{"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":"1516071","name":"No 1"},"operator":{"type":"operator","id":"P20414","name":"Ashley Coal Company"},"controller":{"type":"controller","id":"C12561","name":"Grant Ricky"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11699","name":"Wynn Mike"},"object":{"type":"mine","id":"1516071","name":"No 1"},"validFrom":"1985-02-01","validTo":"1989-10-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516071|C11699|1985-02-01|1989-10-23"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16456","name":"Lesco Mining Company"},"object":{"type":"mine","id":"1516071","name":"No 1"},"validFrom":"1987-06-01","validTo":"1989-02-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516071|P16456|1987-06-01|1989-02-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11699","name":"Wynn Mike"},"object":{"type":"operator","id":"P16456","name":"Lesco Mining Company"},"validFrom":"1987-06-01","validTo":"1989-02-16","current":false,"derived":true,"evidenceMineId":"1516071","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516071|P16456|1987-06-01|C11699|1985-02-01|85250"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20414","name":"Ashley Coal Company"},"object":{"type":"mine","id":"1516071","name":"No 1"},"validFrom":"1989-02-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516071|P20414|1989-02-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12561","name":"Grant Ricky Et Al"},"object":{"type":"mine","id":"1516071","name":"No 1"},"validFrom":"1989-02-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516071|C12561|1989-02-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12561","name":"Grant Ricky Et Al"},"object":{"type":"operator","id":"P20414","name":"Ashley Coal Company"},"validFrom":"1989-02-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"1516071","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1516071|P20414|1989-02-17|C12561|1989-02-17|87389"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1516071","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"}}