{"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":"2102637","name":"Spike Lake Pit And Mill"},"operator":{"type":"operator","id":"L05415","name":"D E Buckley"},"controller":{"type":"controller","id":"M04373","name":"Douglas E  Buckley"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05415","name":"D E Buckley"},"object":{"type":"mine","id":"2102637","name":"Spike Lake Pit And Mill"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102637|L05415|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04373","name":"Douglas E  Buckley"},"object":{"type":"mine","id":"2102637","name":"Spike Lake Pit And Mill"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102637|M04373|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04373","name":"Douglas E  Buckley"},"object":{"type":"operator","id":"L05415","name":"D E Buckley"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2102637","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102637|L05415|1950-01-01|M04373|1950-01-01|131847"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2102637","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"}}