{"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":"2402256","name":"Fossum Materials Wash Plant"},"operator":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"controller":{"type":"controller","id":"0175580","name":"Aaron  Golik; Tracy  Golik"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M31679","name":"Jack  Morgenstern et al"},"object":{"type":"mine","id":"2402256","name":"Fossum Materials Wash Plant"},"validFrom":"1997-10-01","validTo":"2015-08-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|M31679|1997-10-01|2015-08-04"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"object":{"type":"mine","id":"2402256","name":"Fossum Materials Wash Plant"},"validFrom":"2002-01-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M31679","name":"Jack  Morgenstern et al"},"object":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"validFrom":"2002-01-03","validTo":"2015-08-04","current":false,"derived":true,"evidenceMineId":"2402256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|M31679|1997-10-01|160009"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119081","name":"Tim  Robertson"},"object":{"type":"mine","id":"2402256","name":"Fossum Materials Wash Plant"},"validFrom":"2015-08-05","validTo":"2022-03-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|0119081|2015-08-05|2022-03-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119081","name":"Tim  Robertson"},"object":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"validFrom":"2015-08-05","validTo":"2022-03-21","current":false,"derived":true,"evidenceMineId":"2402256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|0119081|2015-08-05|22785"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0167781","name":"Tim  Robertson et al"},"object":{"type":"mine","id":"2402256","name":"Fossum Materials Wash Plant"},"validFrom":"2022-03-22","validTo":"2023-03-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|0167781|2022-03-22|2023-03-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0167781","name":"Tim  Robertson et al"},"object":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"validFrom":"2022-03-22","validTo":"2023-03-14","current":false,"derived":true,"evidenceMineId":"2402256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|0167781|2022-03-22|35360"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0167781","name":"Aaron  Golik et al"},"object":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"validFrom":"2022-03-22","validTo":"2023-03-14","current":false,"derived":true,"evidenceMineId":"2402256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|0167781|2022-03-22|35361"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0175580","name":"Tracy  Golik et al"},"object":{"type":"mine","id":"2402256","name":"Fossum Materials Wash Plant"},"validFrom":"2023-03-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|0175580|2023-03-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0175580","name":"Tracy  Golik et al"},"object":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"validFrom":"2023-03-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"2402256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|0175580|2023-03-15|37435"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0175580","name":"Aaron  Golik et al"},"object":{"type":"operator","id":"L15598","name":"Century Companies Inc dba Century Construction"},"validFrom":"2023-03-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"2402256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402256|L15598|2002-01-03|0175580|2023-03-15|37436"}}],"coverage":{"historyRecords":6,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2402256","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"}}