{"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":"4000232","name":"#1"},"operator":{"type":"operator","id":"P03283","name":"Tri-Dean Mining Inc"},"controller":{"type":"controller","id":"C06624","name":"Donald C  Seiber"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00869","name":"H & W Coal Company"},"object":{"type":"mine","id":"4000232","name":"#1"},"validFrom":"1950-01-01","validTo":"1978-08-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P00869|1950-01-01|1978-08-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00744","name":"Harris Johnny"},"object":{"type":"mine","id":"4000232","name":"#1"},"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":"4000232|C00744|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00744","name":"Harris Johnny"},"object":{"type":"operator","id":"P00869","name":"H & W Coal Company"},"validFrom":"1950-01-01","validTo":"1978-08-27","current":false,"derived":true,"evidenceMineId":"4000232","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P00869|1950-01-01|C00744|1950-01-01|49721"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03283","name":"Tri-Dean Mining Inc"},"object":{"type":"mine","id":"4000232","name":"#1"},"validFrom":"1978-08-28","validTo":"1979-04-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P03283|1978-08-28|1979-04-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06624","name":"Donald C  Seiber et al"},"object":{"type":"mine","id":"4000232","name":"#1"},"validFrom":"1978-08-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|C06624|1978-08-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06624","name":"Donald C  Seiber et al"},"object":{"type":"operator","id":"P03283","name":"Tri-Dean Mining Inc"},"validFrom":"1978-08-28","validTo":"1979-04-17","current":false,"derived":true,"evidenceMineId":"4000232","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P03283|1978-08-28|C06624|1978-08-28|72334"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00869","name":"H & W Coal Company"},"object":{"type":"mine","id":"4000232","name":"#1"},"validFrom":"1979-04-18","validTo":"1979-12-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P00869|1979-04-18|1979-12-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00744","name":"Harris Johnny"},"object":{"type":"operator","id":"P00869","name":"H & W Coal Company"},"validFrom":"1979-04-18","validTo":"1979-12-26","current":false,"derived":true,"evidenceMineId":"4000232","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P00869|1979-04-18|C00744|1950-01-01|49722"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03283","name":"Tri-Dean Mining Inc"},"object":{"type":"mine","id":"4000232","name":"#1"},"validFrom":"1979-12-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P03283|1979-12-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06624","name":"Donald C  Seiber et al"},"object":{"type":"operator","id":"P03283","name":"Tri-Dean Mining Inc"},"validFrom":"1979-12-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"4000232","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4000232|P03283|1979-12-27|C06624|1978-08-28|72335"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4000232","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"}}