{"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":"2026-10-17T05:35:58.500035+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":"1515082","name":"Taylor Hill No 3 Mine"},"operator":{"type":"operator","id":"P20275","name":"Hickory Hill Development Corp"},"controller":{"type":"controller","id":"C10250","name":"Infinity Coal Corp"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11243","name":"Stiltner John P"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1984-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|C11243|1984-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15714","name":"Stil-Mc Coal Company Inc"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1985-02-01","validTo":"1985-10-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P15714|1985-02-01|1985-10-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11243","name":"Stiltner John P"},"object":{"type":"operator","id":"P15714","name":"Stil-Mc Coal Company Inc"},"validFrom":"1985-02-01","validTo":"1985-10-08","current":false,"derived":true,"evidenceMineId":"1515082","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P15714|1985-02-01|C11243|1984-07-01|84213"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17296","name":"Lanaco Mining Company Inc"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1985-10-09","validTo":"1986-02-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P17296|1985-10-09|1986-02-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12190","name":"Mc Peek Donnie"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1985-10-09","validTo":"1986-02-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|C12190|1985-10-09|1986-02-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12190","name":"Mc Peek Donnie"},"object":{"type":"operator","id":"P17296","name":"Lanaco Mining Company Inc"},"validFrom":"1985-10-09","validTo":"1986-02-12","current":false,"derived":true,"evidenceMineId":"1515082","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P17296|1985-10-09|C12190|1985-10-09|86355"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17407","name":"Anik Coal Company Inc"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1986-02-13","validTo":"1990-05-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P17407|1986-02-13|1990-05-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12245","name":"Griffey Clyde"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1986-02-13","validTo":"1990-05-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|C12245|1986-02-13|1990-05-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12245","name":"Griffey Clyde"},"object":{"type":"operator","id":"P17407","name":"Anik Coal Company Inc"},"validFrom":"1986-02-13","validTo":"1990-05-28","current":false,"derived":true,"evidenceMineId":"1515082","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P17407|1986-02-13|C12245|1986-02-13|86491"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10250","name":"Infinity Coal Corp"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1989-03-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|C10250|1989-03-08|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20275","name":"Hickory Hill Development Corp"},"object":{"type":"mine","id":"1515082","name":"Taylor Hill No 3 Mine"},"validFrom":"1990-05-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P20275|1990-05-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10250","name":"Infinity Coal Corp"},"object":{"type":"operator","id":"P20275","name":"Hickory Hill Development Corp"},"validFrom":"1990-05-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"1515082","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1515082|P20275|1990-05-29|C10250|1989-03-08|81560"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1515082","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}