{"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":"3200847","name":"Fisher Pit"},"operator":{"type":"operator","id":"0104325","name":"L & M Enterprises Inc"},"controller":{"type":"controller","id":"0083855","name":"Lois  Dettling"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0099406","name":"Watford City Ready Mix"},"object":{"type":"mine","id":"3200847","name":"Fisher Pit"},"validFrom":"2009-04-07","validTo":"2009-09-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200847|0099406|2009-04-07|2009-09-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0083855","name":"Lois  Dettling"},"object":{"type":"mine","id":"3200847","name":"Fisher Pit"},"validFrom":"2009-04-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200847|0083855|2009-04-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0083855","name":"Lois  Dettling"},"object":{"type":"operator","id":"0099406","name":"Watford City Ready Mix"},"validFrom":"2009-04-07","validTo":"2009-09-15","current":false,"derived":true,"evidenceMineId":"3200847","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200847|0099406|2009-04-07|0083855|2009-04-07|13275"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0104325","name":"L & M Enterprises Inc"},"object":{"type":"mine","id":"3200847","name":"Fisher Pit"},"validFrom":"2009-09-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200847|0104325|2009-09-16|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0083855","name":"Lois  Dettling"},"object":{"type":"mine","id":"3200847","name":"Fisher Pit"},"validFrom":"2009-09-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200847|0083855|2009-09-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0083855","name":"Lois  Dettling"},"object":{"type":"operator","id":"0104325","name":"L & M Enterprises Inc"},"validFrom":"2009-09-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"3200847","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200847|0104325|2009-09-16|0083855|2009-09-16|13276"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3200847","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"}}