Bitcoin Optech Podcast26 Loka 2023

Bitcoin Optech: Newsletter #274 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by Bastien Teinturier, Fabian Jahr, Ethan Heilman, and Armin Sabouri to discuss Newsletter #274.

News

Replacement cycling vulnerability against HTLCs (1:40)
Bitcoin UTXO set summary hash replacement (24:21)
Research into generic covenants with minimal Script language changes (40:02)
Proposed BIP for OP_CAT (45:38)

Selected Q&A from Bitcoin Stack Exchange

How does the Branch and Bound coin selection algorithm work? (52:17)
Why is each transaction broadcast twice in the Bitcoin network? (54:29)
Why are OP_MUL and OP_DIV disabled in Bitcoin? (56:57)
Why are hashSequence and hashPrevouts computed separately? (58:56)
Why does Miniscript add an extra size check for hash preimage comparisons? (59:52)
How can the next block fee be less than the mempool purging fee rate? (1:00:51)

Releases and release candidates

Bitcoin Core 25.1 (1:12:00)
Bitcoin Core 24.2 (1:12:00)
Bitcoin Core 26.0rc1 (1:14:23)

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Bitcoin Optech: Newsletter #380 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by TheCharlatan to discuss Newsletter #380.Releases and release candidates● LND 0.20.0-beta.rc4 (1:30) Notable code and documentation changes● Bitcoin ...

18 Marras 202544min

Bitcoin Optech: Newsletter #379 Recap

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Sebastian Falbesoner, PortlandHODL, Tadge Dryja, and Antoine Poinsot to discuss Newsletter #379.News● Comparing performance ...

12 Marras 20252h 7min

Bitcoin Optech: Newsletter #378 Recap

Mark “Murch” Erhardt and Mike Schmidt discuss Newsletter #378.News● CPU DoS from unconfirmed transaction processing (1:00) Selected Q&A from Bitcoin Stack Exchange● Why was -datacarriersize redefined ...

4 Marras 20251h 2min

Bitcoin Optech: Newsletter #377 Recap

Gustavo Flores Echaiz and Mike Schmidt are joined by Abubakar Sadiq Ismail and Carla Kirk-Cohen to discuss ⁠Newsletter #377⁠.News● Detecting block template feerate increases using cluster mempool (1:0...

29 Loka 202555min

Bitcoin Optech: Newsletter #376 Recap

Gustavo Flores Echaiz and Mike Schmidt are joined by Francesco Madonna and supertestnet to discuss Newsletter #376.News● Continued discussion of block template sharing (17:30) ● B-SSL a Secure Bitcoin...

28 Loka 202538min

Bitcoin Optech: Newsletter #375 Recap

Gustavo Flores Echaiz and Mike Schmidt are joined by Sindura Saraswathi, ZmnSCPxj, and Eugene Siegel to discuss ⁠Newsletter #375⁠.News● Optimal Threshold Signatures (1:56) ● Flattening certain nested ...

17 Loka 20251h 2min

Bitcoin Optech: Newsletter #374 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by Gustavo Flores Echaiz to discuss Newsletter #374.Changing consensus● Draft BIPs for Script Restoration (0:40) Releases and release candidates● Bitco...

7 Loka 202546min

Bitcoin Optech: Newsletter #373 Recap

Mark “Murch” Erhardt and Mike Schmidt are joined by Matt Morehouse, Daniela Brozzoni, and Gustavo Flores Echaiz to discuss Newsletter #373.News● Eclair vulnerability (18:50) ● Research into feerate se...

1 Loka 20251h 44min

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