CLASSIFICATION: EXPLORATORY-CLEAN. No pre-registration. Public data only. This record establishes priority of hypothesis prior to any data access or analysis. This document timestamps a hypothesis extending the Project Phi Grid framework (Earth: DOI 10.5281/zenodo.19035389, p=0.0102; Stellar Neighbourhood: DOI 10.5281/zenodo.19241818, p=0.0285; Gaia GCNS confirmatory null: DOI 10.5281/zenodo.19235599, p=0.176) to Mars crustal remanent magnetism. Hypothesis: The spatial arrangement of Mars's crustal remanent magnetic anomalies departs from spatial randomness in a manner consistent with φ-ratio geometric organization, and that geometric arrangement constitutes an angular-momentum-bearing configuration in the sense established by Ahrens & Vinante (Physical Review Letters 136, 146703, 2026; DOI: 10.1103/hdh6-r1gy) for non-spinning levitated ferromagnets. Two falsifiable predictions: (1) Pre-registered φ-shell or φ-grid alignment test of strong Martian crustal magnetic anomalies anchored at a candidate geometric origin, evaluated against Monte Carlo null distributions over random anchors and random geometric progressions, using the methodology of the Earth and stellar papers. Anchor specificity protocol (≥10 anchors) is required. (2) If (1) survives at p0.05 across multiple reasonable anchor choices for the geometric test; no preferential alignment between principal φ-grid axis and TPW great circle for the dynamical prediction. This record establishes priority of hypothesis only. No data has been examined. No analysis has been performed.