{"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":"4405153","name":"No 1 Mine"},"operator":{"type":"operator","id":"P17156","name":"Sandy Lane Inc"},"controller":{"type":"controller","id":"C08919","name":"James Wayne  Estep"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09295","name":"Hay Coal Company Inc"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1979-04-01","validTo":"1980-03-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P09295|1979-04-01|1980-03-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07328","name":"Hay James E Jr"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1979-04-01","validTo":"1980-03-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|C07328|1979-04-01|1980-03-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07328","name":"Hay James E Jr"},"object":{"type":"operator","id":"P09295","name":"Hay Coal Company Inc"},"validFrom":"1979-04-01","validTo":"1980-03-13","current":false,"derived":true,"evidenceMineId":"4405153","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P09295|1979-04-01|C07328|1979-04-01|74361"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10170","name":"Sandy Lane Inc"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1980-03-14","validTo":"1981-01-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P10170|1980-03-14|1981-01-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07309","name":"Coleman Gilbert A"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1980-03-14","validTo":"1981-01-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|C07309|1980-03-14|1981-01-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07309","name":"Coleman Gilbert A"},"object":{"type":"operator","id":"P10170","name":"Sandy Lane Inc"},"validFrom":"1980-03-14","validTo":"1981-01-27","current":false,"derived":true,"evidenceMineId":"4405153","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P10170|1980-03-14|C07309|1980-03-14|74322"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11428","name":"Sandy Lane Inc"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1981-01-28","validTo":"1985-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P11428|1981-01-28|1985-10-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08576","name":"Deel Paul R"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1981-01-28","validTo":"1985-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|C08576|1981-01-28|1985-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08576","name":"Deel Paul R"},"object":{"type":"operator","id":"P11428","name":"Sandy Lane Inc"},"validFrom":"1981-01-28","validTo":"1985-10-31","current":false,"derived":true,"evidenceMineId":"4405153","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P11428|1981-01-28|C08576|1981-01-28|77674"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17156","name":"Sandy Lane Inc"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1985-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P17156|1985-11-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08919","name":"James Wayne  Estep"},"object":{"type":"mine","id":"4405153","name":"No 1 Mine"},"validFrom":"1985-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|C08919|1985-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08919","name":"James Wayne  Estep"},"object":{"type":"operator","id":"P17156","name":"Sandy Lane Inc"},"validFrom":"1985-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4405153","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405153|P17156|1985-11-01|C08919|1985-11-01|78436"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4405153","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"}}