{"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":"0500571","name":"London Mine"},"operator":{"type":"operator","id":"L09727","name":"Alma London Limited Liability Company"},"controller":{"type":"controller","id":"M07621","name":"Cobb Resources Corp & Boulder Gold Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00888","name":"George  Lotspeich"},"object":{"type":"mine","id":"0500571","name":"London Mine"},"validFrom":"1978-03-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0500571|M00888|1978-03-09|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01085","name":"Cobb Resources Corp"},"object":{"type":"mine","id":"0500571","name":"London Mine"},"validFrom":"1979-10-01","validTo":"1987-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0500571|L01085|1979-10-01|1987-07-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00888","name":"George  Lotspeich"},"object":{"type":"operator","id":"L01085","name":"Cobb Resources Corp"},"validFrom":"1979-10-01","validTo":"1987-07-25","current":false,"derived":true,"evidenceMineId":"0500571","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0500571|L01085|1979-10-01|M00888|1978-03-09|115686"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09727","name":"Alma London Limited Liability Company"},"object":{"type":"mine","id":"0500571","name":"London Mine"},"validFrom":"1987-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0500571|L09727|1987-07-26|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07621","name":"Cobb Resources Corp & Boulder Gold Inc"},"object":{"type":"mine","id":"0500571","name":"London Mine"},"validFrom":"1987-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0500571|M07621|1987-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07621","name":"Cobb Resources Corp & Boulder Gold Inc"},"object":{"type":"operator","id":"L09727","name":"Alma London Limited Liability Company"},"validFrom":"1987-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"0500571","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0500571|L09727|1987-07-26|M07621|1987-07-26|141675"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0500571","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"}}