{"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":"1901121","name":"HARD ROCK PLANT #1"},"operator":{"type":"operator","id":"0161873","name":"ONDRICK PORTABLE CRUSHING & PAVING, LLC"},"controller":{"type":"controller","id":"0146001","name":"Theodore W  Ondrick; Adam J  Ondrick"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00919","name":"Theodore J  Ondrick"},"object":{"type":"mine","id":"1901121","name":"HARD ROCK PLANT #1"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|M00919|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01059","name":"TED ONDRICK COMPANY LLC"},"object":{"type":"mine","id":"1901121","name":"HARD ROCK PLANT #1"},"validFrom":"2003-01-01","validTo":"2019-02-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|L01059|2003-01-01|2019-02-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00919","name":"Theodore J  Ondrick"},"object":{"type":"operator","id":"L01059","name":"TED ONDRICK COMPANY LLC"},"validFrom":"2003-01-01","validTo":"2019-02-26","current":false,"derived":true,"evidenceMineId":"1901121","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|L01059|2003-01-01|M00919|1950-01-01|115940"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0161873","name":"ONDRICK PORTABLE CRUSHING & PAVING, LLC"},"object":{"type":"mine","id":"1901121","name":"HARD ROCK PLANT #1"},"validFrom":"2019-02-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|0161873|2019-02-27|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0146001","name":"Theodore W  Ondrick et al"},"object":{"type":"mine","id":"1901121","name":"HARD ROCK PLANT #1"},"validFrom":"2019-02-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|0146001|2019-02-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146001","name":"Theodore W  Ondrick et al"},"object":{"type":"operator","id":"0161873","name":"ONDRICK PORTABLE CRUSHING & PAVING, LLC"},"validFrom":"2019-02-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"1901121","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|0161873|2019-02-27|0146001|2019-02-27|29903"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146001","name":"Adam J  Ondrick et al"},"object":{"type":"operator","id":"0161873","name":"ONDRICK PORTABLE CRUSHING & PAVING, LLC"},"validFrom":"2019-02-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"1901121","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1901121|0161873|2019-02-27|0146001|2019-02-27|29904"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1901121","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"}}