{"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":"4605658","name":"Hewett Fork #5"},"operator":{"type":"operator","id":"P10833","name":"Hilea Coal Company"},"controller":{"type":"controller","id":"C00120","name":"Fry Andrew J"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02999","name":"Valley Industries Inc"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1976-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|C02999|1976-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03634","name":"S S Joe Burford Inc"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1977-10-01","validTo":"1978-05-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P03634|1977-10-01|1978-05-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02999","name":"Valley Industries Inc"},"object":{"type":"operator","id":"P03634","name":"S S Joe Burford Inc"},"validFrom":"1977-10-01","validTo":"1978-05-16","current":false,"derived":true,"evidenceMineId":"4605658","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P03634|1977-10-01|C02999|1976-12-01|61578"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08072","name":"Pocahontas Second Corp"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1978-05-17","validTo":"1979-08-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P08072|1978-05-17|1979-08-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06506","name":"Kimball William G"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1978-05-17","validTo":"1979-08-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|C06506|1978-05-17|1979-08-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06506","name":"Kimball William G"},"object":{"type":"operator","id":"P08072","name":"Pocahontas Second Corp"},"validFrom":"1978-05-17","validTo":"1979-08-29","current":false,"derived":true,"evidenceMineId":"4605658","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P08072|1978-05-17|C06506|1978-05-17|72005"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10832","name":"Do Mi Coal Inc"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1979-08-30","validTo":"1980-05-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P10832|1979-08-30|1980-05-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08208","name":"Fry E B Et Al"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1979-08-30","validTo":"1980-05-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|C08208|1979-08-30|1980-05-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08208","name":"Fry E B Et Al"},"object":{"type":"operator","id":"P10832","name":"Do Mi Coal Inc"},"validFrom":"1979-08-30","validTo":"1980-05-21","current":false,"derived":true,"evidenceMineId":"4605658","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P10832|1979-08-30|C08208|1979-08-30|76739"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10833","name":"Hilea Coal Company"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1980-05-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P10833|1980-05-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00120","name":"Fry Andrew J"},"object":{"type":"mine","id":"4605658","name":"Hewett Fork #5"},"validFrom":"1980-05-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|C00120|1980-05-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00120","name":"Fry Andrew J"},"object":{"type":"operator","id":"P10833","name":"Hilea Coal Company"},"validFrom":"1980-05-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4605658","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605658|P10833|1980-05-22|C00120|1980-05-22|44329"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4605658","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"}}