{"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":"4002480","name":"No 2 Strip"},"operator":{"type":"operator","id":"P10037","name":"Mountain Movers Inc"},"controller":{"type":"controller","id":"C07724","name":"Thomason Roy G"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06571","name":"Eastern Mining & Minerals Inc"},"object":{"type":"mine","id":"4002480","name":"No 2 Strip"},"validFrom":"1978-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002480|C06571|1978-02-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08160","name":"Eastern Mining & Minerals Inc"},"object":{"type":"mine","id":"4002480","name":"No 2 Strip"},"validFrom":"1978-10-01","validTo":"1979-12-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002480|P08160|1978-10-01|1979-12-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06571","name":"Eastern Mining & Minerals Inc"},"object":{"type":"operator","id":"P08160","name":"Eastern Mining & Minerals Inc"},"validFrom":"1978-10-01","validTo":"1979-12-11","current":false,"derived":true,"evidenceMineId":"4002480","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002480|P08160|1978-10-01|C06571|1978-02-01|72148"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07724","name":"Thomason Roy G"},"object":{"type":"mine","id":"4002480","name":"No 2 Strip"},"validFrom":"1979-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002480|C07724|1979-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10037","name":"Mountain Movers Inc"},"object":{"type":"mine","id":"4002480","name":"No 2 Strip"},"validFrom":"1979-12-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002480|P10037|1979-12-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07724","name":"Thomason Roy G"},"object":{"type":"operator","id":"P10037","name":"Mountain Movers Inc"},"validFrom":"1979-12-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"4002480","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002480|P10037|1979-12-12|C07724|1979-10-01|75523"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4002480","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"}}