{"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":"1514703","name":"No 9"},"operator":{"type":"operator","id":"P17346","name":"Martin T Mining & Exploration Company Inc"},"controller":{"type":"controller","id":"C12214","name":"Hall Claude T & Wesley Gearheart"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15618","name":"Big A Mining Inc"},"object":{"type":"mine","id":"1514703","name":"No 9"},"validFrom":"1984-06-01","validTo":"1984-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|P15618|1984-06-01|1984-11-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07469","name":"Adkins Earl Et Al"},"object":{"type":"mine","id":"1514703","name":"No 9"},"validFrom":"1984-06-01","validTo":"1984-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|C07469|1984-06-01|1984-11-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07469","name":"Adkins Earl Et Al"},"object":{"type":"operator","id":"P15618","name":"Big A Mining Inc"},"validFrom":"1984-06-01","validTo":"1984-11-07","current":false,"derived":true,"evidenceMineId":"1514703","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|P15618|1984-06-01|C07469|1984-06-01|74669"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16090","name":"H & L Coal Company Inc"},"object":{"type":"mine","id":"1514703","name":"No 9"},"validFrom":"1984-11-08","validTo":"1985-11-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|P16090|1984-11-08|1985-11-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00027","name":"Hall Hargis"},"object":{"type":"mine","id":"1514703","name":"No 9"},"validFrom":"1984-11-08","validTo":"1985-11-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|C00027|1984-11-08|1985-11-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00027","name":"Hall Hargis"},"object":{"type":"operator","id":"P16090","name":"H & L Coal Company Inc"},"validFrom":"1984-11-08","validTo":"1985-11-12","current":false,"derived":true,"evidenceMineId":"1514703","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|P16090|1984-11-08|C00027|1984-11-08|43670"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17346","name":"Martin T Mining & Exploration Company Inc"},"object":{"type":"mine","id":"1514703","name":"No 9"},"validFrom":"1985-11-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|P17346|1985-11-13|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12214","name":"Hall Claude T & Wesley Gearheart"},"object":{"type":"mine","id":"1514703","name":"No 9"},"validFrom":"1985-11-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|C12214|1985-11-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12214","name":"Hall Claude T & Wesley Gearheart"},"object":{"type":"operator","id":"P17346","name":"Martin T Mining & Exploration Company Inc"},"validFrom":"1985-11-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"1514703","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514703|P17346|1985-11-13|C12214|1985-11-13|86399"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1514703","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"}}