{"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":"2026-10-13T11:19:05.459773+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":"3304771","name":"Tow Path Products"},"operator":{"type":"operator","id":"L17498","name":"Tow Path Ready Mix"},"controller":{"type":"controller","id":"0121343","name":"Gerry  Salisbury; Mark  Salisbury; Denny  Salisbury"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M13349","name":"Thomas P  Salisbury et al"},"object":{"type":"mine","id":"3304771","name":"Tow Path Products"},"validFrom":"2000-06-01","validTo":"2014-11-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|M13349|2000-06-01|2014-11-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0121343","name":"Denny  Salisbury et al"},"object":{"type":"mine","id":"3304771","name":"Tow Path Products"},"validFrom":"2014-11-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|0121343|2014-11-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17498","name":"Tow Path Ready Mix"},"object":{"type":"mine","id":"3304771","name":"Tow Path Products"},"validFrom":"2022-03-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|L17498|2022-03-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0121343","name":"Denny  Salisbury et al"},"object":{"type":"operator","id":"L17498","name":"Tow Path Ready Mix"},"validFrom":"2022-03-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|L17498|2022-03-09|0121343|2014-11-30|23688"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0121343","name":"Mark  Salisbury et al"},"object":{"type":"operator","id":"L17498","name":"Tow Path Ready Mix"},"validFrom":"2022-03-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|L17498|2022-03-09|0121343|2014-11-30|23689"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0121343","name":"Gerry  Salisbury et al"},"object":{"type":"operator","id":"L17498","name":"Tow Path Ready Mix"},"validFrom":"2022-03-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304771","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|L17498|2022-03-09|0121343|2014-11-30|23690"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M13349","name":"Thomas P  Salisbury et al"},"object":{"type":"operator","id":"L17498","name":"Tow Path Ready Mix"},"validFrom":"2022-03-09","validTo":"2014-11-29","current":false,"derived":true,"evidenceMineId":"3304771","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304771|L17498|2022-03-09|M13349|2000-06-01|156057"}}],"coverage":{"historyRecords":4,"edgeCount":7,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3304771","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}