{"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":"1510407","name":"Black Oak #3 Deep Mine"},"operator":{"type":"operator","id":"P11348","name":"Golden Oak Mining Company Inc"},"controller":{"type":"controller","id":"C05134","name":"Reading & Bates Corp"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06331","name":"P & C Mining Company Inc"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1977-05-01","validTo":"1977-08-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P06331|1977-05-01|1977-08-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05271","name":"Prater Feely"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1977-05-01","validTo":"1977-08-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|C05271|1977-05-01|1977-08-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05271","name":"Prater Feely"},"object":{"type":"operator","id":"P06331","name":"P & C Mining Company Inc"},"validFrom":"1977-05-01","validTo":"1977-08-29","current":false,"derived":true,"evidenceMineId":"1510407","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P06331|1977-05-01|C05271|1977-05-01|68076"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06699","name":"P & C Mining Company Inc"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1977-08-30","validTo":"1978-04-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P06699|1977-08-30|1978-04-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05561","name":"Banks John W"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1977-08-30","validTo":"1978-04-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|C05561|1977-08-30|1978-04-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05561","name":"Banks John W"},"object":{"type":"operator","id":"P06699","name":"P & C Mining Company Inc"},"validFrom":"1977-08-30","validTo":"1978-04-13","current":false,"derived":true,"evidenceMineId":"1510407","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P06699|1977-08-30|C05561|1977-08-30|69183"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08074","name":"P & C Mining Company Inc"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1978-04-14","validTo":"1983-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P08074|1978-04-14|1983-09-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00619","name":"Baker Renfrow"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1978-04-14","validTo":"1983-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|C00619|1978-04-14|1983-09-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00619","name":"Baker Renfrow"},"object":{"type":"operator","id":"P08074","name":"P & C Mining Company Inc"},"validFrom":"1978-04-14","validTo":"1983-09-20","current":false,"derived":true,"evidenceMineId":"1510407","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P08074|1978-04-14|C00619|1978-04-14|48626"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05134","name":"Reading & Bates Corp"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1981-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|C05134|1981-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11348","name":"Golden Oak Mining Company Inc"},"object":{"type":"mine","id":"1510407","name":"Black Oak #3 Deep Mine"},"validFrom":"1983-09-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P11348|1983-09-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05134","name":"Reading & Bates Corp"},"object":{"type":"operator","id":"P11348","name":"Golden Oak Mining Company Inc"},"validFrom":"1983-09-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"1510407","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1510407|P11348|1983-09-21|C05134|1981-01-01|67632"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1510407","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"}}