{"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":"2901990","name":"PORTABLE CRUSHER"},"operator":{"type":"operator","id":"L01864","name":"Espanola Transit Mix Company"},"controller":{"type":"controller","id":"0146321","name":"RPC & SAC Revocable Trust; TEMC VS Trust"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01582","name":"Richard P  Cook"},"object":{"type":"mine","id":"2901990","name":"PORTABLE CRUSHER"},"validFrom":"1950-01-01","validTo":"2017-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901990|M01582|1950-01-01|2017-10-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01864","name":"Espanola Transit Mix Company"},"object":{"type":"mine","id":"2901990","name":"PORTABLE CRUSHER"},"validFrom":"1985-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901990|L01864|1985-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01582","name":"Richard P  Cook"},"object":{"type":"operator","id":"L01864","name":"Espanola Transit Mix Company"},"validFrom":"1985-05-01","validTo":"2017-10-31","current":false,"derived":true,"evidenceMineId":"2901990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901990|L01864|1985-05-01|M01582|1950-01-01|119466"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0146321","name":"RPC & SAC Revocable Trust et al"},"object":{"type":"mine","id":"2901990","name":"PORTABLE CRUSHER"},"validFrom":"2017-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901990|0146321|2017-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146321","name":"RPC & SAC Revocable Trust et al"},"object":{"type":"operator","id":"L01864","name":"Espanola Transit Mix Company"},"validFrom":"2017-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2901990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901990|L01864|1985-05-01|0146321|2017-11-01|29960"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146321","name":"TEMC VS Trust et al"},"object":{"type":"operator","id":"L01864","name":"Espanola Transit Mix Company"},"validFrom":"2017-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2901990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901990|L01864|1985-05-01|0146321|2017-11-01|29961"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2901990","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"}}