{"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":"0404602","name":"Makayla"},"operator":{"type":"operator","id":"0131593","name":"Global Pumice, LLC"},"controller":{"type":"controller","id":"0111901","name":"Garrett  Petelski; Thomas  Hrubik"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06366","name":"Cal Pumice Inc"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"1982-07-01","validTo":"1985-12-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|L06366|1982-07-01|1985-12-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05068","name":"Edward  Scharf"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"1982-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|M05068|1982-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05068","name":"Edward  Scharf"},"object":{"type":"operator","id":"L06366","name":"Cal Pumice Inc"},"validFrom":"1982-07-01","validTo":"1985-12-14","current":false,"derived":true,"evidenceMineId":"0404602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|L06366|1982-07-01|M05068|1982-07-01|133584"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08679","name":"California Lightweight Partnership"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"1985-12-15","validTo":"1987-07-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|L08679|1985-12-15|1987-07-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06874","name":"Ca Lightweight Products Inc  et al"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"1985-12-15","validTo":"1987-07-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|M06874|1985-12-15|1987-07-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06874","name":"Ca Lightweight Products Inc  et al"},"object":{"type":"operator","id":"L08679","name":"California Lightweight Partnership"},"validFrom":"1985-12-15","validTo":"1987-07-12","current":false,"derived":true,"evidenceMineId":"0404602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|L08679|1985-12-15|M06874|1985-12-15|139564"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09715","name":"California Lightweight Pumice Inc"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"1987-07-13","validTo":"2014-10-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|L09715|1987-07-13|2014-10-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07609","name":"L Kenneth  Teel"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"1987-07-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|M07609|1987-07-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07609","name":"L Kenneth  Teel"},"object":{"type":"operator","id":"L09715","name":"California Lightweight Pumice Inc"},"validFrom":"1987-07-13","validTo":"2014-10-08","current":false,"derived":true,"evidenceMineId":"0404602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|L09715|1987-07-13|M07609|1987-07-13|141605"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0111901","name":"Thomas  Hrubik et al"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"2014-02-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|0111901|2014-02-03|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0131593","name":"Global Pumice, LLC"},"object":{"type":"mine","id":"0404602","name":"Makayla"},"validFrom":"2014-10-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|0131593|2014-10-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0111901","name":"Thomas  Hrubik et al"},"object":{"type":"operator","id":"0131593","name":"Global Pumice, LLC"},"validFrom":"2014-10-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"0404602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|0131593|2014-10-09|0111901|2014-02-03|20686"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0111901","name":"Garrett  Petelski et al"},"object":{"type":"operator","id":"0131593","name":"Global Pumice, LLC"},"validFrom":"2014-10-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"0404602","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404602|0131593|2014-10-09|0111901|2014-02-03|20687"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0404602","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"}}