{"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":"4403002","name":"Old Dominion Quarry Mine #4"},"operator":{"type":"operator","id":"L09227","name":"New Alberene Stone Company Inc"},"controller":{"type":"controller","id":"M07262","name":"Suomen Vuolukivi Oy"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00851","name":"Alberene Stone Company"},"object":{"type":"mine","id":"4403002","name":"Old Dominion Quarry Mine #4"},"validFrom":"1950-01-01","validTo":"1987-02-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403002|L00851|1950-01-01|1987-02-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00711","name":"Wilkins Vance Jr"},"object":{"type":"mine","id":"4403002","name":"Old Dominion Quarry Mine #4"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403002|M00711|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00711","name":"Wilkins Vance Jr"},"object":{"type":"operator","id":"L00851","name":"Alberene Stone Company"},"validFrom":"1950-01-01","validTo":"1987-02-18","current":false,"derived":true,"evidenceMineId":"4403002","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403002|L00851|1950-01-01|M00711|1950-01-01|114309"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09227","name":"New Alberene Stone Company Inc"},"object":{"type":"mine","id":"4403002","name":"Old Dominion Quarry Mine #4"},"validFrom":"1987-02-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403002|L09227|1987-02-19|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07262","name":"Suomen Vuolukivi Oy"},"object":{"type":"mine","id":"4403002","name":"Old Dominion Quarry Mine #4"},"validFrom":"1987-02-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403002|M07262|1987-02-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07262","name":"Suomen Vuolukivi Oy"},"object":{"type":"operator","id":"L09227","name":"New Alberene Stone Company Inc"},"validFrom":"1987-02-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403002","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403002|L09227|1987-02-19|M07262|1987-02-19|140529"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4403002","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"}}