{"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":"0203369","name":"Black Rock Arizona"},"operator":{"type":"operator","id":"L13932","name":"Suncore Construction and Materials Inc."},"controller":{"type":"controller","id":"M04084","name":"CCI  (Clyde Companies Inc)"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04084","name":"CCI  (Clyde Companies Inc)"},"object":{"type":"mine","id":"0203369","name":"Black Rock Arizona"},"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":"0203369|M04084|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11667","name":"Bryce  Christensen"},"object":{"type":"mine","id":"0203369","name":"Black Rock Arizona"},"validFrom":"1997-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203369|M11667|1997-08-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15294","name":"Bryce Christensen Excavating"},"object":{"type":"mine","id":"0203369","name":"Black Rock Arizona"},"validFrom":"2017-01-11","validTo":"2022-01-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203369|L15294|2017-01-11|2022-01-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11667","name":"Bryce  Christensen"},"object":{"type":"operator","id":"L15294","name":"Bryce Christensen Excavating"},"validFrom":"2017-01-11","validTo":"2022-01-12","current":false,"derived":true,"evidenceMineId":"0203369","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203369|L15294|2017-01-11|M11667|1997-08-01|152032"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13932","name":"Suncore Construction and Materials Inc."},"object":{"type":"mine","id":"0203369","name":"Black Rock Arizona"},"validFrom":"2022-01-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203369|L13932|2022-01-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04084","name":"CCI  (Clyde Companies Inc)"},"object":{"type":"operator","id":"L13932","name":"Suncore Construction and Materials Inc."},"validFrom":"2022-01-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"0203369","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203369|L13932|2022-01-13|M04084|1950-01-01|130914"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0203369","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"}}