{"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":"1515233","name":"#1 Mine"},"operator":{"type":"operator","id":"P17051","name":"G & L Coal Company"},"controller":{"type":"controller","id":"C09919","name":"Lawson John & Clarence"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16772","name":"Remote Coal"},"object":{"type":"mine","id":"1515233","name":"#1 Mine"},"validFrom":"1985-05-01","validTo":"1985-08-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515233|P16772|1985-05-01|1985-08-22"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11879","name":"Fulton William E & Jack Moore Et Al"},"object":{"type":"mine","id":"1515233","name":"#1 Mine"},"validFrom":"1985-05-01","validTo":"1985-08-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515233|C11879|1985-05-01|1985-08-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11879","name":"Fulton William E & Jack Moore Et Al"},"object":{"type":"operator","id":"P16772","name":"Remote Coal"},"validFrom":"1985-05-01","validTo":"1985-08-22","current":false,"derived":true,"evidenceMineId":"1515233","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515233|P16772|1985-05-01|C11879|1985-05-01|85606"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17051","name":"G & L Coal Company"},"object":{"type":"mine","id":"1515233","name":"#1 Mine"},"validFrom":"1985-08-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515233|P17051|1985-08-23|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09919","name":"Lawson John & Clarence Et Al"},"object":{"type":"mine","id":"1515233","name":"#1 Mine"},"validFrom":"1985-08-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515233|C09919|1985-08-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09919","name":"Lawson John & Clarence Et Al"},"object":{"type":"operator","id":"P17051","name":"G & L Coal Company"},"validFrom":"1985-08-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"1515233","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515233|P17051|1985-08-23|C09919|1985-08-23|80895"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1515233","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"}}