Parameter-Free Photon Ring Splitting from Spacetime-Inverse Metrics: 1.06x Prediction for ngEHT

We present a parameter-free derivation predicting that the Event Horizon Telescope should observe a secondary photon ring at 1.06066x the radius of the primary ring. The result emerges from metric inversion g_μν → g_μν^(-1) at a reductive zero state, corrected by Apéry's constant ζ(3). Four falsifiable predictions for EHT, LISA, JWST, CMB-S4. Derived from G, c, ℏ only. No free parameters.