{"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":"3607602","name":"Klaka Strip"},"operator":{"type":"operator","id":"0050028","name":"Albert F. Stiffler"},"controller":{"type":"controller","id":"0040482","name":"Albert F  Stiffler"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15848","name":"Mehalic Brothers"},"object":{"type":"mine","id":"3607602","name":"Klaka Strip"},"validFrom":"1984-08-01","validTo":"2001-09-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|P15848|1984-08-01|2001-09-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11328","name":"Michael  Mehalic et al"},"object":{"type":"mine","id":"3607602","name":"Klaka Strip"},"validFrom":"1984-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|C11328|1984-08-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11328","name":"Michael  Mehalic et al"},"object":{"type":"operator","id":"P15848","name":"Mehalic Brothers"},"validFrom":"1984-08-01","validTo":"2001-09-23","current":false,"derived":true,"evidenceMineId":"3607602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|P15848|1984-08-01|C11328|1984-08-01|84345"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11328","name":"William  Mehalic et al"},"object":{"type":"operator","id":"P15848","name":"Mehalic Brothers"},"validFrom":"1984-08-01","validTo":"2001-09-23","current":false,"derived":true,"evidenceMineId":"3607602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|P15848|1984-08-01|C11328|1984-08-01|84346"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050028","name":"Albert F. Stiffler"},"object":{"type":"mine","id":"3607602","name":"Klaka Strip"},"validFrom":"2001-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|0050028|2001-09-24|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040482","name":"Albert F  Stiffler"},"object":{"type":"mine","id":"3607602","name":"Klaka Strip"},"validFrom":"2001-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|0040482|2001-09-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040482","name":"Albert F  Stiffler"},"object":{"type":"operator","id":"0050028","name":"Albert F. Stiffler"},"validFrom":"2001-09-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"3607602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607602|0050028|2001-09-24|0040482|2001-09-24|45"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3607602","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"}}