{"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":"4607562","name":"Mine No 1"},"operator":{"type":"operator","id":"P22500","name":"Double Take Mining Company Inc"},"controller":{"type":"controller","id":"C03440","name":"Edward A  Asbury"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19830","name":"Wp Coal Inc"},"object":{"type":"mine","id":"4607562","name":"Mine No 1"},"validFrom":"1988-08-01","validTo":"1990-02-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607562|P19830|1988-08-01|1990-02-04"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06680","name":"Ruth  Prater  et al"},"object":{"type":"mine","id":"4607562","name":"Mine No 1"},"validFrom":"1988-08-01","validTo":"1990-02-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607562|C06680|1988-08-01|1990-02-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06680","name":"Ruth  Prater  et al"},"object":{"type":"operator","id":"P19830","name":"Wp Coal Inc"},"validFrom":"1988-08-01","validTo":"1990-02-04","current":false,"derived":true,"evidenceMineId":"4607562","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607562|P19830|1988-08-01|C06680|1988-08-01|72742"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22500","name":"Double Take Mining Company Inc"},"object":{"type":"mine","id":"4607562","name":"Mine No 1"},"validFrom":"1990-02-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607562|P22500|1990-02-05|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03440","name":"Edward A  Asbury"},"object":{"type":"mine","id":"4607562","name":"Mine No 1"},"validFrom":"1990-02-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607562|C03440|1990-02-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03440","name":"Edward A  Asbury"},"object":{"type":"operator","id":"P22500","name":"Double Take Mining Company Inc"},"validFrom":"1990-02-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607562","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607562|P22500|1990-02-05|C03440|1990-02-05|62882"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4607562","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"}}