{"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":"0405097","name":"Juniper Flats"},"operator":{"type":"operator","id":"L14361","name":"Robertson's"},"controller":{"type":"controller","id":"M11611","name":"RRM Development Corporation; Mitsubishi Corp"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06667","name":"Ronald W Pharris"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"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":"0405097|M06667|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08389","name":"C L Pharris Sand & Gravel Inc"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"1990-06-01","validTo":"1992-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L08389|1990-06-01|1992-01-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06667","name":"Ronald W Pharris"},"object":{"type":"operator","id":"L08389","name":"C L Pharris Sand & Gravel Inc"},"validFrom":"1990-06-01","validTo":"1992-01-17","current":false,"derived":true,"evidenceMineId":"0405097","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L08389|1990-06-01|M06667|1950-01-01|139040"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12924","name":"C L Pharris Sand & Gravel Inc"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"1992-01-18","validTo":"2009-11-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L12924|1992-01-18|2009-11-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"1992-01-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|M09149|1992-01-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"operator","id":"L12924","name":"C L Pharris Sand & Gravel Inc"},"validFrom":"1992-01-18","validTo":"2009-11-12","current":false,"derived":true,"evidenceMineId":"0405097","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L12924|1992-01-18|M09149|1992-01-18|145252"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11611","name":"RRM Development Corporation et al"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"1995-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|M11611|1995-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0106385","name":"Juniper Rock Corporation"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"2009-11-13","validTo":"2023-01-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|0106385|2009-11-13|2023-01-06"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0090113","name":"Primoris Services Corporation"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"2009-11-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|0090113|2009-11-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0090113","name":"Primoris Services Corporation"},"object":{"type":"operator","id":"0106385","name":"Juniper Rock Corporation"},"validFrom":"2009-11-13","validTo":"2023-01-06","current":false,"derived":true,"evidenceMineId":"0405097","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|0106385|2009-11-13|0090113|2009-11-13|14480"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14361","name":"Robertson's"},"object":{"type":"mine","id":"0405097","name":"Juniper Flats"},"validFrom":"2023-01-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L14361|2023-01-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11611","name":"RRM Development Corporation et al"},"object":{"type":"operator","id":"L14361","name":"Robertson's"},"validFrom":"2023-01-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"0405097","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L14361|2023-01-07|M11611|1995-10-01|151879"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11611","name":"Mitsubishi Corp  et al"},"object":{"type":"operator","id":"L14361","name":"Robertson's"},"validFrom":"2023-01-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"0405097","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0405097|L14361|2023-01-07|M11611|1995-10-01|151880"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0405097","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"}}