{"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":"2026-10-18T09:31:49.615908+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":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"operator":{"type":"operator","id":"L18567","name":"TOWN OF HECTOR"},"controller":{"type":"controller","id":"M14290","name":"Town Of Burdett-NY"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03346","name":"Dale A Reynolds Excavating"},"object":{"type":"mine","id":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"validFrom":"1950-01-01","validTo":"1979-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|L03346|1950-01-01|1979-04-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02679","name":"Reynolds Dale A & Kenneth Appel"},"object":{"type":"mine","id":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"validFrom":"1950-01-01","validTo":"1979-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|M02679|1950-01-01|1979-04-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02679","name":"Reynolds Dale A & Kenneth Appel"},"object":{"type":"operator","id":"L03346","name":"Dale A Reynolds Excavating"},"validFrom":"1950-01-01","validTo":"1979-04-30","current":false,"derived":true,"evidenceMineId":"3002045","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|L03346|1950-01-01|M02679|1950-01-01|126625"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03347","name":"Tall Gravel Products Inc"},"object":{"type":"mine","id":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"validFrom":"1979-05-01","validTo":"2001-05-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|L03347|1979-05-01|2001-05-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02680","name":"Templar Roger"},"object":{"type":"mine","id":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"validFrom":"1979-05-01","validTo":"2001-05-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|M02680|1979-05-01|2001-05-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02680","name":"Templar Roger"},"object":{"type":"operator","id":"L03347","name":"Tall Gravel Products Inc"},"validFrom":"1979-05-01","validTo":"2001-05-23","current":false,"derived":true,"evidenceMineId":"3002045","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|L03347|1979-05-01|M02680|1979-05-01|126626"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18567","name":"Town Of Hector"},"object":{"type":"mine","id":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"validFrom":"2001-05-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|L18567|2001-05-24|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M14290","name":"Town Of Burdett-NY"},"object":{"type":"mine","id":"3002045","name":"PORTEC KOLBERG #1130-50  S#488411305084"},"validFrom":"2001-05-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|M14290|2001-05-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M14290","name":"Town Of Burdett-NY"},"object":{"type":"operator","id":"L18567","name":"Town Of Hector"},"validFrom":"2001-05-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"3002045","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3002045|L18567|2001-05-24|M14290|2001-05-24|157870"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3002045","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}