{"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":"3605953","name":"Bloomsburg Quarry"},"operator":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"controller":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02882","name":"Fishing Creek Construction Company"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"1950-01-01","validTo":"1978-05-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L02882|1950-01-01|1978-05-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02377","name":"Fishing Creek Construction Company"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"1950-01-01","validTo":"1978-05-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|M02377|1950-01-01|1978-05-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02377","name":"Fishing Creek Construction Company"},"object":{"type":"operator","id":"L02882","name":"Fishing Creek Construction Company"},"validFrom":"1950-01-01","validTo":"1978-05-16","current":false,"derived":true,"evidenceMineId":"3605953","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L02882|1950-01-01|M02377|1950-01-01|124990"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02883","name":"Columbia Asphalt Corp"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"1978-05-17","validTo":"1989-01-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L02883|1978-05-17|1989-01-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02378","name":"Terry W  Hock"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"1978-05-17","validTo":"1989-01-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|M02378|1978-05-17|1989-01-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02378","name":"Terry W  Hock"},"object":{"type":"operator","id":"L02883","name":"Columbia Asphalt Corp"},"validFrom":"1978-05-17","validTo":"1989-01-25","current":false,"derived":true,"evidenceMineId":"3605953","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L02883|1978-05-17|M02378|1978-05-17|124991"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"1988-11-14","validTo":"2007-08-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|M00521|1988-11-14|2007-08-22"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"1989-01-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L16322|1989-01-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"validFrom":"1989-01-26","validTo":"2007-08-22","current":false,"derived":true,"evidenceMineId":"3605953","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L16322|1989-01-26|M00521|1988-11-14|112358"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"mine","id":"3605953","name":"Bloomsburg Quarry"},"validFrom":"2007-08-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|M00004|2007-08-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"validFrom":"2007-08-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"3605953","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605953|L16322|1989-01-26|M00004|2007-08-23|100965"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3605953","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"}}