{"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":"0405561","name":"Bianchi Pit"},"operator":{"type":"operator","id":"0137496","name":"David Crye General Engineering and Contractor, Inc"},"controller":{"type":"controller","id":"0116971","name":"David E  Crye"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M40337","name":"Tim L  Winsor"},"object":{"type":"mine","id":"0405561","name":"Bianchi Pit"},"validFrom":"1987-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405561|M40337|1987-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L40337","name":"Winsor Construction Inc"},"object":{"type":"mine","id":"0405561","name":"Bianchi Pit"},"validFrom":"2003-06-03","validTo":"2015-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405561|L40337|2003-06-03|2015-03-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M40337","name":"Tim L  Winsor"},"object":{"type":"operator","id":"L40337","name":"Winsor Construction Inc"},"validFrom":"2003-06-03","validTo":"2015-03-01","current":false,"derived":true,"evidenceMineId":"0405561","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405561|L40337|2003-06-03|M40337|1987-12-01|170070"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0137496","name":"David Crye General Engineering and Contractor, Inc"},"object":{"type":"mine","id":"0405561","name":"Bianchi Pit"},"validFrom":"2015-03-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405561|0137496|2015-03-02|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0116971","name":"David E  Crye"},"object":{"type":"mine","id":"0405561","name":"Bianchi Pit"},"validFrom":"2015-03-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405561|0116971|2015-03-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0116971","name":"David E  Crye"},"object":{"type":"operator","id":"0137496","name":"David Crye General Engineering and Contractor, Inc"},"validFrom":"2015-03-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"0405561","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405561|0137496|2015-03-02|0116971|2015-03-02|22228"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0405561","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"}}