{"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":"2026-10-18T09:31:49.615908+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":"1302408","name":"Mohr Sand & Gravel PWP #1"},"operator":{"type":"operator","id":"0139834","name":"Mohr Sand, Gravel & Construction L.L.C."},"controller":{"type":"controller","id":"0096653","name":"Jared W  Mohr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0114045","name":"Mohr Excavating"},"object":{"type":"mine","id":"1302408","name":"Mohr Sand & Gravel PWP #1"},"validFrom":"2010-09-28","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0114045|2010-09-28|2015-07-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0096653","name":"Jared W  Mohr"},"object":{"type":"mine","id":"1302408","name":"Mohr Sand & Gravel PWP #1"},"validFrom":"2010-09-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0096653|2010-09-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0096653","name":"Jared W  Mohr"},"object":{"type":"operator","id":"0114045","name":"Mohr Excavating"},"validFrom":"2010-09-28","validTo":"2015-07-09","current":false,"derived":true,"evidenceMineId":"1302408","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0114045|2010-09-28|0096653|2010-09-28|15884"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0139834","name":"Mohr Sand, Gravel & Construction L.L.C."},"object":{"type":"mine","id":"1302408","name":"Mohr Sand & Gravel PWP #1"},"validFrom":"2015-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0139834|2015-07-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0118961","name":"Tami L  Mohr et al"},"object":{"type":"mine","id":"1302408","name":"Mohr Sand & Gravel PWP #1"},"validFrom":"2015-07-10","validTo":"2016-07-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0118961|2015-07-10|2016-07-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0118961","name":"Tami L  Mohr et al"},"object":{"type":"operator","id":"0139834","name":"Mohr Sand, Gravel & Construction L.L.C."},"validFrom":"2015-07-10","validTo":"2016-07-28","current":false,"derived":true,"evidenceMineId":"1302408","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0139834|2015-07-10|0118961|2015-07-10|22769"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0118961","name":"Jared W Mohr et al"},"object":{"type":"operator","id":"0139834","name":"Mohr Sand, Gravel & Construction L.L.C."},"validFrom":"2015-07-10","validTo":"2016-07-28","current":false,"derived":true,"evidenceMineId":"1302408","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0139834|2015-07-10|0118961|2015-07-10|22770"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0096653","name":"Jared W  Mohr"},"object":{"type":"mine","id":"1302408","name":"Mohr Sand & Gravel PWP #1"},"validFrom":"2016-07-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0096653|2016-07-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0096653","name":"Jared W  Mohr"},"object":{"type":"operator","id":"0139834","name":"Mohr Sand, Gravel & Construction L.L.C."},"validFrom":"2016-07-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"1302408","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1302408|0139834|2015-07-10|0096653|2016-07-29|15885"}}],"coverage":{"historyRecords":4,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1302408","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}