{"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":"2026-10-17T05:35:58.500035+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":"0405342","name":"Dayton Trucking (Portable)"},"operator":{"type":"operator","id":"0205093","name":"Dayton Trucking Inc"},"controller":{"type":"controller","id":"0195722","name":"Junella Sue Dayton"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11479","name":"Reuben  Dayton"},"object":{"type":"mine","id":"0405342","name":"Dayton Trucking (Portable)"},"validFrom":"1997-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405342|M11479|1997-02-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15074","name":"Dayton Trucking"},"object":{"type":"mine","id":"0405342","name":"Dayton Trucking (Portable)"},"validFrom":"1998-06-01","validTo":"2025-09-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405342|L15074|1998-06-01|2025-09-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11479","name":"Reuben  Dayton"},"object":{"type":"operator","id":"L15074","name":"Dayton Trucking"},"validFrom":"1998-06-01","validTo":"2025-09-07","current":false,"derived":true,"evidenceMineId":"0405342","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405342|L15074|1998-06-01|M11479|1997-02-01|151565"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0205093","name":"Dayton Trucking Inc"},"object":{"type":"mine","id":"0405342","name":"Dayton Trucking (Portable)"},"validFrom":"2025-09-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405342|0205093|2025-09-08|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0195722","name":"Junella Sue Dayton"},"object":{"type":"mine","id":"0405342","name":"Dayton Trucking (Portable)"},"validFrom":"2025-09-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405342|0195722|2025-09-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0195722","name":"Junella Sue Dayton"},"object":{"type":"operator","id":"0205093","name":"Dayton Trucking Inc"},"validFrom":"2025-09-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"0405342","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405342|0205093|2025-09-08|0195722|2025-09-08|41809"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0405342","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}