{"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":"0504774","name":"50-10 Aggregate Prep Plant"},"operator":{"type":"operator","id":"L11869","name":"ACA Products Inc"},"controller":{"type":"controller","id":"0133263","name":"Kenneth  Tunstall; Thomas Paul  Moltz; Eric  Moltz"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09147","name":"Vincent Paul  Moltz"},"object":{"type":"mine","id":"0504774","name":"50-10 Aggregate Prep Plant"},"validFrom":"1987-10-01","validTo":"2016-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|M09147|1987-10-01|2016-12-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11869","name":"ACA Products Inc"},"object":{"type":"mine","id":"0504774","name":"50-10 Aggregate Prep Plant"},"validFrom":"2003-11-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|L11869|2003-11-25|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09147","name":"Vincent Paul  Moltz"},"object":{"type":"operator","id":"L11869","name":"ACA Products Inc"},"validFrom":"2003-11-25","validTo":"2016-12-31","current":false,"derived":true,"evidenceMineId":"0504774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|L11869|2003-11-25|M09147|1987-10-01|145252"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0133263","name":"Thomas Paul  Moltz et al"},"object":{"type":"mine","id":"0504774","name":"50-10 Aggregate Prep Plant"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|0133263|2017-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0133263","name":"Thomas Paul  Moltz et al"},"object":{"type":"operator","id":"L11869","name":"ACA Products Inc"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|L11869|2003-11-25|0133263|2017-01-01|26782"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0133263","name":"Eric  Moltz et al"},"object":{"type":"operator","id":"L11869","name":"ACA Products Inc"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|L11869|2003-11-25|0133263|2017-01-01|26783"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0133263","name":"Kenneth  Tunstall et al"},"object":{"type":"operator","id":"L11869","name":"ACA Products Inc"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504774|L11869|2003-11-25|0133263|2017-01-01|26784"}}],"coverage":{"historyRecords":4,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0504774","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"}}