Bitcoin Optech Podcast

By Bitcoin OptechNews Tech News

Bitcoin Optech Podcast episodes

September 28, 2023Bitcoin Optech: Newsletter #270 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Anthony Towns to discuss Newsletter #270.

News
Using covenants to improve LN scalability (2:07)
Selected Q&A from Bitcoin Stack Exchange
How did peer discovery work in Bitcoin v0.1? (20:42)

Would a series of reorgs cause Bitcoin to break because of the 2-hour block time difference restriction? (22:48)

Is there a way to download blocks from scratch without downloading block headers first? (26:56)

Where is the bitcoin source code is the 21 million hard cap stated? (28:56)

Are blocks containing non-standard transactions relayed through the network or not as in the case of non-standard transactions? (31:50)

When does Bitcoin Core allow you to Abandon transaction? (35:47)
Releases and release candidates
LND v0.17.0-beta.rc5 (39:07)
Notable code and documentation changes
Bitcoin Core #28492 (39:54)

Bitcoin Core GUI #119 (41:13)

Bitcoin Core GUI #738 (42:49)

Bitcoin Core #28246 (44:18)

Core Lightning #6311 (46:30)

Core Lightning #6617 (47:23)

Core Lightning #6686 (47:55)

Eclair #2613 (48:44)

LND #7994 (50:18)

LDK #2547 (51:10)

LDK #2534 (53:01)
57 min
September 21, 2023Bitcoin Optech: Newsletter #269 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Sergi Delgado Segura to discuss Newsletter #269.
39 min
September 14, 2023Bitcoin Optech: Newsletter #268 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Olaoluwa Osuntokun, Greg Sanders, and Pieter Wuille to discuss Newsletter #268.

News
Specifications for taproot assets (1:10)

LN messaging changes for PTLCs (53:22)
Bitcoin Core PR Review Club
BIP324 (28:31)
Releases and release candidates
LND v0.17.0-beta.rc2 (1:18:22)
Notable code and documentation changes
Bitcoin Core #26567 (1:20:52)
1 hr 23 min
September 07, 2023Bitcoin Optech: Newsletter #267 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Tom Briar and Nick Farrow to discuss Newsletter #267.

News
Bitcoin transaction compression (1:13)

Privacy enhanced co-signing (14:43)
Releases and release candidates
Libsecp256k1 0.4.0 (35:43)

LND v0.17.0-beta.rc2 (37:26)
Notable code and documentation changes
Bitcoin Core #28354 (38:43)

LDK #2468 (40:33)
43 min
September 03, 2023 Bitcoin Optech: Waiting for Confirmation Special
This podcast is a compilation of previous podcast discussions about the Waiting for confirmation series on mempool and relay policy. Series coauthors Mark “Murch” Erhardt and Gloria Zhao describe the concepts in the series, discuss with special guests, and take questions from the audience.

1. Why do we have a mempool? (0:50)
2. Incentives (13:10)
3. Bidding for block space (31:19)
4. Feerate estimation (47:27)
5. Policy for Protection of Node Resources (59:04)
6. Policy Consistency (1:09:47)
7. Network Resources (1:21:40)
8. Policy as an Interface (1:48:37)
9. Policy proposals (2:07:00)
10. Get Involved (2:29:15)

2 hr 41 min
August 31, 2023Bitcoin Optech: Newsletter #266 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Matt Corallo, Brandon Black, Gregory Sanders, and James O’Beirne to discuss Newsletter #266.

News
Disclosure of past LN vulnerability related to fake funding (21:11)

Covenant mashup using `TXHASH` and `CSFS` (1:30)
Selected Q&A from Bitcoin Stack Exchange
Is there an economic incentive to switch from P2WPKH to P2TR? (34:44)

What is the BIP324 encrypted packet structure? (37:31)

What is the false positive rate for compact block filters? (39:23)

What opcodes are part of the MATT proposal? (40:27)

Is there a well defined last Bitcoin block? (41:40)

Why are miners setting the locktime in coinbase transactions? (46:10)

Why doesn't Bitcoin Core use auxiliary randomness when performing Schnorr signatures? (47:40)
Releases and release candidates
Core Lightning 23.08 (49:21)

LND v0.17.0-beta.rc1 (50:24)
Notable code and documentation changes
Bitcoin Core #27460 (51:16)

LDK #2248 (53:43)

LDK #2337 (55:00)

LDK #2411 (1:00:16)

LDK #2507 (1:04:46)

LDK #2478 (1:07:22)

LND #7904 (1:09:07)
1 hr 14 min
August 24, 2023Bitcoin Optech: Newsletter #265 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Peter Todd and Henrik Skogstrøm to discuss Newsletter #265.

News
Fraud proofs for outdated backup state (1:20)
Changes to services and client software
Scaling Lightning call for feedback (18:07)

Torq v1.0 released (30:31)

Blixt Wallet v0.6.8 released (36:03)

Sparrow 1.7.8 released (37:19)

Open source ASIC miner bitaxeUltra prototype (38:21)

FROST software Frostsnap announced (39:10)

Libfloresta library announced (42:25)

Wasabi Wallet 2.0.4 released (51:32)
Releases and release candidates
Core Lightning 23.08rc3 (43:57)

HWI 2.3.1 (44:35)
Notable code and documentation changes
Bitcoin Core #27981 (45:03)

BOLTs #919 (46:55)

Rust Bitcoin #1990 (49:21)

Rust Bitcoin #1962 (50:09)

BIPs #1485 (50:39)
59 min
August 17, 2023Bitcoin Optech: Newsletter #264 Recap
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)
57 min
August 10, 2023Bitcoin Optech: Newsletter #263 Recap
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 Club
Silent Payments: Implement BIP352 (53:57)
Releases and release candidates
BDK 0.28.1 (1:12:41)
Notable code and documentation changes
Bitcoin Core #27746 (1:13:06)

Core Lightning #6376 (1:15:51)

Core Lightning #6466 (1:27:13)

Core Lightning #6253 (1:29:13)

Rust Bitcoin #1945 (1:30:01)

BOLTs #759 (1:32:21)
1 hr 36 min
August 04, 2023Bitcoin Optech: Newsletter #262 Recap
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 Lightning #6398 (39:52)

Core Lightning #5492 (45:52)

Eclair #2680 (51:42)

LND #7820 (53:57)

LND #7516 (54:57)

BTCPay Server #5155 (57:26)
59 min