{"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":"4405146","name":"No 1"},"operator":{"type":"operator","id":"P10226","name":"Empire Mining Inc"},"controller":{"type":"controller","id":"C07838","name":"Kidd James E"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04414","name":"Whited Leon"},"object":{"type":"mine","id":"4405146","name":"No 1"},"validFrom":"1977-05-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|C04414|1977-05-12|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P05331","name":"Prospect Coal Company"},"object":{"type":"mine","id":"4405146","name":"No 1"},"validFrom":"1978-11-01","validTo":"1979-01-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|P05331|1978-11-01|1979-01-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04414","name":"Whited Leon"},"object":{"type":"operator","id":"P05331","name":"Prospect Coal Company"},"validFrom":"1978-11-01","validTo":"1979-01-04","current":false,"derived":true,"evidenceMineId":"4405146","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|P05331|1978-11-01|C04414|1977-05-12|65946"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09121","name":"Empire Mining Inc"},"object":{"type":"mine","id":"4405146","name":"No 1"},"validFrom":"1979-01-05","validTo":"1979-06-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|P09121|1979-01-05|1979-06-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07210","name":"Harris Sammie E"},"object":{"type":"mine","id":"4405146","name":"No 1"},"validFrom":"1979-01-05","validTo":"1979-06-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|C07210|1979-01-05|1979-06-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07210","name":"Harris Sammie E"},"object":{"type":"operator","id":"P09121","name":"Empire Mining Inc"},"validFrom":"1979-01-05","validTo":"1979-06-20","current":false,"derived":true,"evidenceMineId":"4405146","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|P09121|1979-01-05|C07210|1979-01-05|74124"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10226","name":"Empire Mining Inc"},"object":{"type":"mine","id":"4405146","name":"No 1"},"validFrom":"1979-06-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|P10226|1979-06-21|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07838","name":"Kidd James E"},"object":{"type":"mine","id":"4405146","name":"No 1"},"validFrom":"1979-06-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|C07838|1979-06-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07838","name":"Kidd James E"},"object":{"type":"operator","id":"P10226","name":"Empire Mining Inc"},"validFrom":"1979-06-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"4405146","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405146|P10226|1979-06-21|C07838|1979-06-21|75822"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4405146","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"}}