{"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":"2401400","name":"Portable Crusher"},"operator":{"type":"operator","id":"L09288","name":"Casino Creek Concrete Inc"},"controller":{"type":"controller","id":"M07307","name":"Andrew J  Mathison"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05332","name":"Robert Tindall Contractor"},"object":{"type":"mine","id":"2401400","name":"Portable Crusher"},"validFrom":"1950-01-01","validTo":"1979-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|L05332|1950-01-01|1979-04-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04303","name":"Tindall Robert"},"object":{"type":"mine","id":"2401400","name":"Portable Crusher"},"validFrom":"1950-01-01","validTo":"1979-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|M04303|1950-01-01|1979-04-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04303","name":"Tindall Robert"},"object":{"type":"operator","id":"L05332","name":"Robert Tindall Contractor"},"validFrom":"1950-01-01","validTo":"1979-04-30","current":false,"derived":true,"evidenceMineId":"2401400","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|L05332|1950-01-01|M04303|1950-01-01|131643"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05333","name":"Casino Creek Concrete"},"object":{"type":"mine","id":"2401400","name":"Portable Crusher"},"validFrom":"1979-05-01","validTo":"1985-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|L05333|1979-05-01|1985-10-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04304","name":"Guy R  Tindall"},"object":{"type":"mine","id":"2401400","name":"Portable Crusher"},"validFrom":"1979-05-01","validTo":"1985-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|M04304|1979-05-01|1985-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04304","name":"Guy R  Tindall"},"object":{"type":"operator","id":"L05333","name":"Casino Creek Concrete"},"validFrom":"1979-05-01","validTo":"1985-10-31","current":false,"derived":true,"evidenceMineId":"2401400","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|L05333|1979-05-01|M04304|1979-05-01|131644"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09288","name":"Casino Creek Concrete Inc"},"object":{"type":"mine","id":"2401400","name":"Portable Crusher"},"validFrom":"1985-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|L09288|1985-11-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07307","name":"Andrew J  Mathison"},"object":{"type":"mine","id":"2401400","name":"Portable Crusher"},"validFrom":"1985-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|M07307|1985-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07307","name":"Andrew J  Mathison"},"object":{"type":"operator","id":"L09288","name":"Casino Creek Concrete Inc"},"validFrom":"1985-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2401400","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2401400|L09288|1985-11-01|M07307|1985-11-01|140626"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2401400","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"}}