{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"0103076","name":"O'Neal Quarry"},"operator":{"type":"operator","id":"L16197","name":"Martin Marietta Materials, Inc."},"controller":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"0103076","name":"O'Neal Quarry"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|M00174|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10624","name":"U S Aggregate Inc"},"object":{"type":"mine","id":"0103076","name":"O'Neal Quarry"},"validFrom":"1994-07-13","validTo":"2002-05-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|M10624|1994-07-13|2002-05-28"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13901","name":"SRM Aggregates,  Inc."},"object":{"type":"mine","id":"0103076","name":"O'Neal Quarry"},"validFrom":"1996-05-01","validTo":"2002-05-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|L13901|1996-05-01|2002-05-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10624","name":"U S Aggregate Inc"},"object":{"type":"operator","id":"L13901","name":"SRM Aggregates,  Inc."},"validFrom":"1996-05-01","validTo":"2002-05-28","current":false,"derived":true,"evidenceMineId":"0103076","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|L13901|1996-05-01|M10624|1994-07-13|149664"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16197","name":"Martin Marietta Materials, Inc."},"object":{"type":"mine","id":"0103076","name":"O'Neal Quarry"},"validFrom":"2002-05-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|L16197|2002-05-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L16197","name":"Martin Marietta Materials, Inc."},"validFrom":"2002-05-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"0103076","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|L16197|2002-05-29|M00174|1950-01-01|105601"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"0103076","name":"O'Neal Quarry"},"validFrom":"2002-05-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|M06183|2002-05-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L13901","name":"SRM Aggregates,  Inc."},"validFrom":"2002-05-29","validTo":"2002-05-28","current":false,"derived":true,"evidenceMineId":"0103076","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103076|L13901|1996-05-01|M06183|2002-05-29|136966"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0103076","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}