{"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":"1002247","name":"TMC Contractors, Inc."},"operator":{"type":"operator","id":"0146838","name":"TMC Contractors, Inc."},"controller":{"type":"controller","id":"0185620","name":"Kyle C Johnson; JD  Lundblade"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0134076","name":"Hitt Pit, Inc."},"object":{"type":"mine","id":"1002247","name":"TMC Contractors, Inc."},"validFrom":"2014-05-06","validTo":"2016-08-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0134076|2014-05-06|2016-08-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0114147","name":"Turk  McMurtrey"},"object":{"type":"mine","id":"1002247","name":"TMC Contractors, Inc."},"validFrom":"2014-05-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0114147|2014-05-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0114147","name":"Turk  McMurtrey"},"object":{"type":"operator","id":"0134076","name":"Hitt Pit, Inc."},"validFrom":"2014-05-06","validTo":"2016-08-29","current":false,"derived":true,"evidenceMineId":"1002247","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0134076|2014-05-06|0114147|2014-05-06|21428"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0146838","name":"TMC Contractors, Inc."},"object":{"type":"mine","id":"1002247","name":"TMC Contractors, Inc."},"validFrom":"2016-08-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0146838|2016-08-30|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0128103","name":"Randy  Turnage"},"object":{"type":"mine","id":"1002247","name":"TMC Contractors, Inc."},"validFrom":"2016-08-30","validTo":"2024-05-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0128103|2016-08-30|2024-05-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0128103","name":"Randy  Turnage"},"object":{"type":"operator","id":"0146838","name":"TMC Contractors, Inc."},"validFrom":"2016-08-30","validTo":"2024-05-22","current":false,"derived":true,"evidenceMineId":"1002247","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0146838|2016-08-30|0128103|2016-08-30|25662"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0185620","name":"JD  Lundblade et al"},"object":{"type":"mine","id":"1002247","name":"TMC Contractors, Inc."},"validFrom":"2024-05-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0185620|2024-05-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0185620","name":"JD  Lundblade et al"},"object":{"type":"operator","id":"0146838","name":"TMC Contractors, Inc."},"validFrom":"2024-05-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"1002247","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0146838|2016-08-30|0185620|2024-05-23|39616"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0185620","name":"Kyle C Johnson et al"},"object":{"type":"operator","id":"0146838","name":"TMC Contractors, Inc."},"validFrom":"2024-05-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"1002247","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002247|0146838|2016-08-30|0185620|2024-05-23|39617"}}],"coverage":{"historyRecords":4,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1002247","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"}}