{"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":"3600241","name":"Talmage Quarry"},"operator":{"type":"operator","id":"0080786","name":"Allan Myers Materials"},"controller":{"type":"controller","id":"M08361","name":"A Ross  Myers"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00565","name":"D M Stoltzfus"},"object":{"type":"mine","id":"3600241","name":"Talmage Quarry"},"validFrom":"1950-01-01","validTo":"2007-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|L00565|1950-01-01|2007-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00478","name":"Ruth E  Stoltzfus"},"object":{"type":"mine","id":"3600241","name":"Talmage Quarry"},"validFrom":"1950-01-01","validTo":"2006-05-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|M00478|1950-01-01|2006-05-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00478","name":"Ruth E  Stoltzfus"},"object":{"type":"operator","id":"L00565","name":"D M Stoltzfus"},"validFrom":"1950-01-01","validTo":"2006-05-08","current":false,"derived":true,"evidenceMineId":"3600241","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|L00565|1950-01-01|M00478|1950-01-01|111712"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08361","name":"A Ross  Myers"},"object":{"type":"mine","id":"3600241","name":"Talmage Quarry"},"validFrom":"2006-05-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|M08361|2006-05-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08361","name":"A Ross  Myers"},"object":{"type":"operator","id":"L00565","name":"D M Stoltzfus"},"validFrom":"2006-05-09","validTo":"2007-05-31","current":false,"derived":true,"evidenceMineId":"3600241","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|L00565|1950-01-01|M08361|2006-05-09|143205"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0080786","name":"Allan Myers Materials"},"object":{"type":"mine","id":"3600241","name":"Talmage Quarry"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|0080786|2007-06-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08361","name":"A Ross  Myers"},"object":{"type":"mine","id":"3600241","name":"Talmage Quarry"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|M08361|2007-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08361","name":"A Ross  Myers"},"object":{"type":"operator","id":"0080786","name":"Allan Myers Materials"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3600241","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3600241|0080786|2007-06-01|M08361|2007-06-01|143210"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3600241","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"}}