{"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":"3606102","name":"4 Foot Slope"},"operator":{"type":"operator","id":"P08493","name":"J A S Partnership"},"controller":{"type":"controller","id":"C06770","name":"Platko John"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01109","name":"Pewor Walter"},"object":{"type":"mine","id":"3606102","name":"4 Foot Slope"},"validFrom":"1973-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606102|C01109|1973-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01308","name":"Pewor Coal Co"},"object":{"type":"mine","id":"3606102","name":"4 Foot Slope"},"validFrom":"1976-05-28","validTo":"1978-07-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606102|P01308|1976-05-28|1978-07-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01109","name":"Pewor Walter"},"object":{"type":"operator","id":"P01308","name":"Pewor Coal Co"},"validFrom":"1976-05-28","validTo":"1978-07-30","current":false,"derived":true,"evidenceMineId":"3606102","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606102|P01308|1976-05-28|C01109|1973-01-01|52383"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08493","name":"J A S Partnership"},"object":{"type":"mine","id":"3606102","name":"4 Foot Slope"},"validFrom":"1978-07-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606102|P08493|1978-07-31|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06770","name":"Platko John Et Al"},"object":{"type":"mine","id":"3606102","name":"4 Foot Slope"},"validFrom":"1978-07-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606102|C06770|1978-07-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06770","name":"Platko John Et Al"},"object":{"type":"operator","id":"P08493","name":"J A S Partnership"},"validFrom":"1978-07-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"3606102","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606102|P08493|1978-07-31|C06770|1978-07-31|72901"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3606102","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"}}