"The BirdNest LLC independent data archive presents a groundbreaking 8-month longitudinal study of the GRB 250702B / EP250702a secondary optical subset, proving that high-energy cosmic events leave a measurable atmospheric footprint on Earth's ionosphere. Utilizing a proprietary contrast-gating method known as the Blackout Curtain (BOC), this research has captured never-before-seen video evidence of an active gravity engine in real-time—including a visible black hole accretion disk shadow, severe relativistic jet curvature, and the structural dynamics of a massive stellar core experiencing a total loss of angular momentum during a direct vertical infall stream. These ground-truth recordings offer the definitive physical resolution to the ongoing global astrophysics debate regarding the true mass-energy lifecycle of this historic transient anomaly."