{"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":"3605456","name":"Zavek Strip"},"operator":{"type":"operator","id":"P06626","name":"Prime Coals"},"controller":{"type":"controller","id":"C01625","name":"James L  Laurita"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06117","name":"Zavek Inc"},"object":{"type":"mine","id":"3605456","name":"Zavek Strip"},"validFrom":"1975-01-01","validTo":"1978-05-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605456|P06117|1975-01-01|1978-05-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05099","name":"Zalor Joseph L"},"object":{"type":"mine","id":"3605456","name":"Zavek Strip"},"validFrom":"1975-01-01","validTo":"1978-05-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605456|C05099|1975-01-01|1978-05-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05099","name":"Zalor Joseph L"},"object":{"type":"operator","id":"P06117","name":"Zavek Inc"},"validFrom":"1975-01-01","validTo":"1978-05-14","current":false,"derived":true,"evidenceMineId":"3605456","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605456|P06117|1975-01-01|C05099|1975-01-01|67538"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01625","name":"James L  Laurita"},"object":{"type":"mine","id":"3605456","name":"Zavek Strip"},"validFrom":"1977-08-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605456|C01625|1977-08-18|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06626","name":"Prime Coals"},"object":{"type":"mine","id":"3605456","name":"Zavek Strip"},"validFrom":"1978-05-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605456|P06626|1978-05-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01625","name":"James L  Laurita"},"object":{"type":"operator","id":"P06626","name":"Prime Coals"},"validFrom":"1978-05-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"3605456","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605456|P06626|1978-05-15|C01625|1977-08-18|55355"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3605456","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"}}