{"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":"1516697","name":"Oxford #6"},"operator":{"type":"operator","id":"P23521","name":"New Horizons Coal Inc"},"controller":{"type":"controller","id":"C15090","name":"Goddess Coal Corp LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11354","name":"Robbins Gus D"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1984-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|C11354|1984-09-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12763","name":"Great Western Resources Inc"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1987-02-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|C12763|1987-02-04|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18299","name":"Great Western Coal Inc"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1989-08-01","validTo":"1990-02-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P18299|1989-08-01|1990-02-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12763","name":"Great Western Resources Inc"},"object":{"type":"operator","id":"P18299","name":"Great Western Coal Inc"},"validFrom":"1989-08-01","validTo":"1990-02-11","current":false,"derived":true,"evidenceMineId":"1516697","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P18299|1989-08-01|C12763|1987-02-04|87850"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16101","name":"Harlan Wallins Coal Company Inc"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1990-02-12","validTo":"1991-11-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P16101|1990-02-12|1991-11-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11354","name":"Robbins Gus D"},"object":{"type":"operator","id":"P16101","name":"Harlan Wallins Coal Company Inc"},"validFrom":"1990-02-12","validTo":"1991-11-13","current":false,"derived":true,"evidenceMineId":"1516697","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P16101|1990-02-12|C11354|1984-09-01|84424"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22217","name":"New Horizons Coal Inc"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1991-11-14","validTo":"1995-08-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P22217|1991-11-14|1995-08-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12763","name":"Great Western Resources Inc"},"object":{"type":"operator","id":"P22217","name":"New Horizons Coal Inc"},"validFrom":"1991-11-14","validTo":"1995-08-14","current":false,"derived":true,"evidenceMineId":"1516697","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P22217|1991-11-14|C12763|1987-02-04|87851"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23215","name":"New Horizons Coal Inc"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1995-08-15","validTo":"1996-06-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P23215|1995-08-15|1996-06-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14870","name":"George E  Barker"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1995-08-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|C14870|1995-08-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14870","name":"George E  Barker"},"object":{"type":"operator","id":"P23215","name":"New Horizons Coal Inc"},"validFrom":"1995-08-15","validTo":"1996-06-15","current":false,"derived":true,"evidenceMineId":"1516697","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P23215|1995-08-15|C14870|1995-08-15|94131"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15090","name":"Goddess Coal Corp LLC"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1996-06-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|C15090|1996-06-15|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23521","name":"New Horizons Coal Inc"},"object":{"type":"mine","id":"1516697","name":"Oxford #6"},"validFrom":"1996-06-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P23521|1996-06-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15090","name":"Goddess Coal Corp LLC"},"object":{"type":"operator","id":"P23521","name":"New Horizons Coal Inc"},"validFrom":"1996-06-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"1516697","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516697|P23521|1996-06-16|C15090|1996-06-15|94736"}}],"coverage":{"historyRecords":5,"edgeCount":14,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1516697","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"}}