KOKU as a Market Timing Signal: From the Existence of φ₂ to Predictive Application

Building directly on the φ₂ existence proof (DOI: 10.5281/zenodo.20350004), this paper develops KOKU (the silence interval between IceCube GOLD-class neutrino events) as an operational market timing signal. The complete logical chain from φ₂ existence to gold price prediction is formalized. The Golden Condition (KOKU > 100 days AND signalness ≥ 0.6) is identified as producing 66.7% win rates across N=5 qualifying historical cases. A Two-Layer prediction framework integrates KOKU-based cosmic timing (40%) with macro-economic ground scoring (60%), with ENTRY threshold ≥ 65. Current status: KOKU = 161 days (97th percentile, 2.8σ anomaly), Golden Condition ACTIVE, Total Score = 63.4 (STANDBY). Pre-registered falsification test set for CSS Event Window May 25–30, 2026. Explicit limitations: N is small, framework is a research instrument not a trading system, macro conditions can override cosmic signals. The human element — 16 years of persistent questioning from Fukui, Japan — is retained as a feature, not a bug.