{"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":"4701111","name":"Portable Unit #1"},"operator":{"type":"operator","id":"L00393","name":"Bjoin Limestone Inc"},"controller":{"type":"controller","id":"0129421","name":"Kristopher P  Bjoin; Shaun M  Bjoin; Jonathan M  Bjoin"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00327","name":"Kathleen M  Bjoin et al"},"object":{"type":"mine","id":"4701111","name":"Portable Unit #1"},"validFrom":"1950-01-01","validTo":"2014-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|M00327|1950-01-01|2014-04-30"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02319","name":"Onsgard Limestone"},"object":{"type":"mine","id":"4701111","name":"Portable Unit #1"},"validFrom":"1950-01-01","validTo":"1978-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L02319|1950-01-01|1978-06-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02039","name":"Onsgard Limestone"},"object":{"type":"mine","id":"4701111","name":"Portable Unit #1"},"validFrom":"1950-01-01","validTo":"1978-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|M02039|1950-01-01|1978-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02039","name":"Onsgard Limestone"},"object":{"type":"operator","id":"L02319","name":"Onsgard Limestone"},"validFrom":"1950-01-01","validTo":"1978-06-30","current":false,"derived":true,"evidenceMineId":"4701111","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L02319|1950-01-01|M02039|1950-01-01|122729"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00393","name":"Bjoin Limestone Inc"},"object":{"type":"mine","id":"4701111","name":"Portable Unit #1"},"validFrom":"1978-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L00393|1978-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00327","name":"Kathleen M  Bjoin et al"},"object":{"type":"operator","id":"L00393","name":"Bjoin Limestone Inc"},"validFrom":"1978-07-01","validTo":"2014-04-30","current":false,"derived":true,"evidenceMineId":"4701111","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L00393|1978-07-01|M00327|1950-01-01|109446"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0129421","name":"Shaun M  Bjoin"},"object":{"type":"mine","id":"4701111","name":"Portable Unit #1"},"validFrom":"2014-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|0129421|2014-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0129421","name":"Shaun M  Bjoin"},"object":{"type":"operator","id":"L00393","name":"Bjoin Limestone Inc"},"validFrom":"2014-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4701111","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L00393|1978-07-01|0129421|2014-05-01|25951"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0129421","name":"Kristopher P  Bjoin"},"object":{"type":"operator","id":"L00393","name":"Bjoin Limestone Inc"},"validFrom":"2014-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4701111","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L00393|1978-07-01|0129421|2014-05-01|25952"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0129421","name":"Jonathan M  Bjoin"},"object":{"type":"operator","id":"L00393","name":"Bjoin Limestone Inc"},"validFrom":"2014-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4701111","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701111|L00393|1978-07-01|0129421|2014-05-01|25953"}}],"coverage":{"historyRecords":5,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4701111","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"}}