{"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":"3609539","name":"Shirvan Quarry"},"operator":{"type":"operator","id":"0171433","name":"B C Quarries LLC"},"controller":{"type":"controller","id":"0088013","name":"David L  Karp"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0082446","name":"Ely's Stone"},"object":{"type":"mine","id":"3609539","name":"Shirvan Quarry"},"validFrom":"2007-07-10","validTo":"2010-03-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0082446|2007-07-10|2010-03-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0069575","name":"Michael M  Ely Sr"},"object":{"type":"mine","id":"3609539","name":"Shirvan Quarry"},"validFrom":"2007-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0069575|2007-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0069575","name":"Michael M  Ely Sr"},"object":{"type":"operator","id":"0082446","name":"Ely's Stone"},"validFrom":"2007-07-10","validTo":"2010-03-30","current":false,"derived":true,"evidenceMineId":"3609539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0082446|2007-07-10|0069575|2007-07-10|9911"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0109345","name":"Jackson Stone"},"object":{"type":"mine","id":"3609539","name":"Shirvan Quarry"},"validFrom":"2010-03-31","validTo":"2020-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0109345|2010-03-31|2020-04-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0092475","name":"Timothy J  Jackson"},"object":{"type":"mine","id":"3609539","name":"Shirvan Quarry"},"validFrom":"2010-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0092475|2010-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0092475","name":"Timothy J  Jackson"},"object":{"type":"operator","id":"0109345","name":"Jackson Stone"},"validFrom":"2010-03-31","validTo":"2020-04-01","current":false,"derived":true,"evidenceMineId":"3609539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0109345|2010-03-31|0092475|2010-03-31|15159"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0171433","name":"B C Quarries LLC"},"object":{"type":"mine","id":"3609539","name":"Shirvan Quarry"},"validFrom":"2020-04-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0171433|2020-04-02|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0088013","name":"David L  Karp"},"object":{"type":"mine","id":"3609539","name":"Shirvan Quarry"},"validFrom":"2020-04-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0088013|2020-04-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0088013","name":"David L  Karp"},"object":{"type":"operator","id":"0171433","name":"B C Quarries LLC"},"validFrom":"2020-04-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609539|0171433|2020-04-02|0088013|2020-04-02|14142"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609539","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"}}