{"public_id":"co_499cca1b54bd7a41ab0366c12eed1939","status":"active","merged_into_public_id":null,"resolved_public_id":"co_499cca1b54bd7a41ab0366c12eed1939","name":"dating standards","description":"Reference materials used to calibrate or anchor radiometric age measurements.","aliases":["neutron-fluence monitors"],"types":["standard"],"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"concept","status":"active","confidence":null,"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","concept.status"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"papers":[{"corpus_id":128739749,"title":"Intercalibration of astronomical and radioisotopic time","citation_count":283,"url":"https://sah.borca.ai/papers/128739749"}],"claims":[],"related_concepts":[],"resolved_url":"https://sah.borca.ai/concepts/co_499cca1b54bd7a41ab0366c12eed1939","url":"https://sah.borca.ai/concepts/co_499cca1b54bd7a41ab0366c12eed1939"}