Bitcoin Optech Podcast Bitcoin Optech

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)

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)

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)

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)

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)

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)