{"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":"4403292","name":"Strip No 1"},"operator":{"type":"operator","id":"P03221","name":"Clifton Mining Corp"},"controller":{"type":"controller","id":"C00169","name":"Slusher Paul O"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03221","name":"Clifton Mining Corp"},"object":{"type":"mine","id":"4403292","name":"Strip No 1"},"validFrom":"1950-01-01","validTo":"1976-10-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|P03221|1950-01-01|1976-10-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00169","name":"Slusher Paul O"},"object":{"type":"mine","id":"4403292","name":"Strip No 1"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|C00169|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00169","name":"Slusher Paul O"},"object":{"type":"operator","id":"P03221","name":"Clifton Mining Corp"},"validFrom":"1950-01-01","validTo":"1976-10-10","current":false,"derived":true,"evidenceMineId":"4403292","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|P03221|1950-01-01|C00169|1950-01-01|44660"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03407","name":"H & B Coal Mining Company Inc"},"object":{"type":"mine","id":"4403292","name":"Strip No 1"},"validFrom":"1976-10-11","validTo":"1980-02-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|P03407|1976-10-11|1980-02-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01332","name":"Mc Daries H C"},"object":{"type":"mine","id":"4403292","name":"Strip No 1"},"validFrom":"1976-10-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|C01332|1976-10-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01332","name":"Mc Daries H C"},"object":{"type":"operator","id":"P03407","name":"H & B Coal Mining Company Inc"},"validFrom":"1976-10-11","validTo":"1980-02-13","current":false,"derived":true,"evidenceMineId":"4403292","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|P03407|1976-10-11|C01332|1976-10-11|53555"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03221","name":"Clifton Mining Corp"},"object":{"type":"mine","id":"4403292","name":"Strip No 1"},"validFrom":"1980-02-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|P03221|1980-02-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00169","name":"Slusher Paul O"},"object":{"type":"operator","id":"P03221","name":"Clifton Mining Corp"},"validFrom":"1980-02-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403292","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403292|P03221|1980-02-14|C00169|1950-01-01|44661"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4403292","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"}}