{"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":"2026-10-17T05:35:58.500035+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":"0200001","name":"Clarkdale Facility"},"operator":{"type":"operator","id":"L09362","name":"Phoenix Cement"},"controller":{"type":"controller","id":"M06003","name":"Salt River Pima-Maricopa Indian Community"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00158","name":"Phoenix Cement Company"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"1950-01-01","validTo":"1979-12-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L00158|1950-01-01|1979-12-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00140","name":"Amcord Inc"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"1950-01-01","validTo":"1979-12-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|M00140|1950-01-01|1979-12-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00140","name":"Amcord Inc"},"object":{"type":"operator","id":"L00158","name":"Phoenix Cement Company"},"validFrom":"1950-01-01","validTo":"1979-12-14","current":false,"derived":true,"evidenceMineId":"0200001","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L00158|1950-01-01|M00140|1950-01-01|105074"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"1979-12-07","validTo":"1987-05-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|M00521|1979-12-07|1987-05-03"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03738","name":"Phoenix Cement Company"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"1979-12-15","validTo":"1987-05-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L03738|1979-12-15|1987-05-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L03738","name":"Phoenix Cement Company"},"validFrom":"1979-12-15","validTo":"1987-05-03","current":false,"derived":true,"evidenceMineId":"0200001","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L03738|1979-12-15|M00521|1979-12-07|112104"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09362","name":"Phoenix Cement"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"1987-05-04","validTo":"2008-03-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L09362|1987-05-04|2008-03-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06003","name":"Salt River Pima-Maricopa Indian Community"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"1987-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|M06003|1987-05-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06003","name":"Salt River Pima-Maricopa Indian Community"},"object":{"type":"operator","id":"L09362","name":"Phoenix Cement"},"validFrom":"1987-05-04","validTo":"2008-03-19","current":false,"derived":true,"evidenceMineId":"0200001","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L09362|1987-05-04|M06003|1987-05-04|135977"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0088284","name":"Salt River Materials Group"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"2008-03-20","validTo":"2009-09-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|0088284|2008-03-20|2009-09-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06003","name":"Salt River Pima-Maricopa Indian Community"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"2008-03-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|M06003|2008-03-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06003","name":"Salt River Pima-Maricopa Indian Community"},"object":{"type":"operator","id":"0088284","name":"Salt River Materials Group"},"validFrom":"2008-03-20","validTo":"2009-09-23","current":false,"derived":true,"evidenceMineId":"0200001","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|0088284|2008-03-20|M06003|2008-03-20|135982"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09362","name":"Phoenix Cement"},"object":{"type":"mine","id":"0200001","name":"Clarkdale Facility"},"validFrom":"2009-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L09362|2009-09-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06003","name":"Salt River Pima-Maricopa Indian Community"},"object":{"type":"operator","id":"L09362","name":"Phoenix Cement"},"validFrom":"2009-09-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"0200001","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0200001|L09362|2009-09-24|M06003|1987-05-04|135978"}}],"coverage":{"historyRecords":5,"edgeCount":14,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0200001","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}