{"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":"4502737","name":"PART 48-F"},"operator":{"type":"operator","id":"L15026","name":"Rock Services Inc"},"controller":{"type":"controller","id":"M10242","name":"Gordon  Pogorelc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02810","name":"James C O'Connor"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"1979-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|M02810|1979-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03505","name":"J C O'Connor Construction Inc"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"1980-11-01","validTo":"1994-02-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|L03505|1980-11-01|1994-02-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02810","name":"James C O'Connor"},"object":{"type":"operator","id":"L03505","name":"J C O'Connor Construction Inc"},"validFrom":"1980-11-01","validTo":"1994-02-14","current":false,"derived":true,"evidenceMineId":"4502737","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|L03505|1980-11-01|M02810|1979-01-01|126997"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15026","name":"Rock Services Inc"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"1994-02-15","validTo":"2018-01-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|L15026|1994-02-15|2018-01-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10242","name":"Gordon  Pogorelc Et Al"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"1994-02-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|M10242|1994-02-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10242","name":"Gordon  Pogorelc Et Al"},"object":{"type":"operator","id":"L15026","name":"Rock Services Inc"},"validFrom":"1994-02-15","validTo":"2018-01-21","current":false,"derived":true,"evidenceMineId":"4502737","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|L15026|1994-02-15|M10242|1994-02-15|148678"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0155473","name":"Mountain Side Sand & Gravel LLC"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"2018-01-22","validTo":"2026-03-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|0155473|2018-01-22|2026-03-04"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0138781","name":"Howard  Wheeler"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"2018-01-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|0138781|2018-01-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0138781","name":"Howard  Wheeler"},"object":{"type":"operator","id":"0155473","name":"Mountain Side Sand & Gravel LLC"},"validFrom":"2018-01-22","validTo":"2026-03-04","current":false,"derived":true,"evidenceMineId":"4502737","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|0155473|2018-01-22|0138781|2018-01-22|28066"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15026","name":"Rock Services Inc"},"object":{"type":"mine","id":"4502737","name":"PART 48-F"},"validFrom":"2026-03-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|L15026|2026-03-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10242","name":"Gordon  Pogorelc Et Al"},"object":{"type":"operator","id":"L15026","name":"Rock Services Inc"},"validFrom":"2026-03-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"4502737","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502737|L15026|2026-03-05|M10242|1994-02-15|148679"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4502737","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"}}