{"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":"1516955","name":"No 1 Surface"},"operator":{"type":"operator","id":"P22371","name":"Anne Brooke Coal Corp"},"controller":{"type":"controller","id":"C10010","name":"Breeding Jerry"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21120","name":"Sheena Coal Corp"},"object":{"type":"mine","id":"1516955","name":"No 1 Surface"},"validFrom":"1990-09-01","validTo":"1992-04-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|P21120|1990-09-01|1992-04-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10010","name":"Breeding Jerry"},"object":{"type":"mine","id":"1516955","name":"No 1 Surface"},"validFrom":"1990-09-01","validTo":"1992-04-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|C10010|1990-09-01|1992-04-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10010","name":"Breeding Jerry"},"object":{"type":"operator","id":"P21120","name":"Sheena Coal Corp"},"validFrom":"1990-09-01","validTo":"1992-04-08","current":false,"derived":true,"evidenceMineId":"1516955","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|P21120|1990-09-01|C10010|1990-09-01|81093"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21957","name":"Crc Enterprises Inc"},"object":{"type":"mine","id":"1516955","name":"No 1 Surface"},"validFrom":"1992-04-09","validTo":"1993-03-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|P21957|1992-04-09|1993-03-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14647","name":"Chaney George R"},"object":{"type":"mine","id":"1516955","name":"No 1 Surface"},"validFrom":"1992-04-09","validTo":"1993-03-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|C14647|1992-04-09|1993-03-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14647","name":"Chaney George R"},"object":{"type":"operator","id":"P21957","name":"Crc Enterprises Inc"},"validFrom":"1992-04-09","validTo":"1993-03-29","current":false,"derived":true,"evidenceMineId":"1516955","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|P21957|1992-04-09|C14647|1992-04-09|93526"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22371","name":"Anne Brooke Coal Corp"},"object":{"type":"mine","id":"1516955","name":"No 1 Surface"},"validFrom":"1993-03-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|P22371|1993-03-30|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10010","name":"Breeding Jerry"},"object":{"type":"mine","id":"1516955","name":"No 1 Surface"},"validFrom":"1993-03-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|C10010|1993-03-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10010","name":"Breeding Jerry"},"object":{"type":"operator","id":"P22371","name":"Anne Brooke Coal Corp"},"validFrom":"1993-03-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"1516955","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516955|P22371|1993-03-30|C10010|1993-03-30|81094"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1516955","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"}}