{"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":"0100759","name":"North River Mine"},"operator":{"type":"operator","id":"0174193","name":"Alabama Land Resources, LLC."},"controller":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00877","name":"Chevron Corporation"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|C00877|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00992","name":"Walter Energy Incorporated"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|C00992|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06861","name":"North River Energy Corp"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1950-01-01","validTo":"1981-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P06861|1950-01-01|1981-06-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01815","name":"Republic Steel Corp"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1950-01-01","validTo":"1981-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|C01815|1950-01-01|1981-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01815","name":"Republic Steel Corp"},"object":{"type":"operator","id":"P06861","name":"North River Energy Corp"},"validFrom":"1950-01-01","validTo":"1981-06-30","current":false,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P06861|1950-01-01|C01815|1950-01-01|56214"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11944","name":"North River Energy Company"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1981-07-01","validTo":"1986-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P11944|1981-07-01|1986-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08878","name":"LTV Corp & Chevron Corp"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1981-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|C08878|1981-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08878","name":"LTV Corp & Chevron Corp"},"object":{"type":"operator","id":"P11944","name":"North River Energy Company"},"validFrom":"1981-07-01","validTo":"1986-12-31","current":false,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P11944|1981-07-01|C08878|1981-07-01|78341"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01032","name":"Chevron Mining Inc"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"1987-01-01","validTo":"2011-05-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P01032|1987-01-01|2011-05-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00877","name":"Chevron Corporation"},"object":{"type":"operator","id":"P01032","name":"Chevron Mining Inc"},"validFrom":"1987-01-01","validTo":"2011-05-05","current":false,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P01032|1987-01-01|C00877|1950-01-01|50683"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01155","name":"Jim Walter Resources Inc"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2011-05-06","validTo":"2016-02-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P01155|2011-05-06|2016-02-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00992","name":"Walter Energy Incorporated"},"object":{"type":"operator","id":"P01155","name":"Jim Walter Resources Inc"},"validFrom":"2011-05-06","validTo":"2016-02-12","current":false,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|P01155|2011-05-06|C00992|1950-01-01|51493"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0144893","name":"Seminole Coal Resources LLC"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2016-02-13","validTo":"2019-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0144893|2016-02-13|2019-04-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0121101","name":"Virginia Conservation Legacy Fund (VCLF)"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2016-02-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0121101|2016-02-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0121101","name":"Virginia Conservation Legacy Fund (VCLF)"},"object":{"type":"operator","id":"0144893","name":"Seminole Coal Resources LLC"},"validFrom":"2016-02-13","validTo":"2019-04-29","current":false,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0144893|2016-02-13|0121101|2016-02-13|23617"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0164493","name":"Murray Alabama Minerals, LLC"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2019-04-30","validTo":"2020-09-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0164493|2019-04-30|2020-09-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13408","name":"Robert E  Murray"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2019-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|C13408|2019-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13408","name":"Robert E  Murray"},"object":{"type":"operator","id":"0164493","name":"Murray Alabama Minerals, LLC"},"validFrom":"2019-04-30","validTo":"2020-09-16","current":false,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0164493|2019-04-30|C13408|2019-04-30|89812"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0174193","name":"Alabama Land Resources, LLC."},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2020-09-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0174193|2020-09-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"object":{"type":"mine","id":"0100759","name":"North River Mine"},"validFrom":"2020-09-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0157801|2020-09-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"object":{"type":"operator","id":"0174193","name":"Alabama Land Resources, LLC."},"validFrom":"2020-09-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"0100759","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100759|0174193|2020-09-17|0157801|2020-09-17|32621"}}],"coverage":{"historyRecords":7,"edgeCount":21,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0100759","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"}}