EXTRACTED METHOD: tool_mark_phi_ratio_test — E8 Intelligence Research
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Abstract
rule: Measure groove pitch, radius, and depth ratios from image stills; flag if any ratio equals phi (1.618) or golden angle (137.5°) within 1% tolerance. source: rlab #187 Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
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View paper (DOI)Open access versionOpenAlexZenodo (CERN European Organization for Nuclear Research)Published 2026-08-24
Authors: Andrew Stewart Caldin