{"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":"1600952","name":"Southside Dirt Pit"},"operator":{"type":"operator","id":"L07070","name":"Waste Not Inc"},"controller":{"type":"controller","id":"M05631","name":"Roe E G"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06090","name":"G R Q Inc"},"object":{"type":"mine","id":"1600952","name":"Southside Dirt Pit"},"validFrom":"1979-01-01","validTo":"1982-10-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|L06090|1979-01-01|1982-10-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04868","name":"Penny Robert M"},"object":{"type":"mine","id":"1600952","name":"Southside Dirt Pit"},"validFrom":"1979-01-01","validTo":"1982-10-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|M04868|1979-01-01|1982-10-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04868","name":"Penny Robert M"},"object":{"type":"operator","id":"L06090","name":"G R Q Inc"},"validFrom":"1979-01-01","validTo":"1982-10-25","current":false,"derived":true,"evidenceMineId":"1600952","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|L06090|1979-01-01|M04868|1979-01-01|133101"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06091","name":"K & W Blount Contractors Inc"},"object":{"type":"mine","id":"1600952","name":"Southside Dirt Pit"},"validFrom":"1982-10-26","validTo":"1984-03-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|L06091|1982-10-26|1984-03-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04869","name":"Blount Kevin & Wayne"},"object":{"type":"mine","id":"1600952","name":"Southside Dirt Pit"},"validFrom":"1982-10-26","validTo":"1984-03-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|M04869|1982-10-26|1984-03-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04869","name":"Blount Kevin & Wayne"},"object":{"type":"operator","id":"L06091","name":"K & W Blount Contractors Inc"},"validFrom":"1982-10-26","validTo":"1984-03-26","current":false,"derived":true,"evidenceMineId":"1600952","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|L06091|1982-10-26|M04869|1982-10-26|133102"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07070","name":"Waste Not Inc"},"object":{"type":"mine","id":"1600952","name":"Southside Dirt Pit"},"validFrom":"1984-03-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|L07070|1984-03-27|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05631","name":"Roe E G"},"object":{"type":"mine","id":"1600952","name":"Southside Dirt Pit"},"validFrom":"1984-03-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|M05631|1984-03-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05631","name":"Roe E G"},"object":{"type":"operator","id":"L07070","name":"Waste Not Inc"},"validFrom":"1984-03-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"1600952","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1600952|L07070|1984-03-27|M05631|1984-03-27|135007"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1600952","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"}}