{"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":"3304395","name":"Plano Road"},"operator":{"type":"operator","id":"L17040","name":"Melvin Stone Company LLC"},"controller":{"type":"controller","id":"0142503","name":"James P  Jurgensen II; Jacqueline J  Alf; Jason R  Jurgensen"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05741","name":"Craig  Beam  et al"},"object":{"type":"mine","id":"3304395","name":"Plano Road"},"validFrom":"1950-01-01","validTo":"1999-08-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|M05741|1950-01-01|1999-08-05"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07210","name":"Melvin Stone Company"},"object":{"type":"mine","id":"3304395","name":"Plano Road"},"validFrom":"1997-04-01","validTo":"1999-08-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L07210|1997-04-01|1999-08-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05741","name":"Craig  Beam  et al"},"object":{"type":"operator","id":"L07210","name":"Melvin Stone Company"},"validFrom":"1997-04-01","validTo":"1999-08-05","current":false,"derived":true,"evidenceMineId":"3304395","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L07210|1997-04-01|M05741|1950-01-01|135287"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17040","name":"Melvin Stone Company LLC"},"object":{"type":"mine","id":"3304395","name":"Plano Road"},"validFrom":"1999-08-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L17040|1999-08-06|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08714","name":"James P  Jurgensen"},"object":{"type":"mine","id":"3304395","name":"Plano Road"},"validFrom":"1999-08-06","validTo":"2018-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|M08714|1999-08-06|2018-04-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08714","name":"James P  Jurgensen"},"object":{"type":"operator","id":"L17040","name":"Melvin Stone Company LLC"},"validFrom":"1999-08-06","validTo":"2018-04-30","current":false,"derived":true,"evidenceMineId":"3304395","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L17040|1999-08-06|M08714|1999-08-06|143944"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0142503","name":"Jason R  Jurgensen et al"},"object":{"type":"mine","id":"3304395","name":"Plano Road"},"validFrom":"2018-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|0142503|2018-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0142503","name":"Jason R  Jurgensen et al"},"object":{"type":"operator","id":"L17040","name":"Melvin Stone Company LLC"},"validFrom":"2018-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304395","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L17040|1999-08-06|0142503|2018-05-01|28824"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0142503","name":"Jacqueline J  Alf et al"},"object":{"type":"operator","id":"L17040","name":"Melvin Stone Company LLC"},"validFrom":"2018-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304395","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L17040|1999-08-06|0142503|2018-05-01|28825"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0142503","name":"James P  Jurgensen II et al"},"object":{"type":"operator","id":"L17040","name":"Melvin Stone Company LLC"},"validFrom":"2018-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304395","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304395|L17040|1999-08-06|0142503|2018-05-01|28826"}}],"coverage":{"historyRecords":5,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3304395","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"}}