{"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":"1518201","name":"Cotton Coal #2 Mine"},"operator":{"type":"operator","id":"0057917","name":"Cotton Coal Co Inc"},"controller":{"type":"controller","id":"0048189","name":"Mark  Craft"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24223","name":"Earnest Cook & Sons Mining Inc"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"1999-09-01","validTo":"1999-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|P24223|1999-09-01|1999-11-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04802","name":"Randy A  Cook et al"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"1999-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|C04802|1999-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04802","name":"Randy A  Cook et al"},"object":{"type":"operator","id":"P24223","name":"Earnest Cook & Sons Mining Inc"},"validFrom":"1999-09-01","validTo":"1999-11-07","current":false,"derived":true,"evidenceMineId":"1518201","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|P24223|1999-09-01|C04802|1999-09-01|66802"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04802","name":"Michael K  Cook et al"},"object":{"type":"operator","id":"P24223","name":"Earnest Cook & Sons Mining Inc"},"validFrom":"1999-09-01","validTo":"1999-11-07","current":false,"derived":true,"evidenceMineId":"1518201","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|P24223|1999-09-01|C04802|1999-09-01|66803"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24307","name":"North Fork Development Company Inc"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"1999-11-08","validTo":"2004-02-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|P24307|1999-11-08|2004-02-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15882","name":"Bruce  Addington"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"1999-11-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|C15882|1999-11-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15882","name":"Bruce  Addington"},"object":{"type":"operator","id":"P24307","name":"North Fork Development Company Inc"},"validFrom":"1999-11-08","validTo":"2004-02-01","current":false,"derived":true,"evidenceMineId":"1518201","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|P24307|1999-11-08|C15882|1999-11-08|97429"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051924","name":"Silver Cloud Coal Co., Inc."},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"2004-02-02","validTo":"2005-07-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|0051924|2004-02-02|2005-07-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15298","name":"Garry W  Carroll"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"2004-02-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|C15298|2004-02-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15298","name":"Garry W  Carroll"},"object":{"type":"operator","id":"0051924","name":"Silver Cloud Coal Co., Inc."},"validFrom":"2004-02-02","validTo":"2005-07-12","current":false,"derived":true,"evidenceMineId":"1518201","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|0051924|2004-02-02|C15298|2004-02-02|95208"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0048189","name":"Mark  Craft"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"2005-02-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|0048189|2005-02-11|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0057917","name":"Cotton Coal Co Inc"},"object":{"type":"mine","id":"1518201","name":"Cotton Coal #2 Mine"},"validFrom":"2005-07-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|0057917|2005-07-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0048189","name":"Mark  Craft"},"object":{"type":"operator","id":"0057917","name":"Cotton Coal Co Inc"},"validFrom":"2005-07-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518201","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518201|0057917|2005-07-13|0048189|2005-02-11|6001"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1518201","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"}}