Publications
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Newsletters: a weekly summary of news about Bitcion and LN development.
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Blog posts: Occasional updates and reference material from the Optech team.
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Podcast Episodes: Audio discussions of our newsletters.
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Bitcoin Optech Newsletter #239 Recap Podcast
Mark “Murch” Erhardt and Mike Schmidt are joined by James O’Beirne, Christian Decker, and Russell O’Connor to discuss Newsletter #239.
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Bitcoin Optech Newsletter #239
This week’s newsletter links to a draft BIP for the proposed
OP_VAULTopcode, summarizes a discussion about allowing LN nodes to set a quality-of-service flag on their channels, relays a request for feedback on LN neighbor-node evaluation criteria, and describes a draft BIP for a seed backup and recovery scheme that can be reliably performed without electronics. Also included are our regular sections with summaries of popular questions and answers from the Bitcoin StackExchange, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software. -
Bitcoin Optech Newsletter #238
This week’s newsletter summarizes continued discussion about storing data in the Bitcoin block chain, describes a hypothetical fee dilution attack against some types of multiparty protocols, and describes how a tapscript signature commitment can be used with different parts of the same tree. Also included are our regular sections with summaries of changes to services and client software, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software. We additionally provide one of our rare recommendations for a new search engine focused on Bitcoin technical documentation and discussion.
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Bitcoin Optech Newsletter #237
This week’s newsletter summarizes a discussion about storing data in transaction witnesses and references a conversation about mitigating LN jamming. Also included are our regular sections with the summary of a Bitcoin Core PR Review Club meeting and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #236
This week’s newsletter summarizes a proposal for serverless payjoin and describes an idea for allowing proof of payment for LN async payments. Also included is our regular section with descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #235
This week’s newsletter summarizes an analysis comparing proposals for ephemeral anchors to
SIGHASH_GROUPand relays a request for researchers to investigate how to create proof that an LN async payment was accepted. Also included are our regular sections with summaries of popular questions and answers on the Bitcoin Stack Exchange and descriptions of notable changes to popular Bitcoin infrastructure software. -
Bitcoin Optech Newsletter #234
This week’s newsletter describes a proposal for new vault-specific opcodes and includes our regular sections with summaries of interesting updates to clients and services, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #233
This week’s newsletter describes an idea for allowing offline LN nodes to receive funds onchain that they’ll later be able to use offchain without extra delay. Also included are our regular sections with summaries of new software releases and release candidates, plus descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #232
This week’s newsletter warns users of Bitcoin Knots about a release signing key compromise, announces the release of two software forks of Bitcoin Core, and summarizes continued discussion about replace-by-fee policies. Also included are our regular sections with the announcements of new software releases and release candidates, plus descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #231: 2022 Year-in-Review Special
This special edition of the Optech Newsletter summarizes notable developments in Bitcoin during all of 2022. -
Bitcoin Optech Newsletter #230
This week’s newsletter summarizes a proposal for a modified version of LN that may improve compatibility with channel factories, describes software for mitigating some effects of channel jamming attacks without changing the LN protocol, and links to a website for tracking unsignaled transaction replacements. Also included are our regular sections with announcements of new client and service software, summaries of popular questions and answers on the Bitcoin Stack Exchange, and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #229
This week’s newsletter describes an implementation of ephemeral anchors and includes our regular sections with the summary of a Bitcoin Core PR Review Club meeting, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure projects.
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Bitcoin Optech Newsletter #228
This week’s newsletter describes a proposal to mitigate LN jamming attacks using reputation credential tokens. Also included are our regular sections with announcements of new software releases and release candidates and summaries of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #227
This week’s newsletter contains our regular sections with selected questions and answers from the Bitcoin Stack Exchange, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure projects.
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Bitcoin Optech Newsletter #226
This week’s newsletter describes a proposal to enable generalized smart contracts on Bitcoin and summarizes a paper about addressing LN channel jamming attacks. Also included are our regular sections with descriptions of changes to services and client software, announcements of new releases and release candidates, and summaries of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #225
This week’s newsletter summarizes continued discussion about a configuration option for enabling full-RBF in Bitcoin Core and describes a bug affecting BTCD, LND, and other software. Also included are our regular sections with the summary of a Bitcoin Core PR Review Club meeting, descriptions of new releases and release candidates, and overviews of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #224
This week’s newsletter describes continued discussion about optionally allowing nodes to enable full RBF, relays a request for feedback on a design element of the BIP324 version 2 encrypted transport protocol, summarizes a proposal for reliably attributing LN failures and delays to particular nodes, and links to a discussion about an alternative to using anchor outputs for modern LN HTLCs. Also included are our regular sections with the announcements of new software releases and release candidates—including a security critical update for LND—and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #223
This week’s newsletter summarizes continued discussion about enabling full RBF, provides overviews for several transcripts of discussions at a CoreDev.tech meeting, and describes a proposal for ephemeral anchor outputs designed for contract protocols like LN. Also included are our regular sections with summaries of popular questions and answers from the Bitcoin Stack Exchange, a list of new software releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #222
This week’s newsletter describes the block parsing bug affecting BTCD and LND last week, summarizes discussion about a planned Bitcoin Core feature change related to replace by fee, outlines research about validity rollups on Bitcoin, shares an announcement about a vulnerability in the draft BIP for MuSig2, examines a proposal to reduce the minimum size of an unconfirmed transaction that Bitcoin Core will relay, and links to an update of the BIP324 proposal for a version 2 encrypted transport protocol for Bitcoin. Also included are our regular sections with summaries of changes to services and client software, announcements of new releases and release candidates, and descriptions of notable merges to popular Bitcoin infrastructure projects.
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Bitcoin Optech Newsletter #221
This week’s newsletter summarizes a proposal to allow casual LN users to stay offline for up to several months at a time and describes a document about allowing transaction information servers to host unused wallet addresses. Also included are our regular sections with the summary of a Bitcoin Core PR Review Club, announcements of new software releases and release candidates (including a critical LND fix), and descriptions of notable changes to popular Bitcoin infrastructure software.
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