Jon McAlpine, Antoine Poinsot, Mike Casey, and Ethan Heilman joined Optech to discuss Newsletter #395: - A standard for stateless VTXO verification - Draft BIP for expanded nVersion nonce space for miners - Extensions to standard tooling for TEMPLATEHASH-CSFS-IK support - Hourglass V2 update - Algorithm agility for Bitcoin - The limitations of cryptographic agility in Bitcoin - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #395 Recap Podcast

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Jon McAlpine, Antoine Poinsot, Mike Casey, and Ethan Heilman to dis...

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #395 Recap • Listen on Fountain

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Jon McAlpine, Antoine Poinsot, Mike Casey, and Ethan Heilman to dis...

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Bitcoin Optech: Newsletter #395 Recap

Podcast Episode · Bitcoin Optech Podcast · March 11 · 2h 8m

Bitcoin Optech newsletter #395 is here: - describes a standard for verifying VTXOs across different Ark implementations - links to a draft BIP for expanding the miner-usable nonce space in the block header’s nVersion field - points to extensions to standard tooling for TEMPLATEHASH-CSFS-IK support - summarizes updates to the Hourglass V2 proposal - examines perspectives on cryptographic algorithm agility for Bitcoin - Optech Newsletter #395 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Jgmcalpine posted to Delving Bitcoin about his proposal for V-PACK, a stateless VTXO verification standard, which aims to provide a mechanism to independently verify and visualize VTXOs in the Ark ecosystem...

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Matt Corallo posted to the Bitcoin-Dev mailing list a draft BIP to increase the number of bits available in nVersion’s nonce space for miners from 16 to 24...

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Antoine Poinsot wrote on the Bitcoin-Dev mailing list about his preliminary work to integrate the taproot-native OP_TEMPLATEHASH soft fork proposal into miniscript and PSBTs...

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Mike Casey posted an update to the Bitcoin-Dev mailing list for the Hourglass protocol to mitigate the market impact of quantum attacks against certain lost coins...

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Ethan Heilman wrote on the Bitcoin-Dev mailing list regarding the potential need for RFC7696 Cryptographic Algorithm Agility in Bitcoin...

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Pieter Wuille wrote to the Bitcoin-Dev mailing list about the limitations of the cryptographic agility...

Bitcoin Optech

Bitcoin Optech Newsletter #395

This week’s newsletter describes a standard for verifying VTXOs across different Ark implementations and links to a draft BIP for expanding the m...

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.

Craig Raw and Fabian Jahr joined Optech to discuss Newsletter #394: - Draft BIP for output script descriptor annotations - ASMap in Bitcoin Core - Bitcoin Stack Exchange questions about BIP324 and spy mining - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #394 Recap Podcast

Mark “Murch” Erhardt and Mike Schmidt are joined by Craig Raw and Fabian Jahr to discuss Newsletter #394.

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #394 Recap • Listen on Fountain

Mark “Murch” Erhardt and Mike Schmidt are joined by Craig Raw and Fabian Jahr to discuss Newsletter #393.News● Draft BIP for output script d...

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Bitcoin Optech: Newsletter #394 Recap

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Bitcoin Optech: Newsletter #394 Recap

Podcast Episode · Bitcoin Optech Podcast · March 3 · 1h 4m

Bitcoin Optech newsletter #394 is here: - looks at a proposed BIP for including supplemental information with output script descriptors - summarizes popular Q&A from Stack Exchange - Optech Newsletter #394 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #394

This week’s newsletter looks at a proposed BIP for including supplemental information with output script descriptors. Also included are our regul...

Craig Raw posted to the Bitcoin-Dev mailing list about a new BIP idea to provide useful metadata in the form of annotations, expressed as key/value pairs, appended directly to the descriptor...

Bitcoin Optech

Bitcoin Optech Newsletter #394

This week’s newsletter looks at a proposed BIP for including supplemental information with output script descriptors. Also included are our regul...

Selected Q&A from Bitcoin Stack Exchange - Is Bitcoin BIP324 v2 P2P transport distinguishable from random traffic? - What if a miner just broadcasts the header and never gives the block?

Bitcoin Optech

Bitcoin Optech Newsletter #394

This week’s newsletter looks at a proposed BIP for including supplemental information with output script descriptors. Also included are our regul...

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.

Misha Komarov, Erik De Smedt, and arbedout joined Optech to discuss Newsletter #393: - Recent OP_RETURN output statistics - Bitcoin PIPEs v2 - Changes to services and client software including: hArk-based Ark software, Sigbash v2 and others - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #393 Recap Podcast

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Misha Komarov, Erik De Smedt, and arbedout to discuss Newsletter #393.

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #393 Recap • Listen on Fountain

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Misha Komarov, Erik De Smedt, and arbedout to discuss ⁠Newslette...

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Bitcoin Optech: Newsletter #393 Recap

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Bitcoin Optech: Newsletter #393 Recap

Podcast Episode · Bitcoin Optech Podcast · February 24 · 1h 31m

Sebastian Falbesoner and Oleksandr Kurbatov joined Optech to discuss Newsletter #392: - Proposal to limit the number of per-group silent payment recipients - BLISK, Boolean circuit Logic Integrated into the Single Key - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #392 Recap Podcast

Mark “Murch” Erhardt and Gustavo Flores Echaiz are joined by Sebastian Falbesoner and Oleksandr Kurbatov to discuss Newsletter #392.

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #392 Recap • Listen on Fountain

Mark “Murch” Erhardt and Gustavo Flores Echaiz are joined by Sebastian Falbesoner and Oleksandr Kurbatov to discuss ⁠Newsletter #392⁠.News...

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Bitcoin Optech: Newsletter #392 Recap

Podcast Episode · Bitcoin Optech Podcast · February 24 · 1h 32m

Bitcoin Optech newsletter #393 is here: - summarizes a discussion about recent OP_RETURN usage - describes a protocol to enforce covenant-like spending conditions without consensus changes - summarizes changes to services/client software including Ark software, silent payment and submarine swap support, and more - Optech Newsletter #393 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #393

This week’s newsletter summarizes a discussion about recent OP_RETURN usage and describes a protocol to enforce covenant-like spending conditions...

Anthony Towns posted to Delving about the recent OP_RETURN statistics since the release of Bitcoin Core v30.0 on October 10...

Bitcoin Optech

Bitcoin Optech Newsletter #393

This week’s newsletter summarizes a discussion about recent OP_RETURN usage and describes a protocol to enforce covenant-like spending conditions...

Misha Komarov posted to Delving Bitcoin about Bitcoin PIPEs, a protocol that allows enforcement of spending conditions without the need for consensus changes or optimistic challenge mechanisms...

Bitcoin Optech

Bitcoin Optech Newsletter #393

This week’s newsletter summarizes a discussion about recent OP_RETURN usage and describes a protocol to enforce covenant-like spending conditions...

Changes to services and client software: - Second releases hArk-based Ark software - Amboss announces RailsX - Nunchuk adds silent payment support - Electrum adds submarine swap features - Sigbash v2 announced

Bitcoin Optech

Bitcoin Optech Newsletter #393

This week’s newsletter summarizes a discussion about recent OP_RETURN usage and describes a protocol to enforce covenant-like spending conditions...

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.

Bitcoin Optech newsletter #392 is here: - summarizes discussion of improving worst-case silent payment scanning performance - describes an idea for enabling many spending conditions in a single key - Optech Newsletter #392 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #392

This week’s newsletter summarizes discussion of improving worst-case silent payment scanning performance and describes an idea for enabling many ...

Sebastian Falbesoner posted to the Bitcoin-Dev mailing list the discovery and mitigation of a theoretical attack on silent payment recipients...

Bitcoin Optech

Bitcoin Optech Newsletter #392

This week’s newsletter summarizes discussion of improving worst-case silent payment scanning performance and describes an idea for enabling many ...

Oleksandr Kurbatov posted to Delving Bitcoin about BLISK, a protocol designed to express complex authorization policies using boolean logic...

Bitcoin Optech

Bitcoin Optech Newsletter #392

This week’s newsletter summarizes discussion of improving worst-case silent payment scanning performance and describes an idea for enabling many ...

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.

Toby Sharp, Chris Hyunhum Cho, Jonas Nick, and Antoine Poinsot joined Optech to discuss Newsletter #391: - Work on a constant-time parallelized UTXO database - A new higher level language for writing Bitcoin Script - An idea to mitigate dust attacks - Changing consensus including BIP54 consensus cleanup and post-quantum signature discussions including SHRINCS, Falcon, and SLH-DSA verification performance - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #391 Recap Podcast

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Toby Sharp, Chris Hyunhum Cho, Jonas Nick, and Antoine Poinsot to d...

Fountain:

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #391 Recap • Listen on Fountain

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Toby Sharp, Chris Hyunhum Cho, Jonas Nick, and Antoine Poinsot to d...

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Bitcoin Optech: Newsletter #391 Recap

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Bitcoin Optech: Newsletter #391 Recap

Podcast Episode · Bitcoin Optech Podcast · February 11 · 2h 10m

Bitcoin Optech newsletter #391 is here: - links to work on a constant-time parallelized UTXO database - summarizes a new high-level language for writing Bitcoin Script - describes an idea to mitigate dust attacks - covers the SHRINCS 324-byte stateful post-quantum signatures with static backups paper - highlights discussion to address remaining points on BIP54 - summarizes the Falcon post-quantum signature scheme proposal - links to research showing SLH-DSA verification can compete with ECC - Optech Newsletter #391 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Toby Sharp posted to Delving Bitcoin about his latest project, a custom, highly parallel UTXO database, with constant-time queries, called Hornet UTXO(1)...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Hyunhum Cho wrote on Delving Bitcoin about his work on Bithoven which is an alternative to miniscript...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Bubb1es posted to Delving Bitcoin about a way to dispose of dust attacks in onchain wallets...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Following-up on the Hash-based Signature Schemes for Bitcoin, Jonas Nick detailed on Delving Bitcoin a specific hash-based quantum-resistant signature algorithm with potentially useful properties for use in Bitcoin...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Antoine Poinsot wrote about the remaining points of discussion for the consensus cleanup soft fork...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Giulio Golinelli posted on the mailing list proposing a fork to enable Falcon signature verification to Bitcoin...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Conduition wrote about his ongoing work benchmarking his post-quantum SLH-DSA verification implementation against libsecp256k1...

Bitcoin Optech

Bitcoin Optech Newsletter #391

This week’s newsletter links to work on a constant-time parallelized UTXO database, summarizes a new high-level language for writing Bitcoin Scri...

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.

Liam Eagen joined Optech to discuss Newsletter #390: - The Argo garbled-circuits scheme - An LN-Symmetry update - 5 questions from the Bitcoin Stack Exchange - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #390 Recap Podcast

Mark “Murch” Erhardt and Gustavo Flores Echaiz are joined by Liam Eagen to discuss Newsletter #390.

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #390 Recap • Listen on Fountain

Mark “Murch” Erhardt and Gustavo Flores Echaiz are joined by Liam Eagen to discuss Newsletter #390.News● Argo: a garbled-circuits scheme wit...

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Bitcoin Optech: Newsletter #390 Recap

Podcast Episode · Bitcoin Optech Podcast · February 4 · 1h 3m

Bitcoin Optech newsletter #390 is here: - summarizes a more efficient approach to garbled circuits - links to an LN-Symmetry update - summarizes popular Q&A from Stack Exchange - Optech Newsletter #390 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #390

This week’s newsletter summarizes a more efficient approach to garbled circuits and links to an LN-Symmetry update. Also included are our regular...

Robin Linus posted to Delving Bitcoin about a new paper by Liam Eagen and Ying Tong Lai describing a technique that will enable 1000 times more efficient garbled locks...

Bitcoin Optech

Bitcoin Optech Newsletter #390

This week’s newsletter summarizes a more efficient approach to garbled circuits and links to an LN-Symmetry update. Also included are our regular...

Gregory Sanders posted an update to Delving Bitcoin about his previous work on LN-Symmetry...

Bitcoin Optech

Bitcoin Optech Newsletter #390

This week’s newsletter summarizes a more efficient approach to garbled circuits and links to an LN-Symmetry update. Also included are our regular...

Selected Q&A from Bitcoin Stack Exchange - What is stored in dbcache and with what priority? - Can one do a coinjoin in Shielded CSV? - In Bitcoin Core, how to use Tor for broadcasting new transactions only? - Brassard-Høyer-Tapp (BHT) algorithm and Bitcoin (BIP360) - Why does BitHash alternate sha256 and ripmed160?

Bitcoin Optech

Bitcoin Optech Newsletter #390

This week’s newsletter summarizes a more efficient approach to garbled circuits and links to an LN-Symmetry update. Also included are our regular...

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.

René Pickhardt joined Optech to discuss Newsletter #389: - A mathematical theory of payment channel networks - 2 updates to services and client software - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #389 Recap Podcast

Mark “Murch” Erhardt and Mike Schmidt are joined by René Pickhardt to discuss Newsletter #389.

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #389 Recap • Listen on Fountain

Mark “Murch” Erhardt and Mike Schmidt are joined by René Pickhardt to discuss ⁠Newsletter #389⁠.News● A mathematical theory of payment ...

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Bitcoin Optech: Newsletter #389 Recap

Podcast Episode · Bitcoin Optech Podcast · January 27 · 54m

Bitcoin Optech newsletter #389 is here: - links to a paper on the study of payment channel networks - summarizes changes to services/client software including an Electrum server for testing silent payments and a BDK WASM library - Optech Newsletter #389 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #389

This week’s newsletter links to a paper on the study of payment channel networks. Also included are our regular sections describing recent update...

René Pickhardt posted to Delving Bitcoin about the publication of his new paper called “A Mathematical Theory of Payment Channel Network”...

Bitcoin Optech

Bitcoin Optech Newsletter #389

This week’s newsletter links to a paper on the study of payment channel networks. Also included are our regular sections describing recent update...

Changes to services and client software: - Electrum server for testing silent payments - BDK WASM library

Bitcoin Optech

Bitcoin Optech Newsletter #389

This week’s newsletter links to a paper on the study of payment channel networks. Also included are our regular sections describing recent update...

Bitcoin Optech will host an audio recap discussion of this newsletter on

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Tuesday at 17:30 UTC. Join us to discuss or ask questions!

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Bruno Garcia explains his vision for incremental mutation testing in Bitcoin Core:

Bruno Garcia joined Optech to discuss Newsletter #388: - Incremental mutation testing in Bitcoin Core - BIP process updated - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #388 Recap Podcast

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Bruno Garcia to discuss Newsletter #388.

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Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #388 Recap • Listen on Fountain

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Bruno Garcia to discuss ⁠Newsletter #388⁠.News● An overview ...

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Bitcoin Optech: Newsletter #388 Recap

Podcast Episode · Bitcoin Optech Podcast · January 20 · 59m

Craig Raw (@craigraw) on silent payments. From Optech Recap #387

Bitcoin Optech newsletter #388 is here: - links to a discussion of incremental mutation testing in Bitcoin Core - announces deployment of a new BIP process - Optech Newsletter #388 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #388

This week’s newsletter links to a discussion of incremental mutation testing in Bitcoin Core and announces deployment of a new BIP process. Also ...

Bruno Garcia posted to Delving Bitcoin about his current work on improving mutation testing in Bitcoin Core. Mutation testing is a technique that allows developers to assess the effectiveness of their tests by intentionally adding systemic bugs, called mutants, to the codebase...

Bitcoin Optech

Bitcoin Optech Newsletter #388

This week’s newsletter links to a discussion of incremental mutation testing in Bitcoin Core and announces deployment of a new BIP process. Also ...

After more than two months of discussion on the mailing list and another round of amendments to the proposal, it became clear this week that BIP3 had achieved rough consensus...

Bitcoin Optech

Bitcoin Optech Newsletter #388

This week’s newsletter links to a discussion of incremental mutation testing in Bitcoin Core and announces deployment of a new BIP process. Also ...

Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside Tuesday at 17:30 UTC. Join us to discuss or ask questions!

Riverside Studio

René Pickhardt and Craig Raw joined Optech to discuss Newsletter #387: - Bitcoin Core wallet migration bug - Using Ark as a channel factory - Draft BIP for silent payment descriptors - And more You can listen on our website:

Bitcoin Optech

Bitcoin Optech Newsletter #387 Recap Podcast

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by René Pickhardt and Craig Raw to discuss Newsletter #387.

Fountain:

Fountain: Podcasts & Music

Bitcoin Optech Podcast • Bitcoin Optech: Newsletter #387 Recap • Listen on Fountain

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by René Pickhardt and Craig Raw to discuss ⁠Newsletter #387⁠.New...

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Bitcoin Optech: Newsletter #387 Recap

Podcast Episode · Bitcoin Optech Podcast · January 14 · 1h 24m

Bitcoin Optech newsletter #387 is here: - warns of a wallet migration bug in Bitcoin Core - summarizes a post about using the Ark protocol as an LN channel factory - links to a draft BIP for silent payment descriptors - Optech Newsletter #387 Podcast

Bitcoin Optech

Bitcoin Optech Newsletter #387

This week’s newsletter warns of a wallet migration bug in Bitcoin Core, summarizes a post about using the Ark protocol as an LN channel factory, ...

Bitcoin Core posted a notice of a bug in the legacy wallet migration feature in versions 30.0 and 30.1...

Bitcoin Optech

Bitcoin Optech Newsletter #387

This week’s newsletter warns of a wallet migration bug in Bitcoin Core, summarizes a post about using the Ark protocol as an LN channel factory, ...

René Pickhardt wrote on Delving Bitcoin about his discussions and ideas around whether Ark’s best use case might be as a flexible channel factory rather than as an end-user payment solution...

Bitcoin Optech

Bitcoin Optech Newsletter #387

This week’s newsletter warns of a wallet migration bug in Bitcoin Core, summarizes a post about using the Ark protocol as an LN channel factory, ...

Craig Raw posted to the Bitcoin-Dev mailing list a proposal for a draft BIP, which defines a new top-level descriptor script expression sp() for silent payments...

Bitcoin Optech

Bitcoin Optech Newsletter #387

This week’s newsletter warns of a wallet migration bug in Bitcoin Core, summarizes a post about using the Ark protocol as an LN channel factory, ...

Bitcoin Optech will host an audio recap discussion of this newsletter on

Riverside: HD Podcast & Video Software | Free Recording & Editing

Riverside is your online studio for high-quality podcast and video recording and editing. Powered by AI, built for human conversations. Get started...

Tuesday at 17:30 UTC. Join us to discuss or ask questions!

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