{"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":"1519689","name":"HWM#1"},"operator":{"type":"operator","id":"0115985","name":"Skyway Strip, 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":"controller_controls_mine","subject":{"type":"controller","id":"C11194","name":"James H  Booth et al"},"object":{"type":"mine","id":"1519689","name":"HWM#1"},"validFrom":"2000-08-30","validTo":"2019-06-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|C11194|2000-08-30|2019-06-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03440","name":"Edward A  Asbury"},"object":{"type":"mine","id":"1519689","name":"HWM#1"},"validFrom":"2010-12-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|C03440|2010-12-10|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24441","name":"C W Augering Inc"},"object":{"type":"mine","id":"1519689","name":"HWM#1"},"validFrom":"2012-12-12","validTo":"2019-11-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|P24441|2012-12-12|2019-11-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11194","name":"James H  Booth et al"},"object":{"type":"operator","id":"P24441","name":"C W Augering Inc"},"validFrom":"2012-12-12","validTo":"2019-06-15","current":false,"derived":true,"evidenceMineId":"1519689","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|P24441|2012-12-12|C11194|2000-08-30|83972"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0149203","name":"J Mark  Campbell"},"object":{"type":"mine","id":"1519689","name":"HWM#1"},"validFrom":"2019-06-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|0149203|2019-06-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0149203","name":"J Mark  Campbell"},"object":{"type":"operator","id":"P24441","name":"C W Augering Inc"},"validFrom":"2019-06-16","validTo":"2019-11-25","current":false,"derived":true,"evidenceMineId":"1519689","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|P24441|2012-12-12|0149203|2019-06-16|30630"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0115985","name":"Skyway Strip, Inc."},"object":{"type":"mine","id":"1519689","name":"HWM#1"},"validFrom":"2019-11-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|0115985|2019-11-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03440","name":"Edward A  Asbury"},"object":{"type":"operator","id":"0115985","name":"Skyway Strip, Inc."},"validFrom":"2019-11-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519689","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519689|0115985|2019-11-26|C03440|2010-12-10|62911"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1519689","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"}}