{"public_id":"cl_ef30c609f26f0f6223ee70497c5ed9d7","status":"active","superseded_by_public_id":null,"corpus_id":229152601,"text":"Double field theory can be used to construct action principles for a variety of non-Riemannian gravitational theories.","confidence":0.97,"paper":{"corpus_id":229152601,"title":"Non-Riemannian gravity actions from double field theory","url":"https://sah.borca.ai/papers/229152601"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.97,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","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_630f63a17c09296763b84615fdec4e5b","name":"action principles","description":"Variational formulations from which equations of motion are derived.","types":["method"],"url":"https://sah.borca.ai/concepts/co_630f63a17c09296763b84615fdec4e5b"},{"public_id":"co_94fe11012d390d800e26a72bbc4c6d3c","name":"non-Riemannian gravitational theories","description":"Gravitational theories formulated outside the usual Riemannian geometric setting.","types":["theoretical framework"],"url":"https://sah.borca.ai/concepts/co_94fe11012d390d800e26a72bbc4c6d3c"},{"public_id":"co_97eb29abcc129249af2be5cf553ba649","name":"double field theory","description":"A field-theoretic framework that doubles coordinates to make T-duality manifest.","types":["theoretical framework"],"url":"https://sah.borca.ai/concepts/co_97eb29abcc129249af2be5cf553ba649"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_ef30c609f26f0f6223ee70497c5ed9d7"}