{"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":"2026-10-17T05:35:58.500035+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":"3602231","name":"Ranshaw Silt Plant"},"operator":{"type":"operator","id":"P07566","name":"Churchill Coal Corp"},"controller":{"type":"controller","id":"C04618","name":"Larry  Gordon"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01785","name":"Ranshaw Transportation & Auto Wreckers Company"},"object":{"type":"mine","id":"3602231","name":"Ranshaw Silt Plant"},"validFrom":"1950-01-01","validTo":"1977-12-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|P01785|1950-01-01|1977-12-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01510","name":"Walter  Folger et al"},"object":{"type":"mine","id":"3602231","name":"Ranshaw Silt Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|C01510|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01510","name":"Walter  Folger et al"},"object":{"type":"operator","id":"P01785","name":"Ranshaw Transportation & Auto Wreckers Company"},"validFrom":"1950-01-01","validTo":"1977-12-13","current":false,"derived":true,"evidenceMineId":"3602231","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|P01785|1950-01-01|C01510|1950-01-01|54377"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01510","name":"Leonard  Chapleski et al"},"object":{"type":"operator","id":"P01785","name":"Ranshaw Transportation & Auto Wreckers Company"},"validFrom":"1950-01-01","validTo":"1977-12-13","current":false,"derived":true,"evidenceMineId":"3602231","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|P01785|1950-01-01|C01510|1950-01-01|54378"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07566","name":"Churchill Coal Corp"},"object":{"type":"mine","id":"3602231","name":"Ranshaw Silt Plant"},"validFrom":"1977-12-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|P07566|1977-12-14|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04618","name":"Larry  Gordon"},"object":{"type":"mine","id":"3602231","name":"Ranshaw Silt Plant"},"validFrom":"1977-12-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|C04618|1977-12-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04618","name":"Larry  Gordon"},"object":{"type":"operator","id":"P07566","name":"Churchill Coal Corp"},"validFrom":"1977-12-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"3602231","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602231|P07566|1977-12-14|C04618|1977-12-14|66332"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3602231","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}