{"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":"3608081","name":"Stanley Lake Quarry"},"operator":{"type":"operator","id":"L11969","name":"Dan Mc Gavin"},"controller":{"type":"controller","id":"M09220","name":"Mc Gavin Dan"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11968","name":"Stanley Brothers"},"object":{"type":"mine","id":"3608081","name":"Stanley Lake Quarry"},"validFrom":"1989-04-01","validTo":"1990-10-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608081|L11968|1989-04-01|1990-10-22"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09219","name":"Bruce  Stanley  et al"},"object":{"type":"mine","id":"3608081","name":"Stanley Lake Quarry"},"validFrom":"1989-04-01","validTo":"1990-10-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608081|M09219|1989-04-01|1990-10-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09219","name":"Bruce  Stanley  et al"},"object":{"type":"operator","id":"L11968","name":"Stanley Brothers"},"validFrom":"1989-04-01","validTo":"1990-10-22","current":false,"derived":true,"evidenceMineId":"3608081","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608081|L11968|1989-04-01|M09219|1989-04-01|145893"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11969","name":"Dan Mc Gavin"},"object":{"type":"mine","id":"3608081","name":"Stanley Lake Quarry"},"validFrom":"1990-10-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608081|L11969|1990-10-23|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09220","name":"Mc Gavin Dan"},"object":{"type":"mine","id":"3608081","name":"Stanley Lake Quarry"},"validFrom":"1990-10-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608081|M09220|1990-10-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09220","name":"Mc Gavin Dan"},"object":{"type":"operator","id":"L11969","name":"Dan Mc Gavin"},"validFrom":"1990-10-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"3608081","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608081|L11969|1990-10-23|M09220|1990-10-23|145896"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3608081","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"}}