{"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":"0402298","name":"Industrial Rock Products"},"operator":{"type":"operator","id":"L08245","name":"Custom Mining Company"},"controller":{"type":"controller","id":"M06562","name":"Hartley D A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00992","name":"Industrial Rock Products"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"validFrom":"1950-01-01","validTo":"1980-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L00992|1950-01-01|1980-04-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00852","name":"Anderson Robert P"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"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":"0402298|M00852|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00852","name":"Anderson Robert P"},"object":{"type":"operator","id":"L00992","name":"Industrial Rock Products"},"validFrom":"1950-01-01","validTo":"1980-04-30","current":false,"derived":true,"evidenceMineId":"0402298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L00992|1950-01-01|M00852|1950-01-01|115392"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04002","name":"Industrial Sacking Service"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"validFrom":"1980-05-01","validTo":"1982-11-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L04002|1980-05-01|1982-11-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03206","name":"Carter Sheldon H"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"validFrom":"1980-05-01","validTo":"1982-11-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|M03206|1980-05-01|1982-11-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03206","name":"Carter Sheldon H"},"object":{"type":"operator","id":"L04002","name":"Industrial Sacking Service"},"validFrom":"1980-05-01","validTo":"1982-11-03","current":false,"derived":true,"evidenceMineId":"0402298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L04002|1980-05-01|M03206|1980-05-01|128482"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00992","name":"Industrial Rock Products"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"validFrom":"1982-11-04","validTo":"1985-03-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L00992|1982-11-04|1985-03-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00852","name":"Anderson Robert P"},"object":{"type":"operator","id":"L00992","name":"Industrial Rock Products"},"validFrom":"1982-11-04","validTo":"1985-03-10","current":false,"derived":true,"evidenceMineId":"0402298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L00992|1982-11-04|M00852|1950-01-01|115393"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08245","name":"Custom Mining Company"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"validFrom":"1985-03-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L08245|1985-03-11|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06562","name":"Hartley D A"},"object":{"type":"mine","id":"0402298","name":"Industrial Rock Products"},"validFrom":"1985-03-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|M06562|1985-03-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06562","name":"Hartley D A"},"object":{"type":"operator","id":"L08245","name":"Custom Mining Company"},"validFrom":"1985-03-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"0402298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0402298|L08245|1985-03-11|M06562|1985-03-11|138820"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0402298","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"}}