{"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":"3609174","name":"#4 North"},"operator":{"type":"operator","id":"0173993","name":"DH Manufacturing LLC"},"controller":{"type":"controller","id":"0158961","name":"Devin  Hollenbeck"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051907","name":"Mahlon A. Winkleblech"},"object":{"type":"mine","id":"3609174","name":"#4 North"},"validFrom":"2003-10-23","validTo":"2018-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0051907|2003-10-23|2018-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042653","name":"Mahlon A  Winkleblech"},"object":{"type":"mine","id":"3609174","name":"#4 North"},"validFrom":"2003-10-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0042653|2003-10-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042653","name":"Mahlon A  Winkleblech"},"object":{"type":"operator","id":"0051907","name":"Mahlon A. Winkleblech"},"validFrom":"2003-10-23","validTo":"2018-09-30","current":false,"derived":true,"evidenceMineId":"3609174","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0051907|2003-10-23|0042653|2003-10-23|4144"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0160053","name":"Catlin Hill Stone, Inc."},"object":{"type":"mine","id":"3609174","name":"#4 North"},"validFrom":"2018-10-01","validTo":"2020-12-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0160053|2018-10-01|2020-12-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0144301","name":"Scott  Adams et al"},"object":{"type":"mine","id":"3609174","name":"#4 North"},"validFrom":"2018-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0144301|2018-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144301","name":"Scott  Adams et al"},"object":{"type":"operator","id":"0160053","name":"Catlin Hill Stone, Inc."},"validFrom":"2018-10-01","validTo":"2020-12-18","current":false,"derived":true,"evidenceMineId":"3609174","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0160053|2018-10-01|0144301|2018-10-01|29415"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144301","name":"Chad H  Hollenbeck et al"},"object":{"type":"operator","id":"0160053","name":"Catlin Hill Stone, Inc."},"validFrom":"2018-10-01","validTo":"2020-12-18","current":false,"derived":true,"evidenceMineId":"3609174","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0160053|2018-10-01|0144301|2018-10-01|29416"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0158961","name":"Devin  Hollenbeck"},"object":{"type":"mine","id":"3609174","name":"#4 North"},"validFrom":"2020-11-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0158961|2020-11-22|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0173993","name":"DH Manufacturing LLC"},"object":{"type":"mine","id":"3609174","name":"#4 North"},"validFrom":"2020-12-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0173993|2020-12-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0158961","name":"Devin  Hollenbeck"},"object":{"type":"operator","id":"0173993","name":"DH Manufacturing LLC"},"validFrom":"2020-12-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609174","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3609174|0173993|2020-12-19|0158961|2020-11-22|33036"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609174","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"}}