Does a Mass-Dominant Planetary Magnetic Regime Exist?

This paper proposes a dominant-mass planetary magnetic regime and distinguishes it from established dependencies of planetary interiors and dynamos on mass, material properties, configuration and evolution. H3 proposes a higher-mass regime in which planetary mass becomes generative of a magnetic field produced by internal processes. Field presence would be maintained across the configurations included in the intended physical domain, while configuration would continue to influence field characteristics. Robustness therefore concerns preservation of field presence, not merely a higher probability or frequency of occurrence. The magnetic target is defined separately for each epoch. Remanence may provide evidence of a past field but does not establish continuing generation, and external induction alone does not demonstrate the generation proposed by H3. Five linked research targets address regime existence, transition, independent identification, configuration robustness and mediated generativity. A proposed testing architecture distinguishes exploratory boundary discovery from independent confirmation and observational constraints from conditional model results. Within-body comparisons, cross-body comparisons and published model ensembles provide possible approaches; no new observations or simulations are reported. H3 is not demonstrated. Its boundary, configuration domain and operational failure criteria remain unspecified. No exact measurable residual or novelty has been established, and the proposed architecture is not a completed falsification protocol or preregistration.