Bitcoin Optech helps Bitcoin users and businesses integrate scaling technologies.

We provide workshops, weekly newsletters, case studies and announcements, analysis of Bitcoin software and services, a podcast, and help facilitate improved relations between businesses and the open source community.

Learn more about us.

Recent newsletters, blog posts, and podcasts

• Apr 25, 2025

  Bitcoin Optech Newsletter #351

  This week’s newsletter announces a new aggregate signature protocol compatible with secp256k1 and describes a standardized backup scheme for wallet descriptors. Also included are our regular sections summarizing recent Bitcoin Stack Exchange questions and answers, announcing new releases and release candidates, and describing notable changes to popular Bitcoin infrastructure software.

• Apr 22, 2025

  Bitcoin Optech Newsletter #350 Recap Podcast

  Mark “Murch” Erhardt and Mike Schmidt are joined by Niklas Gögge to discuss Newsletter #350.

• Apr 18, 2025

  Bitcoin Optech Newsletter #350

  This week’s newsletter includes our regular sections describing recent changes to services and client software, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software. Also included is a correction to some details from our story last week about SwiftSync.

• Apr 15, 2025

  Bitcoin Optech Newsletter #349 Recap Podcast

  Mark “Murch” Erhardt and Dave Harding are joined by Sebastian Falbesoner, Ruben Somsen, and Abubakar Sadiq Ismail to discuss Newsletter #349.

• Apr 11, 2025

  Bitcoin Optech Newsletter #349

  This week’s newsletter describes a proposal for speeding up Bitcoin Core initial block download, with a proof-of-concept implementation that shows a roughly 5x speed up compared to Bitcoin Core’s defaults. Also included are our regular sections summarizing a Bitcoin Core PR Review Club meeting, announcing new releases and release candidates, and describing notable changes to popular Bitcoin infrastructure projects.

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