Bitcoin Optech

18 Aug 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Michael Ford (fanquake) and Martin Zumsande to discuss Newsletter #418.

14 Aug 2026

This week’s newsletter describes a proposed contract protocol for mitigating Lightning Network channel jamming, reports on the availability of static Bitcoin Core binaries for testing, and

11 Aug 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Conduition, Ram, and Fabian Jahr to discuss Newsletter #417.

7 Aug 2026

This week’s newsletter describes a draft BIP for relaying stale block tips between peers. Also included are our regular sections summarizing proposals and discussion about changing Bitcoin’s

4 Aug 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Rob Hamilton, PortlandHODL, Chandra Pratap, and fabohax to discuss Newsletter #416.

31 Jul 2026

This week’s newsletter warns about a severe vulnerability affecting wallets generated by COLDCARD signing devices, summarizes the disclosure of two denial-of-service vulnerabilities in Core

28 Jul 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Fabian Jahr, Kruw, and Mojo to discuss Newsletter #415.

24 Jul 2026

This week’s newsletter describes a draft BIP for full aggregation of BIP340 signatures. Also included are our regular sections describing recent changes to services and client software, announcing

21 Jul 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Keagan McClelland and Andrew Toth to discuss Newsletter #414.

17 Jul 2026

This week’s newsletter describes a new project to apply formal verification to the Bitcoin protocol. Also included are our regular sections announcing new releases and release candidates, and

14 Jul 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Sjors Provoost to discuss Newsletter #413.

10 Jul 2026

This week’s newsletter describes research into using fountain codes to allow pruned nodes to contribute to initial block download. Also included are our regular sections announcing new releases and

7 Jul 2026

Mark “Murch” Erhardt and Mike Schmidt are joined by Conduition and Jeremy Rubin to discuss Newsletter #412.