Bitcoin Optech Podcast

By Bitcoin OptechNews Tech News

Bitcoin Optech Podcast episodes

November 22, 2024Bitcoin Optech: Newsletter #329 Recap
Mark “Murch” Erhardt discusses Newsletter #329.

News
MAD-based offchain payment resolution (OPR) protocol (0:21)

Papers about IP-layer censorship of LN payments (3:10)

Releases and release candidates
BTCPay Server 2.0.3 (6:21)

Notable code and documentation changes
Bitcoin Core #30592 (8:29)

Bitcoin Core #30930 (9:46)

LDK #3283 (11:35)

LND #7762 (12:31)
14 min
November 22, 2024Bitcoin Optech: Newsletter #328 Recap
Mark “Murch” Erhardt and Gregory Sanders discuss Newsletter #328.

News
Disclosure of a vulnerability affecting Bitcoin Core versions before 25.1 (0:53)

Bitcoin Core PR Review Club
Ephemeral Dust (6:54)

Releases and release candidates
Bitcoin Core 27.2 (14:55)

Libsecp256k1 0.6.0 (15:40)

Notable code and documentation changes
LDK #3360 (17:40)

LDK #3207 (18:45)
21 min
November 05, 2024Bitcoin Optech: Newsletter #327 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Andrew Toth to discuss ⁠Newsletter #327⁠.
News
Timeout tree channel factories (0:50)

Draft BIP for DLEQ proofs (10:53)
Releases and release candidates
BTCPay Server 2.0.0 (20:02)
Notable code and documentation changes
Bitcoin Core #31130 (22:56)

LDK #3007 (25:14)

BIPs #1676 (27:15)
29 min
October 31, 2024Bitcoin Optech: SuperScalar Deep Dive Podcast
Dave Harding and Mike Schmidt are joined by ZmnSCPxj to discuss his SuperScalar proposal.
Why a deep dive? (0:40)

Proposal overview (1:58)

Importance of reallocating liquidity (4:13)

What about overloading channels with liquidity from the start? (9:42)

Discussion of multi-LSP vs single LSP approaches (13:05)

Ensuring unilateral exit is possible (15:22)

Malicious users forcing unilateral closes (20:21)

Decker–Wattenhofer channels vs John Law's tunable penalties (27:11)

Decker–Wattenhofer relative lock times impact on users (38:44)

Discussion of trustless non-P2P protocol structure (40:01)

Contrasting SuperScalar with Ark (44:08)

Implementation discussion (48:44)
54 min
October 29, 2024Bitcoin Optech: Newsletter #326 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Elle Mouton and Andrew Toth to discuss Newsletter #326.

News
Updates to the version 1.75 channel announcements proposal (1:36)

Draft BIP for sending silent payments with PSBTs (16:28)
Selected Q&A from Bitcoin Stack Exchange
Duplicate blocks in blk*.dat files? (30:07)

How was the structure of pay-to-anchor decided? (32:45)

What are the benefits of decoy packets in BIP324? (36:38)

Why is the opcode limit 201? (39:20)

Will my node relay a transaction if it is below my minimum tx relay fee? (40:31)

Why doesn't the Bitcoin Core wallet support BIP69? (42:09)

How can I enable testnet4 when using Bitcoin Core 28.0? (44:50)

What are the risks of broadcasting a transaction that reveals a `scriptPubKey` using a low-entropy key? (47:33)
Releases and release candidates
Core Lightning 24.08.2 (52:12)
Notable code and documentation changes
Eclair #2925 (52:56)

LND #9172 (53:37)

Rust Bitcoin #2960 (55:47)
58 min
October 22, 2024Bitcoin Optech: Newsletter #325 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Olaoluwa Osuntokun and Steven Roose to discuss ⁠Newsletter #325⁠.
News
LN Summit 2024 notes (0:51)
Changes to services and client software
Coinbase adds taproot send support (49:03)

Dana wallet released (51:53)

Kyoto BIP157/158 light client released (53:20)

DLC Markets launches on mainnet (1:01:39)

Ashigaru wallet announced (1:02:30)

DATUM protocol announced (1:03:10)

Bark Ark implementation announced (1:03:55)

Phoenix v2.4.0 and phoenixd v0.4.0 released (1:11:31)
Releases and release candidates
BDK 1.0.0-beta.5 (1:12:33)
Notable code and documentation changes
Bitcoin Core #30955 (1:13:11)

Eclair #2927 (1:14:37)

Eclair #2922 (1:15:38)

LDK #3235 (1:16:30)

LND #8183 (1:17:21)

Rust Bitcoin #3450 (1:18:09)
1 hr 23 min
October 21, 2024Bitcoin Optech: Newsletter #324 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Antoine Poinsot to discuss ⁠Newsletter #324⁠.
News
Disclosure of vulnerabilities affecting Bitcoin Core versions before 25.0 (1:09)

CVE-2024-38365 btcd consensus failure (11:22)

Guide for wallets employing Bitcoin Core 28.0 (23:27)
Bitcoin Core PR Review Club
Add getorphantxs (27:43)
Releases and release candidates
Bitcoin Inquisition 28.0 (26:35)

BDK 1.0.0-beta.5 (31:39)
Notable code and documentation changes
Core Lightning #7494 (32:22)

Core Lightning #7539 (34:46)

LDK #3179 (35:46)

LND #8960 (36:56)

Libsecp256k1 #1479 (37:38)

Rust Bitcoin #2945 (39:29)

BIPs #1674 (39:49)
46 min
October 08, 2024Bitcoin Optech: Newsletter #323 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Bastien Teinturier to discuss ⁠Newsletter #323⁠.
News
Impending btcd security disclosure (0:54)
Releases and release candidates
Bitcoin Core 28.0 (3:11)

BDK 1.0.0-beta.5 (15:13)
Notable code and documentation changes
Bitcoin Core #30043 (20:47)

Bitcoin Core #30510 (22:15)

Core Lightning #7644 (25:06)

Eclair #2848 (26:28)

Eclair #2860 (30:57)

Eclair #2861 (29:17)

Eclair #2875 (31:19)

LDK #3303 (40:24)

BDK #1616 (41:29)

BIPs #1600 (46:02)

BOLTs #798 (48:25)
56 min
October 01, 2024Bitcoin Optech: Newsletter #322 Recap
Jon Atack and Mike Schmidt are joined by Gloria Zhao and Jonas Nick to discuss ⁠Newsletter #322⁠.
News
Disclosure of vulnerability affecting Bitcoin Core versions before 24.0.1 (2:01)

Hybrid jamming mitigation testing and changes (17:51)

Shielded client-side validation (CSV) (25:28)

Draft of updated BIP process (48:47)
Selected Q&A from Bitcoin Stack Exchange
What specific verifications are done on a fresh Bitcoin TX and in what order? (54:31)

Why is my bitcoin directory larger than my pruning data limit setting? (55:42)

What do I need to have set up to have `getblocktemplate` work? (58:19)

Can a silent payment address body be brute forced? (1:00:02)

Why does a tx fail `testmempoolaccept` BIP125 replacement but is accepted by `submitpackage`? (1:01:38)

How does the ban score algorithm calculate a ban score for a peer? (1:03:53)
Releases and release candidates
BDK 1.0.0-beta.4 (1:06:41)

Bitcoin Core 28.0rc2 (1:06:57)
Notable code and documentation changes
Eclair #2909 (1:10:15)

LND #9095 (1:11:12)

LND #8044 (1:11:55)
1 hr 16 min
September 24, 2024Bitcoin Optech: Newsletter #321 Recap
Rijndael and Mike Schmidt are joined by Andy Schroder and Virtu to discuss ⁠Newsletter #321⁠.
News
Proving UTXO set inclusion in zero knowledge (1:47)

LN offline payments (11:32)

DNS seeding for non-IP addresses (30:00)
Changes to services and client software
Strike adds BOLT12 support (42:15)

BitBox02 adds silent payment support (43:29)

The Mempool Open Source Project v3.0.0 released (45:22)

ZEUS v0.9.0 released (46:39)

Live Wallet adds consolidation support (47:04)

Bisq adds Lightning support (48:30)
Releases and release candidates
HWI 3.1.0 (49:32)

Core Lightning 24.08.1 (49:56)

BDK 1.0.0-beta.4 (50:27)

Bitcoin Core 28.0rc2 (51:04)
Notable code and documentation changes
Bitcoin Core #28358 (52:23)

Bitcoin Core #30286 (53:53)

Bitcoin Core #30807 (55:24)

LND #8981 (56:36)

LDK #3140 (57:34)

LDK #3163 (58:50)

LDK #3010 (59:40)

BDK #1581 (1:00:18)

BDK #1561 (1:01:21)
1 hr 3 min