{"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":"4703917","name":"Weber Pit"},"operator":{"type":"operator","id":"0180893","name":"Wondra Construction Inc."},"controller":{"type":"controller","id":"0166983","name":"Robert  Mayer; Roger  Thimm; Russ  Wondra"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0180893","name":"Wondra Construction Inc."},"object":{"type":"mine","id":"4703917","name":"Weber Pit"},"validFrom":"2022-02-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703917|0180893|2022-02-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0166983","name":"Russ  Wondra et al"},"object":{"type":"mine","id":"4703917","name":"Weber Pit"},"validFrom":"2022-02-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703917|0166983|2022-02-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0166983","name":"Russ  Wondra et al"},"object":{"type":"operator","id":"0180893","name":"Wondra Construction Inc."},"validFrom":"2022-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703917","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703917|0180893|2022-02-03|0166983|2022-02-03|35034"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0166983","name":"Roger  Thimm et al"},"object":{"type":"operator","id":"0180893","name":"Wondra Construction Inc."},"validFrom":"2022-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703917","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703917|0180893|2022-02-03|0166983|2022-02-03|35035"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0166983","name":"Robert  Mayer et al"},"object":{"type":"operator","id":"0180893","name":"Wondra Construction Inc."},"validFrom":"2022-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703917","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703917|0180893|2022-02-03|0166983|2022-02-03|35036"}}],"coverage":{"historyRecords":3,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4703917","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"}}