{"query": "haversine(NYC → London) ≈ 5,570 km", "count": 3, "results": [{"id": "card_v_b40dade5fd6b", "title": "haversine(NYC → London) ≈ 5,570 km", "shelf": "geography", "surface": "secular", "snippet": "Verdict: HOLDS.\n• geography.haversine_distance: haversine(40.7128,-74.006 → 51.5074,-0.1278) = 5570.22 km (matches claim 5570.222179737958)\nSealed and independently re-checkable: https://narrowhighway", "authority_tier": "engine", "source": "Verified by the engine — geography", "readable": false, "generated": false}, {"id": "card_works_haversine", "title": "The great-circle distance from New York to London", "shelf": "the-works", "surface": "secular", "snippet": "Across the curved Earth, the shortest path (the haversine great-circle distance) from New York to London is about 5,570 km — the number behind every flight plan and GPS fix.  Worked & sealed by the en", "authority_tier": "verified", "source": "The Works — worked & sealed", "readable": false, "generated": false}, {"id": "card_src_lang_nyan1303", "title": "Nyanga-li (nyc) — Atlantic-Congo", "shelf": "languages", "surface": "secular", "snippet": "Nyanga-li, a language of the Atlantic-Congo family, spoken in Africa. ISO 639-3: nyc. Glottocode nyan1303.", "authority_tier": "reference", "source": "Glottolog (CC-BY 4.0)", "readable": false, "generated": false}]}