{"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":"4403741","name":"No 1 Mine"},"operator":{"type":"operator","id":"P00564","name":"J & W Coal Company"},"controller":{"type":"controller","id":"C00387","name":"Jimmy R  Dotson; Walter R  Branham"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00388","name":"Mc Glothlin Henry M"},"object":{"type":"mine","id":"4403741","name":"No 1 Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|C00388|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00565","name":"Hope Coal Company"},"object":{"type":"mine","id":"4403741","name":"No 1 Mine"},"validFrom":"1974-01-01","validTo":"1974-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00565|1974-01-01|1974-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00387","name":"Jimmy R  Dotson et al"},"object":{"type":"mine","id":"4403741","name":"No 1 Mine"},"validFrom":"1974-01-01","validTo":"1974-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|C00387|1974-01-01|1974-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00387","name":"Jimmy R  Dotson et al"},"object":{"type":"operator","id":"P00565","name":"Hope Coal Company"},"validFrom":"1974-01-01","validTo":"1974-12-31","current":false,"derived":true,"evidenceMineId":"4403741","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00565|1974-01-01|C00387|1974-01-01|46904"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00566","name":"H M Mc Glothlin Coal Company Inc"},"object":{"type":"mine","id":"4403741","name":"No 1 Mine"},"validFrom":"1975-01-01","validTo":"1975-02-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00566|1975-01-01|1975-02-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00388","name":"Mc Glothlin Henry M"},"object":{"type":"operator","id":"P00566","name":"H M Mc Glothlin Coal Company Inc"},"validFrom":"1975-01-01","validTo":"1975-02-07","current":false,"derived":true,"evidenceMineId":"4403741","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00566|1975-01-01|C00388|1950-01-01|46912"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00564","name":"J & W Coal Company"},"object":{"type":"mine","id":"4403741","name":"No 1 Mine"},"validFrom":"1975-02-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00564|1975-02-08|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00387","name":"Jimmy R  Dotson et al"},"object":{"type":"mine","id":"4403741","name":"No 1 Mine"},"validFrom":"1975-02-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|C00387|1975-02-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00387","name":"Jimmy R  Dotson et al"},"object":{"type":"operator","id":"P00564","name":"J & W Coal Company"},"validFrom":"1975-02-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403741","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00564|1975-02-08|C00387|1975-02-08|46907"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00387","name":"Walter R  Branham et al"},"object":{"type":"operator","id":"P00564","name":"J & W Coal Company"},"validFrom":"1975-02-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403741","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403741|P00564|1975-02-08|C00387|1975-02-08|46908"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4403741","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"}}