{"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":"3609220","name":"B & S Quarry"},"operator":{"type":"operator","id":"0082446","name":"Ely's Stone"},"controller":{"type":"controller","id":"0069575","name":"Michael M  Ely Sr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0052277","name":"Ely Northeastern PA Stone"},"object":{"type":"mine","id":"3609220","name":"B & S Quarry"},"validFrom":"2004-03-29","validTo":"2009-11-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609220|0052277|2004-03-29|2009-11-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0043097","name":"Sheila A  Ely"},"object":{"type":"mine","id":"3609220","name":"B & S Quarry"},"validFrom":"2004-03-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609220|0043097|2004-03-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0043097","name":"Sheila A  Ely"},"object":{"type":"operator","id":"0052277","name":"Ely Northeastern PA Stone"},"validFrom":"2004-03-29","validTo":"2009-11-09","current":false,"derived":true,"evidenceMineId":"3609220","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609220|0052277|2004-03-29|0043097|2004-03-29|4485"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0069575","name":"Michael M  Ely Sr"},"object":{"type":"mine","id":"3609220","name":"B & S Quarry"},"validFrom":"2007-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609220|0069575|2007-07-10|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0082446","name":"Ely's Stone"},"object":{"type":"mine","id":"3609220","name":"B & S Quarry"},"validFrom":"2009-11-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609220|0082446|2009-11-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0069575","name":"Michael M  Ely Sr"},"object":{"type":"operator","id":"0082446","name":"Ely's Stone"},"validFrom":"2009-11-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609220","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609220|0082446|2009-11-10|0069575|2007-07-10|9910"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609220","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"}}