation changes
Bitcoin Core #28685 (21:24)

Bitcoin Core #28651 (22:34)

Bitcoin Core #28565 (24:57)

LND #7828 (31:01)

LDK #2660 (33:14)

BOLTs #1086 (35:02)
39 min
October 26, 2023Bitcoin Optech: Newsletter #274 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Bastien Teinturier, Fabian Jahr, Ethan Heilman, and Armin Sabouri to discuss Newsletter #274.

News
Replacement cycling vulnerability against HTLCs (1:40)

Bitcoin UTXO set summary hash replacement (24:21)

Research into generic covenants with minimal Script language changes (40:02)

Proposed BIP for OP_CAT (45:38)
Selected Q&A from Bitcoin Stack Exchange
How does the Branch and Bound coin selection algorithm work? (52:17)

Why is each transaction broadcast twice in the Bitcoin network? (54:29)

Why are OP_MUL and OP_DIV disabled in Bitcoin? (56:57)

Why are hashSequence and hashPrevouts computed separately? (58:56)

Why does Miniscript add an extra size check for hash preimage comparisons? (59:52)

How can the next block fee be less than the mempool purging fee rate? (1:00:51)
Releases and release candidates
Bitcoin Core 25.1 (1:12:00)

Bitcoin Core 24.2 (1:12:00)

Bitcoin Core 26.0rc1 (1:14:23)
1 hr 28 min
October 19, 2023Bitcoin Optech: Newsletter #273 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Robin Linus and Antoine Poinsot to discuss ⁠Newsletter #273⁠.
News
Security disclosure of issue affecting LN (1:09)

Payments contingent on arbitrary computation (8:15)

Proposed BIP for MuSig2 fields in PSBTs (26:44)
Changes to services and client software
BIP-329 Python library released (29:10)

LN testing tool Doppler announced (30:19)

Coldcard Mk4 v5.2.0 released (31:54)

Tapleaf circuits: a BitVM demo (32:27)

Samourai Wallet 0.99.98i released (34:24)

Krux: signing device firmware (35:12)
Releases and release candidates
Bitcoin Core 24.2rc2 (36:06)
Notable code and documentation changes
Bitcoin Core #27255 (38:07)

Eclair #2703 (45:54)

LND #7267 (47:06)

BDK #1041 (47:39)
51 min
October 12, 2023Bitcoin Optech: Newsletter #272 Recap
Mike Schmidt is joined by Steven Roose and Gloria Zhao to discuss Newsletter #272.

News
Specification for `OP_TXHASH` proposed (1:42)
Bitcoin Core PR Review Club
util: Type-safe transaction identifiers (18:36)
Releases and release candidates
LDK 0.0.117 (27:33)

BDK 0.29.0 (28:35)
Notable code and documentation changes
Bitcoin Core #27596 (29:32)

Bitcoin Core #28331 (30:38)

Bitcoin Core #27609 (33:08)

Bitcoin Core GUI #764 (34:55)

Core Lightning #6676 (36:29)
39 min
October 05, 2023Bitcoin Optech: Newsletter #271 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Gijs van Dam and Dave Harding to discuss Newsletter #271.

News
Secure remote control of LN nodes (1:48)

Payment splitting and switching (12:23)

Pooled liquidity for LN (34:31)
Releases and release candidates
LND v0.17.0-beta (55:26)
Notable code and documentation changes
Eclair #2756 (58:26)

LDK #2486 (1:01:33)

LDK #2609 (1:02:34)
1 hr 6 min