{"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":"2103295","name":"Crusher #2"},"operator":{"type":"operator","id":"L14657","name":"Custom Crushing & Screening, Inc."},"controller":{"type":"controller","id":"0042615","name":"Dave W Reimer; Richard K Whinnery"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11150","name":"William L Schuh"},"object":{"type":"mine","id":"2103295","name":"Crusher #2"},"validFrom":"1996-05-01","validTo":"2004-02-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103295|M11150|1996-05-01|2004-02-08"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14657","name":"Custom Crushing & Screening, Inc."},"object":{"type":"mine","id":"2103295","name":"Crusher #2"},"validFrom":"2001-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103295|L14657|2001-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11150","name":"William L Schuh"},"object":{"type":"operator","id":"L14657","name":"Custom Crushing & Screening, Inc."},"validFrom":"2001-07-01","validTo":"2004-02-08","current":false,"derived":true,"evidenceMineId":"2103295","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103295|L14657|2001-07-01|M11150|1996-05-01|150812"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042615","name":"Richard K Whinnery et al"},"object":{"type":"mine","id":"2103295","name":"Crusher #2"},"validFrom":"2004-02-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103295|0042615|2004-02-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042615","name":"Richard K Whinnery et al"},"object":{"type":"operator","id":"L14657","name":"Custom Crushing & Screening, Inc."},"validFrom":"2004-02-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103295","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103295|L14657|2001-07-01|0042615|2004-02-09|4122"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042615","name":"Dave W Reimer et al"},"object":{"type":"operator","id":"L14657","name":"Custom Crushing & Screening, Inc."},"validFrom":"2004-02-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103295","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103295|L14657|2001-07-01|0042615|2004-02-09|4123"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2103295","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"}}