{"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":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"operator":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"controller":{"type":"controller","id":"0085453","name":"Metinvest B V"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13340","name":"Kenneth L  Stacy"},"object":{"type":"mine","id":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"validFrom":"2001-08-01","validTo":"2006-02-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|C13340|2001-08-01|2006-02-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11559","name":"David  Powers"},"object":{"type":"mine","id":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"validFrom":"2004-09-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|C11559|2004-09-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0054576","name":"Mattieboo, LLC."},"object":{"type":"mine","id":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"validFrom":"2005-03-08","validTo":"2007-10-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|0054576|2005-03-08|2007-10-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11559","name":"David  Powers"},"object":{"type":"operator","id":"0054576","name":"Mattieboo, LLC."},"validFrom":"2005-03-08","validTo":"2007-10-04","current":false,"derived":true,"evidenceMineId":"4407130","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|0054576|2005-03-08|C11559|2004-09-29|84898"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"validFrom":"2006-02-10","validTo":"2009-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|C00375|2006-02-10|2009-04-29"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"object":{"type":"mine","id":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"validFrom":"2007-10-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|P24715|2007-10-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2007-10-05","validTo":"2009-04-29","current":false,"derived":true,"evidenceMineId":"4407130","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|P24715|2007-10-05|C00375|2006-02-10|46797"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13340","name":"Kenneth L  Stacy"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2007-10-05","validTo":"2006-02-09","current":false,"derived":true,"evidenceMineId":"4407130","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|P24715|2007-10-05|C13340|2001-08-01|89362"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"mine","id":"4407130","name":"Town Hill Creek Surface Mine No. 1"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|0085453|2009-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"4407130","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4407130|P24715|2007-10-05|0085453|2009-04-30|13574"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4407130","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"}}