A Minimal, Executable Specification for Bitcoin Consensus

Sep 20 - Sep 20, 2025

  • The email outlines the development of a new specification for Bitcoin consensus rules by the sender.

This project is characterized by its adoption of a declarative-style and executable approach, utilizing modern C++ along with the inception of a domain-specific language (DSL) designed to enable formal verification processes. The specification, referred to as the Hornet Node and the accompanying Hornet DSL, represents a minimal yet executable framework for understanding and implementing Bitcoin consensus mechanisms.

The sender details the current progress of the project, noting that it successfully synchronizes headers and blocks up to the current endpoint, with plans to incorporate full script validation in future updates. This indicates a significant milestone in ensuring the Hornet Node's functionality aligns closely with the operational standards of Bitcoin's existing protocol, emphasizing its utility and potential in enhancing the robustness of Bitcoin's consensus validations.

The write-up of this innovative approach to Bitcoin consensus can be found at Hornet Node and the Hornet DSL: A Minimal, Executable Specification for Bitcoin Consensus. The author, expressing an openness to discussion despite not frequently checking the mailing list, provides a direct contact email for further engagement on the subject matter. Additionally, there is a mention of making the code publicly available once it reaches a certain stage of readiness, inviting collaboration and review from others in the field.

This communication was shared with subscribers of the Google Groups "Bitcoin Development Mailing List," indicating its relevance to developers and participants interested in the evolution of Bitcoin's technical infrastructure. The initiative to create a more accessible and verifiable specification for Bitcoin's consensus rules reflects a broader trend towards increasing transparency, efficiency, and security in blockchain technology development.

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