© 2026 JB Bullock. Solarian — Comparative Evaluation of Planetary Calendar Architectures. Initial Public Issue 1.0, October 2026. The author's original content in this standalone companion publication is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0): https://creativecommons.org/licenses/by/4.0/ Attribution should identify JB Bullock, the publication title and released version, link to the canonical publication and licence, and indicate changes. Third-party content, if separately identified, is excluded unless expressly stated otherwise. This notice does not license the separate Solarian book or its complete artwork. STATUS: INITIAL PUBLIC ISSUE 1.0, OCTOBER 2026, conditional on author-approved public deployment. No standalone normative protocol publication or DOI is claimed.