{"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":"1519863","name":"Island Creek 1"},"operator":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"controller":{"type":"controller","id":"0167361","name":"Marian  Hicks; Jeffrey  Hicks"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06899","name":"Thomas B  Ratliff"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"1978-09-01","validTo":"2019-06-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|C06899|1978-09-01|2019-06-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0146401","name":"Austin B  Kirk et al"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2019-02-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0146401|2019-02-25|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08667","name":"Landmark Mining Company, Inc."},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2019-06-20","validTo":"2019-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|P08667|2019-06-20|2019-11-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0148921","name":"Kevin  Ratliff"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2019-06-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0148921|2019-06-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0148921","name":"Kevin  Ratliff"},"object":{"type":"operator","id":"P08667","name":"Landmark Mining Company, Inc."},"validFrom":"2019-06-20","validTo":"2019-11-07","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|P08667|2019-06-20|0148921|2019-06-20|30464"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06899","name":"Thomas B  Ratliff"},"object":{"type":"operator","id":"P08667","name":"Landmark Mining Company, Inc."},"validFrom":"2019-06-20","validTo":"2019-06-19","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|P08667|2019-06-20|C06899|1978-09-01|73163"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0167253","name":"Raven Coal LLC"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2019-11-08","validTo":"2022-01-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2019-11-08|2022-01-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0151741","name":"Jeffrey  Hicks et al"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2019-11-08","validTo":"2022-03-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0151741|2019-11-08|2022-03-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0151741","name":"Jeffrey  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal LLC"},"validFrom":"2019-11-08","validTo":"2022-01-09","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2019-11-08|0151741|2019-11-08|31414"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0151741","name":"Marian  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal LLC"},"validFrom":"2019-11-08","validTo":"2022-01-09","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2019-11-08|0151741|2019-11-08|31415"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0151741","name":"David  Ison et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal LLC"},"validFrom":"2019-11-08","validTo":"2022-01-09","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2019-11-08|0151741|2019-11-08|31416"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0162253","name":"Amber Lea Contractors, LLC"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2022-01-10","validTo":"2022-03-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0162253|2022-01-10|2022-03-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146401","name":"Austin B  Kirk et al"},"object":{"type":"operator","id":"0162253","name":"Amber Lea Contractors, LLC"},"validFrom":"2022-01-10","validTo":"2022-03-07","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0162253|2022-01-10|0146401|2019-02-25|29972"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146401","name":"Tim B  Young et al"},"object":{"type":"operator","id":"0162253","name":"Amber Lea Contractors, LLC"},"validFrom":"2022-01-10","validTo":"2022-03-07","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0162253|2022-01-10|0146401|2019-02-25|29973"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2022-03-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2022-03-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0151741","name":"Marian  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"validFrom":"2022-03-08","validTo":"2022-03-07","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2022-03-08|0151741|2019-11-08|31417"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0151741","name":"Jeffrey  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"validFrom":"2022-03-08","validTo":"2022-03-07","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2022-03-08|0151741|2019-11-08|31418"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0151741","name":"David  Ison et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"validFrom":"2022-03-08","validTo":"2022-03-07","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2022-03-08|0151741|2019-11-08|31419"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0167361","name":"Marian  Hicks et al"},"object":{"type":"mine","id":"1519863","name":"Island Creek 1"},"validFrom":"2022-03-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167361|2022-03-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0167361","name":"Marian  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal LLC"},"validFrom":"2022-03-08","validTo":"2022-01-09","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2019-11-08|0167361|2022-03-08|35187"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0167361","name":"Jeffrey  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal LLC"},"validFrom":"2022-03-08","validTo":"2022-01-09","current":false,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2019-11-08|0167361|2022-03-08|35188"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0167361","name":"Jeffrey  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"validFrom":"2022-03-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2022-03-08|0167361|2022-03-08|35189"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0167361","name":"Marian  Hicks et al"},"object":{"type":"operator","id":"0167253","name":"Raven Coal, LLC"},"validFrom":"2022-03-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519863","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519863|0167253|2022-03-08|0167361|2022-03-08|35190"}}],"coverage":{"historyRecords":14,"edgeCount":23,"intervalAnomalies":6,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1519863","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"}}