{"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":"4102831","name":"MOSS QUARRY"},"operator":{"type":"operator","id":"L03291","name":"Permian Stone Corp"},"controller":{"type":"controller","id":"M02640","name":"Gwen B Cunningham"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03290","name":"Strain Brothers Inc"},"object":{"type":"mine","id":"4102831","name":"MOSS QUARRY"},"validFrom":"1979-01-01","validTo":"1979-08-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102831|L03290|1979-01-01|1979-08-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02639","name":"Strain Carl S Et Al"},"object":{"type":"mine","id":"4102831","name":"MOSS QUARRY"},"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":"4102831|M02639|1979-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02639","name":"Strain Carl S Et Al"},"object":{"type":"operator","id":"L03290","name":"Strain Brothers Inc"},"validFrom":"1979-01-01","validTo":"1979-08-21","current":false,"derived":true,"evidenceMineId":"4102831","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102831|L03290|1979-01-01|M02639|1979-01-01|126407"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03291","name":"Permian Stone Corp"},"object":{"type":"mine","id":"4102831","name":"MOSS QUARRY"},"validFrom":"1979-08-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102831|L03291|1979-08-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02640","name":"Gwen B Cunningham"},"object":{"type":"mine","id":"4102831","name":"MOSS QUARRY"},"validFrom":"1979-08-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102831|M02640|1979-08-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02640","name":"Gwen B Cunningham"},"object":{"type":"operator","id":"L03291","name":"Permian Stone Corp"},"validFrom":"1979-08-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4102831","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102831|L03291|1979-08-22|M02640|1979-08-22|126412"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4102831","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"}}