{"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":"1518179","name":"No 1"},"operator":{"type":"operator","id":"P24419","name":"Dataem Industries Llc"},"controller":{"type":"controller","id":"C15938","name":"Ray E  Collett; Richard  L  Collett"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12590","name":"Richard  Collett"},"object":{"type":"mine","id":"1518179","name":"No 1"},"validFrom":"1990-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|C12590|1990-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21760","name":"Hi-Wall Mining Contractors Inc"},"object":{"type":"mine","id":"1518179","name":"No 1"},"validFrom":"1999-07-01","validTo":"2000-04-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|P21760|1999-07-01|2000-04-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12590","name":"Richard  Collett"},"object":{"type":"operator","id":"P21760","name":"Hi-Wall Mining Contractors Inc"},"validFrom":"1999-07-01","validTo":"2000-04-19","current":false,"derived":true,"evidenceMineId":"1518179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|P21760|1999-07-01|C12590|1990-12-01|87428"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24419","name":"Dataem Industries Llc"},"object":{"type":"mine","id":"1518179","name":"No 1"},"validFrom":"2000-04-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|P24419|2000-04-20|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15938","name":"Richard  L  Collett  et al"},"object":{"type":"mine","id":"1518179","name":"No 1"},"validFrom":"2000-04-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|C15938|2000-04-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15938","name":"Richard  L  Collett  et al"},"object":{"type":"operator","id":"P24419","name":"Dataem Industries Llc"},"validFrom":"2000-04-20","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|P24419|2000-04-20|C15938|2000-04-20|97704"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15938","name":"Ray E  Collett  et al"},"object":{"type":"operator","id":"P24419","name":"Dataem Industries Llc"},"validFrom":"2000-04-20","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518179|P24419|2000-04-20|C15938|2000-04-20|97705"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1518179","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"}}