{"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":"1900304","name":"Grafton Plant"},"operator":{"type":"operator","id":"L10670","name":"Emaral Corp"},"controller":{"type":"controller","id":"M08106","name":"Egerton Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01825","name":"E L Dauphinais Inc"},"object":{"type":"mine","id":"1900304","name":"Grafton Plant"},"validFrom":"1950-01-01","validTo":"1988-09-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1900304|L01825|1950-01-01|1988-09-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02199","name":"Dauphinais Albert A Et Al"},"object":{"type":"mine","id":"1900304","name":"Grafton Plant"},"validFrom":"1950-01-01","validTo":"1988-09-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1900304|M02199|1950-01-01|1988-09-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02199","name":"Dauphinais Albert A Et Al"},"object":{"type":"operator","id":"L01825","name":"E L Dauphinais Inc"},"validFrom":"1950-01-01","validTo":"1988-09-15","current":false,"derived":true,"evidenceMineId":"1900304","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1900304|L01825|1950-01-01|M02199|1950-01-01|124296"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08106","name":"Egerton Inc"},"object":{"type":"mine","id":"1900304","name":"Grafton Plant"},"validFrom":"1988-09-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1900304|M08106|1988-09-13|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10670","name":"Emaral Corp"},"object":{"type":"mine","id":"1900304","name":"Grafton Plant"},"validFrom":"1988-09-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1900304|L10670|1988-09-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08106","name":"Egerton Inc"},"object":{"type":"operator","id":"L10670","name":"Emaral Corp"},"validFrom":"1988-09-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"1900304","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1900304|L10670|1988-09-16|M08106|1988-09-13|142739"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1900304","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"}}