{"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":"2102752","name":"Fisher Industries Plant 22"},"operator":{"type":"operator","id":"L09256","name":"Fisher Industries"},"controller":{"type":"controller","id":"M00061","name":"Thomas G  Fisher"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09256","name":"Fisher Industries"},"object":{"type":"mine","id":"2102752","name":"Fisher Industries Plant 22"},"validFrom":"1980-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2102752|L09256|1980-11-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00061","name":"Thomas G  Fisher et al"},"object":{"type":"mine","id":"2102752","name":"Fisher Industries Plant 22"},"validFrom":"1980-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2102752|M00061|1980-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00061","name":"Thomas G  Fisher et al"},"object":{"type":"operator","id":"L09256","name":"Fisher Industries"},"validFrom":"1980-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2102752","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2102752|L09256|1980-11-01|M00061|1980-11-01|103272"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2102752","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"}}