{"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":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"operator":{"type":"operator","id":"0093625","name":"CEMEX Construction Materials South LLC"},"controller":{"type":"controller","id":"M09149","name":"Cemex S A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00360","name":"Peter Kiewit Sons' Inc"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"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":"0202849|M00360|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11411","name":"Meadow Valley Corp"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"1996-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|M11411|1996-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14991","name":"Meadow Valley Contractors Incorporated"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"1999-10-01","validTo":"2002-05-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|L14991|1999-10-01|2002-05-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11411","name":"Meadow Valley Corp"},"object":{"type":"operator","id":"L14991","name":"Meadow Valley Contractors Incorporated"},"validFrom":"1999-10-01","validTo":"2002-05-12","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|L14991|1999-10-01|M11411|1996-07-01|151350"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13554","name":"UNITED METRO MATERIALS, INC."},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2002-05-13","validTo":"2002-09-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|L13554|2002-05-13|2002-09-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00360","name":"Peter Kiewit Sons' Inc"},"object":{"type":"operator","id":"L13554","name":"UNITED METRO MATERIALS, INC."},"validFrom":"2002-05-13","validTo":"2002-09-25","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|L13554|2002-05-13|M00360|1950-01-01|110101"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051059","name":"Rinker Materials  Western Inc."},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2002-09-26","validTo":"2004-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0051059|2002-09-26|2004-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2002-09-26","validTo":"2003-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|M08942|2002-09-26|2003-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"operator","id":"0051059","name":"Rinker Materials  Western Inc."},"validFrom":"2002-09-26","validTo":"2003-03-31","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0051059|2002-09-26|M08942|2002-09-26|144654"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2003-04-01","validTo":"2007-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0042039|2003-04-01|2007-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"operator","id":"0051059","name":"Rinker Materials  Western Inc."},"validFrom":"2003-04-01","validTo":"2004-07-31","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0051059|2002-09-26|0042039|2003-04-01|3480"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0054139","name":"RINKER MATERIALS"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2004-08-01","validTo":"2008-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0054139|2004-08-01|2008-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2004-08-01","validTo":"2007-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0042039|2004-08-01|2007-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"operator","id":"0054139","name":"RINKER MATERIALS"},"validFrom":"2004-08-01","validTo":"2007-07-09","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0054139|2004-08-01|0042039|2004-08-01|3611"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2007-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|M09149|2007-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"operator","id":"0051059","name":"Rinker Materials  Western Inc."},"validFrom":"2007-07-10","validTo":"2004-07-31","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0051059|2002-09-26|M09149|2007-07-10|145448"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"operator","id":"0054139","name":"RINKER MATERIALS"},"validFrom":"2007-07-10","validTo":"2008-07-31","current":false,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0054139|2004-08-01|M09149|2007-07-10|145449"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0093625","name":"CEMEX Construction Materials South LLC"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2008-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0093625|2008-08-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"mine","id":"0202849","name":"CEMEX-PRESCOTT/FAIN"},"validFrom":"2008-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|M09149|2008-08-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"operator","id":"0093625","name":"CEMEX Construction Materials South LLC"},"validFrom":"2008-08-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202849","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202849|0093625|2008-08-01|M09149|2008-08-01|145594"}}],"coverage":{"historyRecords":8,"edgeCount":20,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0202849","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"}}