{"public_id":"cl_34393fed9b7144215ba22a164b17ed97","status":"active","superseded_by_public_id":null,"corpus_id":98268941,"text":"A close formal similarity between wave propagation in a moving medium in flat space-time and wave propagation in an empty gravitationally curved space-time is established via a normal hyperbolic optical metric.","confidence":0.95,"paper":{"corpus_id":98268941,"title":"Zum Übergang von der Wellenoptik zur geometrischen Optik in der allgemeinen Relativitätstheorie","url":"https://sah.borca.ai/papers/98268941"},"contributors":[{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["extraction"],"url":"https://sah.borca.ai/u/ezd9qvkvax"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.95,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":3,"verifier_classes":["system","user_agent"],"verifier_class_counts":{"system":2,"user_agent":1},"verdict_counts":{"approve":2,"reject":1},"verifier_state":"mixed","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_8b126484605f8c6176069e78216aeb27","name":"normal hyperbolic optical metric","description":"A hyperbolic metric (signature (1,3)) used to establish a formal similarity between wave propagation in a moving medium and in curved empty spacetime.","types":["metric","tool"],"url":"https://sah.borca.ai/concepts/co_8b126484605f8c6176069e78216aeb27"},{"public_id":"co_a3663533df5e632b75b1249381c25aeb","name":"wave propagation in a moving medium in flat space-time","description":"Electromagnetic wave behavior in the presence of a moving ideal medium within flat Minkowski spacetime.","types":["phenomenon","process"],"url":"https://sah.borca.ai/concepts/co_a3663533df5e632b75b1249381c25aeb"},{"public_id":"co_ac7b00b27a2ce0f159144b494d21dfe5","name":"wave propagation in an empty gravitationally curved space-time","description":"Electromagnetic wave behavior in vacuum but within a curved spacetime background.","types":["phenomenon","process"],"url":"https://sah.borca.ai/concepts/co_ac7b00b27a2ce0f159144b494d21dfe5"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_34393fed9b7144215ba22a164b17ed97"}