{"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":"4406331","name":"#1 Strip"},"operator":{"type":"operator","id":"P18242","name":"Kodiak Mining Company"},"controller":{"type":"controller","id":"C12731","name":"Barnette Dennis A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18242","name":"Kodiak Mining Company"},"object":{"type":"mine","id":"4406331","name":"#1 Strip"},"validFrom":"1986-09-01","validTo":"1987-10-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|P18242|1986-09-01|1987-10-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12731","name":"Barnette Dennis A"},"object":{"type":"mine","id":"4406331","name":"#1 Strip"},"validFrom":"1986-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|C12731|1986-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12731","name":"Barnette Dennis A"},"object":{"type":"operator","id":"P18242","name":"Kodiak Mining Company"},"validFrom":"1986-09-01","validTo":"1987-10-05","current":false,"derived":true,"evidenceMineId":"4406331","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|P18242|1986-09-01|C12731|1986-09-01|87726"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13215","name":"Bolling Gina S"},"object":{"type":"mine","id":"4406331","name":"#1 Strip"},"validFrom":"1987-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|C13215|1987-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19150","name":"Pick & Shovel Inc"},"object":{"type":"mine","id":"4406331","name":"#1 Strip"},"validFrom":"1987-10-06","validTo":"1989-06-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|P19150|1987-10-06|1989-06-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13215","name":"Bolling Gina S"},"object":{"type":"operator","id":"P19150","name":"Pick & Shovel Inc"},"validFrom":"1987-10-06","validTo":"1989-06-27","current":false,"derived":true,"evidenceMineId":"4406331","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|P19150|1987-10-06|C13215|1987-10-01|89000"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18242","name":"Kodiak Mining Company"},"object":{"type":"mine","id":"4406331","name":"#1 Strip"},"validFrom":"1989-06-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|P18242|1989-06-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12731","name":"Barnette Dennis A"},"object":{"type":"operator","id":"P18242","name":"Kodiak Mining Company"},"validFrom":"1989-06-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406331","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406331|P18242|1989-06-28|C12731|1986-09-01|87727"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4406331","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"}}