{"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":"2026-10-17T05:35:58.500035+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":"1700334","name":"Wash Plant and Cone Crusher"},"operator":{"type":"operator","id":"L14631","name":"R Pepin & Sons Inc"},"controller":{"type":"controller","id":"M11130","name":"David  Pepin"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L37537","name":"R Pepin & Sons Inc"},"object":{"type":"mine","id":"1700334","name":"Wash Plant and Cone Crusher"},"validFrom":"1950-01-01","validTo":"1995-12-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1700334|L37537|1950-01-01|1995-12-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M37537","name":"Bertrand  Pepin"},"object":{"type":"mine","id":"1700334","name":"Wash Plant and Cone Crusher"},"validFrom":"1950-01-01","validTo":"1995-12-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1700334|M37537|1950-01-01|1995-12-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M37537","name":"Bertrand  Pepin"},"object":{"type":"operator","id":"L37537","name":"R Pepin & Sons Inc"},"validFrom":"1950-01-01","validTo":"1995-12-28","current":false,"derived":true,"evidenceMineId":"1700334","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1700334|L37537|1950-01-01|M37537|1950-01-01|166815"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14631","name":"R Pepin & Sons Inc"},"object":{"type":"mine","id":"1700334","name":"Wash Plant and Cone Crusher"},"validFrom":"1995-12-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1700334|L14631|1995-12-29|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11130","name":"David  Pepin"},"object":{"type":"mine","id":"1700334","name":"Wash Plant and Cone Crusher"},"validFrom":"1995-12-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1700334|M11130|1995-12-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11130","name":"David  Pepin"},"object":{"type":"operator","id":"L14631","name":"R Pepin & Sons Inc"},"validFrom":"1995-12-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"1700334","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1700334|L14631|1995-12-29|M11130|1995-12-29|150784"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1700334","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}