{"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":"1700511","name":"PORTABLE MILL"},"operator":{"type":"operator","id":"L08324","name":"Sunrise Materials-Div/Lane Construction Corp"},"controller":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01439","name":"James G  Sargent"},"object":{"type":"mine","id":"1700511","name":"PORTABLE MILL"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|M01439|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01607","name":"H E Sargent Inc"},"object":{"type":"mine","id":"1700511","name":"PORTABLE MILL"},"validFrom":"1980-05-01","validTo":"1987-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|L01607|1980-05-01|1987-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01439","name":"James G  Sargent"},"object":{"type":"operator","id":"L01607","name":"H E Sargent Inc"},"validFrom":"1980-05-01","validTo":"1987-12-31","current":false,"derived":true,"evidenceMineId":"1700511","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|L01607|1980-05-01|M01439|1950-01-01|118651"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12593","name":"H E Sargent Inc"},"object":{"type":"mine","id":"1700511","name":"PORTABLE MILL"},"validFrom":"1988-01-01","validTo":"1994-08-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|L12593|1988-01-01|1994-08-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09650","name":"BILFINGER BERGER AG"},"object":{"type":"mine","id":"1700511","name":"PORTABLE MILL"},"validFrom":"1988-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|M09650|1988-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09650","name":"BILFINGER BERGER AG"},"object":{"type":"operator","id":"L12593","name":"H E Sargent Inc"},"validFrom":"1988-01-01","validTo":"1994-08-07","current":false,"derived":true,"evidenceMineId":"1700511","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|L12593|1988-01-01|M09650|1988-01-01|146876"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08324","name":"Sunrise Materials-Div/Lane Construction Corp"},"object":{"type":"mine","id":"1700511","name":"PORTABLE MILL"},"validFrom":"1994-08-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|L08324|1994-08-08|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"object":{"type":"mine","id":"1700511","name":"PORTABLE MILL"},"validFrom":"1994-08-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|M00042|1994-08-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"object":{"type":"operator","id":"L08324","name":"Sunrise Materials-Div/Lane Construction Corp"},"validFrom":"1994-08-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1700511","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700511|L08324|1994-08-08|M00042|1994-08-08|102471"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1700511","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"}}