{"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":"4102239","name":"Metro Stone"},"operator":{"type":"operator","id":"L07655","name":"Metro Stone Company"},"controller":{"type":"controller","id":"M06080","name":"Joe  Mc Clellan"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06629","name":"Redding Stone Company"},"object":{"type":"mine","id":"4102239","name":"Metro Stone"},"validFrom":"1950-01-01","validTo":"1983-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|L06629|1950-01-01|1983-07-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05282","name":"Redding James R"},"object":{"type":"mine","id":"4102239","name":"Metro Stone"},"validFrom":"1950-01-01","validTo":"1983-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|M05282|1950-01-01|1983-07-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05282","name":"Redding James R"},"object":{"type":"operator","id":"L06629","name":"Redding Stone Company"},"validFrom":"1950-01-01","validTo":"1983-07-25","current":false,"derived":true,"evidenceMineId":"4102239","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|L06629|1950-01-01|M05282|1950-01-01|134114"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06080","name":"Joe  Mc Clellan"},"object":{"type":"mine","id":"4102239","name":"Metro Stone"},"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":"4102239|M06080|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06628","name":"Metro Stone Company"},"object":{"type":"mine","id":"4102239","name":"Metro Stone"},"validFrom":"1983-07-26","validTo":"1984-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|L06628|1983-07-26|1984-11-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05281","name":"Hines Lucien & Billy W Sportsman"},"object":{"type":"mine","id":"4102239","name":"Metro Stone"},"validFrom":"1983-07-26","validTo":"1985-11-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|M05281|1983-07-26|1985-11-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05281","name":"Hines Lucien & Billy W Sportsman"},"object":{"type":"operator","id":"L06628","name":"Metro Stone Company"},"validFrom":"1983-07-26","validTo":"1984-11-07","current":false,"derived":true,"evidenceMineId":"4102239","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|L06628|1983-07-26|M05281|1983-07-26|134112"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07655","name":"Metro Stone Company"},"object":{"type":"mine","id":"4102239","name":"Metro Stone"},"validFrom":"1984-11-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|L07655|1984-11-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06080","name":"Joe  Mc Clellan"},"object":{"type":"operator","id":"L07655","name":"Metro Stone Company"},"validFrom":"1984-11-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4102239","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4102239|L07655|1984-11-08|M06080|1950-01-01|136200"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4102239","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"}}