{"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":"4605825","name":"No 1"},"operator":{"type":"operator","id":"P20726","name":"Jacob Coal Company Inc"},"controller":{"type":"controller","id":"C14067","name":"Mc Farland Joseph"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12534","name":"Le Sage Mining Company Inc"},"object":{"type":"mine","id":"4605825","name":"No 1"},"validFrom":"1981-08-01","validTo":"1987-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|P12534|1981-08-01|1987-04-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07840","name":"Saunders James W"},"object":{"type":"mine","id":"4605825","name":"No 1"},"validFrom":"1981-08-01","validTo":"1987-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|C07840|1981-08-01|1987-04-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07840","name":"Saunders James W"},"object":{"type":"operator","id":"P12534","name":"Le Sage Mining Company Inc"},"validFrom":"1981-08-01","validTo":"1987-04-01","current":false,"derived":true,"evidenceMineId":"4605825","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|P12534|1981-08-01|C07840|1981-08-01|75828"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18848","name":"May Branch Coal Company Inc"},"object":{"type":"mine","id":"4605825","name":"No 1"},"validFrom":"1987-04-02","validTo":"1989-09-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|P18848|1987-04-02|1989-09-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13062","name":"Osborne F D"},"object":{"type":"mine","id":"4605825","name":"No 1"},"validFrom":"1987-04-02","validTo":"1989-09-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|C13062|1987-04-02|1989-09-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13062","name":"Osborne F D"},"object":{"type":"operator","id":"P18848","name":"May Branch Coal Company Inc"},"validFrom":"1987-04-02","validTo":"1989-09-27","current":false,"derived":true,"evidenceMineId":"4605825","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|P18848|1987-04-02|C13062|1987-04-02|88533"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20726","name":"Jacob Coal Company Inc"},"object":{"type":"mine","id":"4605825","name":"No 1"},"validFrom":"1989-09-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|P20726|1989-09-28|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14067","name":"Mc Farland Joseph"},"object":{"type":"mine","id":"4605825","name":"No 1"},"validFrom":"1989-09-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|C14067|1989-09-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14067","name":"Mc Farland Joseph"},"object":{"type":"operator","id":"P20726","name":"Jacob Coal Company Inc"},"validFrom":"1989-09-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"4605825","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605825|P20726|1989-09-28|C14067|1989-09-28|91925"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4605825","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"}}