{"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":"0301785","name":"Ibison Stone Supply Inc"},"operator":{"type":"operator","id":"L18562","name":"Ibison Stone Supply Inc"},"controller":{"type":"controller","id":"M12496","name":"Mark S  Ibison"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15214","name":"Slim's Stone"},"object":{"type":"mine","id":"0301785","name":"Ibison Stone Supply Inc"},"validFrom":"1997-06-01","validTo":"2024-02-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0301785|L15214|1997-06-01|2024-02-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11597","name":"Jane  Gossett"},"object":{"type":"mine","id":"0301785","name":"Ibison Stone Supply Inc"},"validFrom":"1997-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0301785|M11597|1997-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11597","name":"Jane  Gossett"},"object":{"type":"operator","id":"L15214","name":"Slim's Stone"},"validFrom":"1997-06-01","validTo":"2024-02-15","current":false,"derived":true,"evidenceMineId":"0301785","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0301785|L15214|1997-06-01|M11597|1997-06-01|151855"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12496","name":"Mark S  Ibison"},"object":{"type":"mine","id":"0301785","name":"Ibison Stone Supply Inc"},"validFrom":"1999-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0301785|M12496|1999-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18562","name":"Ibison Stone Supply Inc"},"object":{"type":"mine","id":"0301785","name":"Ibison Stone Supply Inc"},"validFrom":"2024-02-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0301785|L18562|2024-02-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12496","name":"Mark S  Ibison"},"object":{"type":"operator","id":"L18562","name":"Ibison Stone Supply Inc"},"validFrom":"2024-02-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"0301785","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0301785|L18562|2024-02-16|M12496|1999-07-01|153929"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0301785","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"}}