{"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":"1515307","name":"No 1"},"operator":{"type":"operator","id":"P20561","name":"Prater Branch Mining Inc"},"controller":{"type":"controller","id":"C11807","name":"Hurley Burton"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11364","name":"Huston Hubert"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1984-06-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|C11364|1984-06-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15908","name":"Sharp Coal Company Inc"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1985-07-01","validTo":"1986-02-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P15908|1985-07-01|1986-02-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11364","name":"Huston Hubert"},"object":{"type":"operator","id":"P15908","name":"Sharp Coal Company Inc"},"validFrom":"1985-07-01","validTo":"1986-02-19","current":false,"derived":true,"evidenceMineId":"1515307","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P15908|1985-07-01|C11364|1984-06-29|84443"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17516","name":"Innovative Energies Inc"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1986-02-20","validTo":"1986-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P17516|1986-02-20|1986-12-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00495","name":"Stacy Chuck Et Al"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1986-02-20","validTo":"1986-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|C00495|1986-02-20|1986-12-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00495","name":"Stacy Chuck Et Al"},"object":{"type":"operator","id":"P17516","name":"Innovative Energies Inc"},"validFrom":"1986-02-20","validTo":"1986-12-08","current":false,"derived":true,"evidenceMineId":"1515307","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P17516|1986-02-20|C00495|1986-02-20|47551"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18155","name":"Skyco Coal Inc"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1986-12-09","validTo":"1987-05-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P18155|1986-12-09|1987-05-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08472","name":"Allen G  Stump et al"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1986-12-09","validTo":"1987-05-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|C08472|1986-12-09|1987-05-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08472","name":"Allen G  Stump et al"},"object":{"type":"operator","id":"P18155","name":"Skyco Coal Inc"},"validFrom":"1986-12-09","validTo":"1987-05-26","current":false,"derived":true,"evidenceMineId":"1515307","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P18155|1986-12-09|C08472|1986-12-09|77380"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18852","name":"R I B Coal Company Inc"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1987-05-27","validTo":"1989-09-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P18852|1987-05-27|1989-09-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13065","name":"Hess Doug"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1987-05-27","validTo":"1989-09-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|C13065|1987-05-27|1989-09-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13065","name":"Hess Doug"},"object":{"type":"operator","id":"P18852","name":"R I B Coal Company Inc"},"validFrom":"1987-05-27","validTo":"1989-09-12","current":false,"derived":true,"evidenceMineId":"1515307","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P18852|1987-05-27|C13065|1987-05-27|88536"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20561","name":"Prater Branch Mining Inc"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1989-09-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P20561|1989-09-13|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11807","name":"Hurley Burton"},"object":{"type":"mine","id":"1515307","name":"No 1"},"validFrom":"1989-09-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|C11807|1989-09-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11807","name":"Hurley Burton"},"object":{"type":"operator","id":"P20561","name":"Prater Branch Mining Inc"},"validFrom":"1989-09-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"1515307","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515307|P20561|1989-09-13|C11807|1989-09-13|85471"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1515307","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"}}