{"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":"2700053","name":"Cold River Materials Walpole Quarry"},"operator":{"type":"operator","id":"0161193","name":"Eurovia Altantic Coast LLC"},"controller":{"type":"controller","id":"0145321","name":"VINCI Group"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"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":"2700053|M00042|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00579","name":"Frank W Whitcomb Construction Corp"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"validFrom":"1950-01-01","validTo":"1997-03-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|L00579|1950-01-01|1997-03-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00491","name":"Frank  Whitcomb"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"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":"2700053|M00491|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00491","name":"Frank  Whitcomb"},"object":{"type":"operator","id":"L00579","name":"Frank W Whitcomb Construction Corp"},"validFrom":"1950-01-01","validTo":"1997-03-30","current":false,"derived":true,"evidenceMineId":"2700053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|L00579|1950-01-01|M00491|1950-01-01|111794"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15135","name":"Cold River Materials-Div/Lane Construction Corp"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"validFrom":"1997-03-31","validTo":"2001-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|L15135|1997-03-31|2001-08-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"validFrom":"1997-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|M00042|1997-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"object":{"type":"operator","id":"L15135","name":"Cold River Materials-Div/Lane Construction Corp"},"validFrom":"1997-03-31","validTo":"2001-08-31","current":false,"derived":true,"evidenceMineId":"2700053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|L15135|1997-03-31|M00042|1997-03-31|102472"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00092","name":"Lane Construction Corporation"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"validFrom":"2001-09-01","validTo":"2018-12-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|L00092|2001-09-01|2018-12-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00042","name":"Lane Industries Inc"},"object":{"type":"operator","id":"L00092","name":"Lane Construction Corporation"},"validFrom":"2001-09-01","validTo":"2018-12-11","current":false,"derived":true,"evidenceMineId":"2700053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|L00092|2001-09-01|M00042|1950-01-01|102457"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0161193","name":"Eurovia Altantic Coast LLC"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"validFrom":"2018-12-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|0161193|2018-12-12|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0145321","name":"VINCI Group"},"object":{"type":"mine","id":"2700053","name":"Cold River Materials Walpole Quarry"},"validFrom":"2018-12-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|0145321|2018-12-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0145321","name":"VINCI Group"},"object":{"type":"operator","id":"0161193","name":"Eurovia Altantic Coast LLC"},"validFrom":"2018-12-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"2700053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700053|0161193|2018-12-12|0145321|2018-12-12|29749"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2700053","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"}}