Bitcoin Optech Podcast
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Join Bitcoin Optech as we discuss Bitcoin and Lightning technology each week and review our newsletters.
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Bitcoin Optech Podcast
5d ago
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 te ..read more
Bitcoin Optech Podcast
1w ago
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 ..read more
Bitcoin Optech Podcast
2w ago
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 ..read more
Bitcoin Optech Podcast
3w ago
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 ..read more
Bitcoin Optech Podcast
1M ago
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 initial ..read more
Bitcoin Optech Podcast
1M ago
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 releas ..read more
Bitcoin Optech Podcast
1M ago
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 ..read more
Bitcoin Optech Podcast
1M ago
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 ..read more
Bitcoin Optech Podcast
1M ago
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 sche ..read more
Bitcoin Optech Podcast
2M ago
Mark “Murch” Erhardt and Mike Schmidt are joined by Gloria Zhao, callebtc, Chris Stewart, Fabian Jahr, and Pierre Corbin to discuss Newsletter #290.
News
DNS-based human-readable Bitcoin payment instructions (1:41)
Thinking about mempool incentive compatibility (9:50)
Cashu and other ecash system design discussion (29:15)
Continued discussion about 64-bit arithmetic and `OP_INOUT_AMOUNT` opcode (39:52)
Improved reproducible ASMap creation process (49:17)
Changes to services and client software
Multiparty coordination protocol NWC announced (1:11:00)
Mutiny Wallet v0.5.7 released (1:1 ..read more