Publications
Recent publications from our blog posts and newsletters.
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Bitcoin Optech Newsletter #138
This week’s newsletter describes discussion about a desired replacement for some of the features of the BIP70 payment protocol and summarizes proposals for a standardized way to exchange fraud proofs for Discreet Log Contracts (DLCs). Also included are our regular sections describing new software releases, available release candidates, and notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #137
This week’s newsletter describes the results of discussion about choosing activation parameters for a taproot soft fork and includes our regular sections with selected questions and answers from the Bitcoin StackExchange, releases and release candidates, and notable changes to popular Bitcoin infrastructure software.
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Pausing the Membership Program
As business travel remains on hold in many parts of the world due to the COVID-19 pandemic, we're temporarily pausing our membership model. We'll continue to provide high-quality online technical material for engineers working on Bitcoin. -
Bitcoin Optech Newsletter #136
This week’s newsletter describes the development of a new constant-time algorithm for generating and verifying transaction signatures, mentions a proposal to stop processing unsolicited transactions, summarizes a proposed BIP for setting up multisig wallets, shares insight from a discussion about managing escrows over LN, links to renewed discussion about bidirectional upfront LN fees, and mentions a new protocol for mitigating the risk of malicious hardware wallets. Also included are our regular sections with news about updated clients and services, announcements of new software releases and release candidates, and descriptions of notable changes in popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #135
This week’s newsletter links to the summary of last week’s taproot activation meeting and announces another scheduled meeting for next week, plus it describes recent progress in discreet log contracts and a new mailing list for discussing them. Also included are our regular sections with the summary of a Bitcoin Core PR Review Club meeting, descriptions of releases and release candidates, and a list of notable changes to popular Bitcoin infrastructure projects.
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Bitcoin Optech Newsletter #134
This week’s newsletter links to a blog post about how a small change to the Script language after taproot activation could enable increased contract flexibility and includes our regular sections with notable changes to popular Bitcoin infrastructure projects.
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Bitcoin Optech Newsletter #133
This week’s newsletter announces a meeting to discuss taproot activation mechanisms, includes a link to a Bitcoin Core usage survey, and includes our regular sections with top questions and answers from the Bitcoin StackExchange, a list of releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #132
This week’s newsletter summarizes posts to the Bitcoin-Dev mailing list about payjoin adoption and making hardware wallets compatible with more advanced Bitcoin features. Also included are our regular sections with overviews of changes to services and client software, new releases and release candidates, and changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #131
This week’s newsletter describes a new proposed Bitcoin P2P protocol message, a BIP for the bech32 modified address format, and an idea for preventing UTXO probing in proposed dual-funded LN channels. Also included are our regular sections with the summary of a Bitcoin Core PR Review Club meeting, a list of releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #130
This week’s newsletter describes a proposed update to BIP322 generic message signing and links to a specification for LN trampoline routing. Also included are our regular sections with announcements of releases, release candidates, and notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #129: 2020 Year-in-Review Special
This special edition of the Optech Newsletter summarizes notable developments in Bitcoin during all of 2020. -
Bitcoin Optech Newsletter #128
This week’s newsletter describes two suggested improvements to LN static backups and links to a proposal for a new version of PSBTs. Also included are our regular sections with summaries of changes to services and client software, popular questions and answers from the Bitcoin StackExchange, new releases and release candidates, and notable changes to popular Bitcoin infrastructure projects.
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Bitcoin Optech Newsletter #127
This week’s newsletter describes a proposed change to the bech32 address format for taproot, mentions a bug handling certain QR-encoded addresses, thanks new members of the Cryptocurrency Open Patent Alliance, and mentions new features of the Minsc policy language and compiler. Also included are our regular sections with summaries of a recent Bitcoin Core PR Review Club meeting, new software releases and release candidates, and notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #126
This week’s newsletter describes a proposal for using fidelity bonds on LN to prevent denial of service attacks, summarizes a PR to address a fee siphoning attack that could affect LN channels using anchor outputs, and links to a proposed specification for miniscript. Also included are our regular sections with releases, release candidates, and recent code changes in popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #125
This week’s newsletter links to a website that tracks miner support for taproot activation, announces a new organization funding Bitcoin research and development, and includes our regular sections with popular questions and answers from the Bitcoin StackExchange, announcements of releases and release candidates, and notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #124
This week’s newsletter contains a warning about backdoored VM images. Also included are our regular sections with summaries of notable improvements to clients and services, announcements of releases and release candidates, and changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #123
This week’s newsletter shares the announcement of a marketplace for incoming LN channels. Also included are our regular sections with summaries of a Bitcoin Core PR Review Club meeting and notable changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #122
This week’s newsletter summarizes a discussion about bi-directional upfront fees for LN and relays the results of a small survey among experts about their preferences for taproot activation. Also included are our regular sections with updates about various projects.
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Bitcoin Optech Newsletter #121
This week’s newsletter describes the disclosure of two vulnerabilities in LND and includes our regular sections with summaries of popular questions and answers from the Bitcoin StackExchange, announcements of releases and release candidates, and descriptions of changes to popular Bitcoin infrastructure software.
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Bitcoin Optech Newsletter #120
This week’s newsletter provides an overview of the new MuSig2 paper, summarizes additional discussion about upfront fees in LN, and describes a proposal to simplify management of LN payments. Also included are our regular sections with summaries of notable improvements to clients and services, announcements of releases and release candidates, and changes to popular Bitcoin infrastructure software.
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