Bitcoin Optech Podcast

By Bitcoin OptechNews Tech News

Bitcoin Optech Podcast episodes

May 02, 2024Bitcoin Optech: Newsletter #300 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Tadge Dryja to discuss ⁠Newsletter #300⁠.
News
CTV-like exploding keys proposal (0:59)

Analyzing a contract protocol with Alloy (13:07)

Arrests of Bitcoin developers (22:37)

CoreDev.tech Berlin event (28:53)
Releases and release candidates
Bitcoin Inquisition 25.2 (31:35)

LND v0.18.0-beta.rc1 (35:59)
Notable code and documentation changes
Bitcoin Core #27679 (36:48)

Core Lightning #7240 (39:39)

Eclair #2851 (44:02)

LND #8147 (45:49)

LND #8627 (47:37)

Libsecp256k1 #1058 (1:00:01)

BIPs #1382 (1:02:01)

BIPs #1068 (1:03:35)
1 hr 6 min
April 25, 2024Bitcoin Optech: Newsletter #299 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Gregory Sanders to discuss ⁠Newsletter #299⁠.

News
Weak blocks proof-of-concept implementation (0:56)

BIP editors update (20:08)
Selected Q&A from Bitcoin Stack Exchange
Where exactly is the off-by-one difficulty bug? (26:44)

How is P2TR different than P2PKH using opcodes from a developer perspective? (32:10)

Are replacement transactions larger in size than their predecessors and than non-RBF transactions? (34:15)

Are Bitcoin signatures still vulnerable to nonce reuse? (36:59)

How do miners manually add transactions to a block template? (39:48)
Releases and release candidates
LND v0.17.5-beta (41:40)
Notable code and documentation changes
Bitcoin Core #29850 (46:35)
50 min
April 19, 2024Bitcoin Optech: Newsletter #298 Recap
Mark “Murch” Erhardt and Mike Schmidt discuss ⁠Newsletter #298⁠.
News
What would have happened if cluster mempool had been deployed a year ago? (0:42)
Changes to services and client software
Phoenix for server announced (19:26)

Mercury Layer adds Lightning swaps (21:32)

Stratum V2 Reference Implementation v1.0.0 released (22:46)

Teleport Transactions update (25:09)

Bitcoin Keeper v1.2.1 released (28:10)

BIP-329 label management software (29:02)

Key agent Sigbash launches (31:37)
Releases and release candidates
Bitcoin Core 27.0 (35:19)

BTCPay Server 1.13.1 (41:50)

LDK 0.0.122 (42:55)
Notable code and documentation changes
LDK #2704 (44:40)
55 min
April 15, 2024Bitcoin Optech: Newsletter #297 Recap
Dave Harding and Mike Schmidt are joined by Kulpreet Singh, Chris Stewart, Jameson Lopp, and Joost Jager to discuss ⁠Newsletter #297⁠.

News
DSL for experimenting with contracts (1:24)

Updating BIP2 (15:50)

Discussion about resetting and modifying testnet (21:00)
Bitcoin Core PR Review Club
Implement 64 bit arithmetic op codes in the Script interpreter (37:19)
Releases and release candidates
HWI 3.0.0 (46:17)

Core Lightning 24.02.2 (48:06)

Bitcoin Core 27.0rc1 (49:41)
Notable code and documentation changes
Bitcoin Core #29648 (50:25)

Bitcoin Core #29130 (21:00)
1 hr 19 min
April 04, 2024Bitcoin Optech: Newsletter #296 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Antoine Poinsot to discuss ⁠Newsletter #296⁠.
News
Revisiting consensus cleanup (0:46)

Choosing new BIP editors (27:21)
Releases and release candidates
Bitcoin Core 26.1 (37:22)

Bitcoin Core 27.0rc1 (39:09)

HWI 3.0.0-rc1 (39:40)
Notable code and documentation changes
Bitcoin Core #27307 (40:59)

Bitcoin Core #29242 (43:50)

Core Lightning #7094 (52:59)

BDK #1351 (54:41)
1 hr 4 min
March 28, 2024Bitcoin Optech: Newsletter #295 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Dave Harding, Peter Todd, Abubakar Sadiq Ismail, David Gumberg, and Jeffrey Czyz to discuss Newsletter #295.

News
Disclosure of free relay attack (1:22)

Transaction fee sponsorship improvements (9:55)

Mempool-based feerate estimation (34:49)
Selected Q&A from Bitcoin Stack Exchange
What are the risks of running a pre-SegWit node (0.12.1)? (50:30)

When is OP_RETURN cheaper than OP_FALSE OP_IF? (55:51)

Why does BIP-340 use secp256k1? (56:33)

What criteria does Bitcoin Core use to create block templates? (58:08)

How does the initialblockdownload field in the getblockchaininfo RPC work? (1:04:45)
Releases and release candidates
Bitcoin Core 26.1rc2 (1:07:34)

Bitcoin Core 27.0rc1 (1:07:55)
Notable code and documentation changes
Bitcoin Core #28950 (1:17:13)

LND #8418 (1:19:07)

LDK #2756 (1:23:44)

LDK #2935 (1:25:55)

LDK #2419 (1:27:39)

Rust Bitcoin #2549 (1:32:54)

BTCPay Server #5852 (1:33:36)
1 hr 37 min
March 21, 2024Bitcoin Optech: Newsletter #294 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Sebastian Falbesoner, Anthony Towns, and Russell O’Connor to discuss ⁠Newsletter #294⁠.

News
BIP324 proxy for light clients (1:20)

Overview of BTC Lisp (10:44)
Changes to services and client software
BitGo adds RBF support (38:59)

Phoenix Wallet v2.2.0 released (40:11)

Bitkey hardware signing device released (44:19)

Envoy v1.6.0 released (47:49)

VLS v0.11.0 released (49:22)

Portal hardware signing device announced (50:54)

Braiins mining pool adds Lightning support (51:44)

Ledger Bitcoin App 2.2.0 released (54:14)
Releases and release candidates
Bitcoin Core 26.1rc2 (55:51)

Bitcoin Core 27.0rc1 (56:48)
Notable code and documentation changes
Bitcoin Core #27375 (57:43)

Bitcoin Core #27114 (58:59)

Bitcoin Core #29306 (1:02:19)

LND #8310 (1:09:04)

Rust Bitcoin #2458 (1:10:12)
1 hr 12 min
March 14, 2024Bitcoin Optech: Newsletter #293 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by ZmnSCPxj, Anthony Towns, and Armin Sabouri to discuss Newsletter #293.

News
Trustless onchain betting on potential soft forks (1:11)

Overview of Chia Lisp for Bitcoiners (14:06)
Bitcoin Core PR Review Club
Re enable `OP_CAT` (35:48)
Releases and release candidates
Core Lightning v24.02.1 (50:33)

Bitcoin Core 26.1rc1 (51:03)

Bitcoin Core 27.0rc1 (52:11)
Notable code and documentation changes
LND #8136 (54:58)

LND #8499 (57:26)

LDK #2916 (58:31)
1 hr 1 min
March 07, 2024Bitcoin Optech: Newsletter #292 Recap
Mark “Murch” Erhardt and Dave Harding are joined by Josie Baker, Salvatore Ingala, and Fabian Jahr to discuss ⁠Newsletter #292⁠.
News
Updating BIP21 `bitcoin:` URIs (18:07)

PSBTs for multiple concurrent MuSig2 signing sessions (46:30)

Discussion about adding more BIP editors (58:33)

GitLab backup for Bitcoin Core GitHub project (1:11)
Releases and release candidates
Eclair v0.10.0 (1:03:24)

Bitcoin Core 26.1rc1 (1:05:18)
Notable code and documentation changes
Bitcoin Core #29412 (1:06:53)

Eclair #2829 (1:17:29)

LND #8378 (1:19:06)

BIPs #1421 (1:20:28)
1 hr 23 min
March 01, 2024Bitcoin Optech: Newsletter #291 Recap
Mark “Murch” Erhardt and Mike Schmidt are joined by Richard Myers, Rijndael, Luke Dashjr, and Jason Hughes to discuss Newsletter #291.

News
Trustless contract for miner feerate futures (1:31)

Coin selection for liquidity providers (7:18)

Simple vault prototype using `OP_CAT` (21:15)

Sending and receiving ecash using LN and ZKCPs (44:44)
Selected Q&A from Bitcoin Stack Exchange
Why can't nodes have the relay option to disallow certain transaction types? (49:41)

What is the circular dependency in signing a chain of unconfirmed transactions? (53:28)

How does Ocean’s TIDES payout scheme work? (34:02)

What data does the Bitcoin Core wallet search for during a blockchain rescan? (57:57)

How does transaction rebroadcasting for watch-only wallets work? (59:37)
Releases and release candidates
Core Lightning 24.02 (1:02:20)
Notable code and documentation changes
LDK #2770 (1:04:20)
1 hr 6 min