{"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":"1513034","name":"No 1 Strip"},"operator":{"type":"operator","id":"P12979","name":"Double R Mining"},"controller":{"type":"controller","id":"C09547","name":"Roebuck Neil"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12193","name":"Buckeye Mining Company"},"object":{"type":"mine","id":"1513034","name":"No 1 Strip"},"validFrom":"1981-08-01","validTo":"1982-01-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513034|P12193|1981-08-01|1982-01-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09038","name":"Hocker E R"},"object":{"type":"mine","id":"1513034","name":"No 1 Strip"},"validFrom":"1981-08-01","validTo":"1982-01-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513034|C09038|1981-08-01|1982-01-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09038","name":"Hocker E R"},"object":{"type":"operator","id":"P12193","name":"Buckeye Mining Company"},"validFrom":"1981-08-01","validTo":"1982-01-26","current":false,"derived":true,"evidenceMineId":"1513034","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513034|P12193|1981-08-01|C09038|1981-08-01|78782"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12979","name":"Double R Mining"},"object":{"type":"mine","id":"1513034","name":"No 1 Strip"},"validFrom":"1982-01-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513034|P12979|1982-01-27|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09547","name":"Roebuck Neil"},"object":{"type":"mine","id":"1513034","name":"No 1 Strip"},"validFrom":"1982-01-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513034|C09547|1982-01-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09547","name":"Roebuck Neil"},"object":{"type":"operator","id":"P12979","name":"Double R Mining"},"validFrom":"1982-01-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513034","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513034|P12979|1982-01-27|C09547|1982-01-27|79962"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1513034","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"}}