{"case_id":"s4nh7-2025-01-15-004-s2","agent":"geo","model":"deterministic-cluster-v1","verdict":"Yes","confidence_bps":9100,"tier":0,"reasoning":"Spatio-temporal cluster verified: source_diversity=12, max single-source share=8.3% (<=40%), radius=79m, window spread=660s.","tool_calls":[],"attestation":null}