{"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":"4607669","name":"Jcb #1"},"operator":{"type":"operator","id":"P21338","name":"Stone Coal Company Inc"},"controller":{"type":"controller","id":"C11955","name":"Radabaugh Austin Blaine"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11955","name":"Radabaugh Austin Blaine Et Al"},"object":{"type":"mine","id":"4607669","name":"Jcb #1"},"validFrom":"1988-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607669|C11955|1988-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20162","name":"Jcb Mining Inc"},"object":{"type":"mine","id":"4607669","name":"Jcb #1"},"validFrom":"1989-03-01","validTo":"1992-07-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607669|P20162|1989-03-01|1992-07-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01845","name":"Loyal G  Forman Jr"},"object":{"type":"mine","id":"4607669","name":"Jcb #1"},"validFrom":"1989-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607669|C01845|1989-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01845","name":"Loyal G  Forman Jr"},"object":{"type":"operator","id":"P20162","name":"Jcb Mining Inc"},"validFrom":"1989-03-01","validTo":"1992-07-28","current":false,"derived":true,"evidenceMineId":"4607669","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607669|P20162|1989-03-01|C01845|1989-03-01|56403"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21338","name":"Stone Coal Company Inc"},"object":{"type":"mine","id":"4607669","name":"Jcb #1"},"validFrom":"1992-07-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607669|P21338|1992-07-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11955","name":"Radabaugh Austin Blaine Et Al"},"object":{"type":"operator","id":"P21338","name":"Stone Coal Company Inc"},"validFrom":"1992-07-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607669","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607669|P21338|1992-07-29|C11955|1988-10-01|85782"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4607669","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"}}