{"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":"2901270","name":"Lime Quarry and Lime Plant"},"operator":{"type":"operator","id":"L09038","name":"Freeport-McMoRan Chino Mines Company"},"controller":{"type":"controller","id":"0067299","name":"Freeport-McMoRan Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03098","name":"Kennecott Minerals Company"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1950-01-01","validTo":"1981-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L03098|1950-01-01|1981-03-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00434","name":"Kennecott Copper Corp"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1950-01-01","validTo":"1981-06-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|M00434|1950-01-01|1981-06-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00434","name":"Kennecott Copper Corp"},"object":{"type":"operator","id":"L03098","name":"Kennecott Minerals Company"},"validFrom":"1950-01-01","validTo":"1981-03-01","current":false,"derived":true,"evidenceMineId":"2901270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L03098|1950-01-01|M00434|1950-01-01|110898"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06713","name":"Monty P  Nichols"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|M06713|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05131","name":"Chino Mines Company"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1981-03-02","validTo":"1988-03-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L05131|1981-03-02|1988-03-22"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04143","name":"Kennecott Corp & Mitsubishi Corp"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1981-03-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|M04143|1981-03-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04143","name":"Kennecott Corp & Mitsubishi Corp"},"object":{"type":"operator","id":"L05131","name":"Chino Mines Company"},"validFrom":"1981-03-02","validTo":"1988-03-22","current":false,"derived":true,"evidenceMineId":"2901270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L05131|1981-03-02|M04143|1981-03-02|131224"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07132","name":"Mitsubishi Corp & Phelps Dodge Corp"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1987-01-01","validTo":"2003-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|M07132|1987-01-01|2003-12-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10189","name":"Triple Nichol Inc"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"1988-03-23","validTo":"2010-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L10189|1988-03-23|2010-05-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06713","name":"Monty P  Nichols"},"object":{"type":"operator","id":"L10189","name":"Triple Nichol Inc"},"validFrom":"1988-03-23","validTo":"2010-05-31","current":false,"derived":true,"evidenceMineId":"2901270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L10189|1988-03-23|M06713|1950-01-01|139227"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00136","name":"Phelps Dodge Corp"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"2004-01-01","validTo":"2007-03-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|M00136|2004-01-01|2007-03-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0067299","name":"Freeport-McMoRan Inc"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"2007-03-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|0067299|2007-03-19|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09038","name":"Freeport-McMoRan Chino Mines Company"},"object":{"type":"mine","id":"2901270","name":"Lime Quarry and Lime Plant"},"validFrom":"2010-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L09038|2010-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0067299","name":"Freeport-McMoRan Inc"},"object":{"type":"operator","id":"L09038","name":"Freeport-McMoRan Chino Mines Company"},"validFrom":"2010-06-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2901270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L09038|2010-06-01|0067299|2007-03-19|9423"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00136","name":"Phelps Dodge Corp"},"object":{"type":"operator","id":"L09038","name":"Freeport-McMoRan Chino Mines Company"},"validFrom":"2010-06-01","validTo":"2007-03-18","current":false,"derived":true,"evidenceMineId":"2901270","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L09038|2010-06-01|M00136|2004-01-01|105046"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07132","name":"Mitsubishi Corp & Phelps Dodge Corp"},"object":{"type":"operator","id":"L09038","name":"Freeport-McMoRan Chino Mines Company"},"validFrom":"2010-06-01","validTo":"2003-12-31","current":false,"derived":true,"evidenceMineId":"2901270","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2901270|L09038|2010-06-01|M07132|1987-01-01|140207"}}],"coverage":{"historyRecords":6,"edgeCount":16,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2901270","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"}}