{"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":"4002582","name":"Bell City No 1"},"operator":{"type":"operator","id":"L09593","name":"Tony Grooms Construction Company"},"controller":{"type":"controller","id":"M07524","name":"Tony  Grooms"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00809","name":"Gresham L C Jr"},"object":{"type":"mine","id":"4002582","name":"Bell City No 1"},"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":"4002582|M00809|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01324","name":"James A  Skinner"},"object":{"type":"mine","id":"4002582","name":"Bell City No 1"},"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":"4002582|M01324|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03050","name":"Gleason Clay Products"},"object":{"type":"mine","id":"4002582","name":"Bell City No 1"},"validFrom":"1979-12-01","validTo":"1984-06-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|L03050|1979-12-01|1984-06-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01324","name":"James A  Skinner"},"object":{"type":"operator","id":"L03050","name":"Gleason Clay Products"},"validFrom":"1979-12-01","validTo":"1984-06-18","current":false,"derived":true,"evidenceMineId":"4002582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|L03050|1979-12-01|M01324|1950-01-01|117995"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00949","name":"Henderson Clay Products Inc"},"object":{"type":"mine","id":"4002582","name":"Bell City No 1"},"validFrom":"1984-06-19","validTo":"1987-03-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|L00949|1984-06-19|1987-03-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00809","name":"Gresham L C Jr"},"object":{"type":"operator","id":"L00949","name":"Henderson Clay Products Inc"},"validFrom":"1984-06-19","validTo":"1987-03-02","current":false,"derived":true,"evidenceMineId":"4002582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|L00949|1984-06-19|M00809|1950-01-01|114955"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07524","name":"Tony  Grooms"},"object":{"type":"mine","id":"4002582","name":"Bell City No 1"},"validFrom":"1987-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|M07524|1987-03-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09593","name":"Tony Grooms Construction Company"},"object":{"type":"mine","id":"4002582","name":"Bell City No 1"},"validFrom":"1987-03-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|L09593|1987-03-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07524","name":"Tony  Grooms"},"object":{"type":"operator","id":"L09593","name":"Tony Grooms Construction Company"},"validFrom":"1987-03-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4002582","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4002582|L09593|1987-03-03|M07524|1987-03-01|141471"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4002582","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"}}