{"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":"2003122","name":"Morse Lake Pit"},"operator":{"type":"operator","id":"0187293","name":"Great Lakes Excavating Services"},"controller":{"type":"controller","id":"0174720","name":"Curtis Patrick Moran Jr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07435","name":"James P  Sturrus"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"1998-05-01","validTo":"2019-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|M07435|1998-05-01|2019-04-30"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16543","name":"Morse Lake Sand & Gravel, Inc."},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"1999-06-01","validTo":"2009-04-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L16543|1999-06-01|2009-04-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12659","name":"Michael R  Slachter et al"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"1999-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|M12659|1999-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12659","name":"Michael R  Slachter et al"},"object":{"type":"operator","id":"L16543","name":"Morse Lake Sand & Gravel, Inc."},"validFrom":"1999-06-01","validTo":"2009-04-09","current":false,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L16543|1999-06-01|M12659|1999-06-01|154257"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0099685","name":"Coldwater Sand & Gravel"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"2009-04-10","validTo":"2016-06-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0099685|2009-04-10|2016-06-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0084053","name":"Mark S  Velting"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"2009-04-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0084053|2009-04-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0084053","name":"Mark S  Velting"},"object":{"type":"operator","id":"0099685","name":"Coldwater Sand & Gravel"},"validFrom":"2009-04-10","validTo":"2016-06-05","current":false,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0099685|2009-04-10|0084053|2009-04-10|13306"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15888","name":"High Grade Materials Co"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"2016-06-06","validTo":"2024-03-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L15888|2016-06-06|2024-03-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07435","name":"James P  Sturrus"},"object":{"type":"operator","id":"L15888","name":"High Grade Materials Co"},"validFrom":"2016-06-06","validTo":"2019-04-30","current":false,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L15888|2016-06-06|M07435|1998-05-01|141277"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0147701","name":"James  Sturrus Jr et al"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"2019-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0147701|2019-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147701","name":"James  Sturrus Jr et al"},"object":{"type":"operator","id":"L15888","name":"High Grade Materials Co"},"validFrom":"2019-05-01","validTo":"2024-03-04","current":false,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L15888|2016-06-06|0147701|2019-05-01|30260"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147701","name":"Amber  Hoover et al"},"object":{"type":"operator","id":"L15888","name":"High Grade Materials Co"},"validFrom":"2019-05-01","validTo":"2024-03-04","current":false,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L15888|2016-06-06|0147701|2019-05-01|30261"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147701","name":"Amy  Watson et al"},"object":{"type":"operator","id":"L15888","name":"High Grade Materials Co"},"validFrom":"2019-05-01","validTo":"2024-03-04","current":false,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|L15888|2016-06-06|0147701|2019-05-01|30262"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0174720","name":"Curtis Patrick Moran Jr"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"2023-01-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0174720|2023-01-16|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0187293","name":"Great Lakes Excavating Services"},"object":{"type":"mine","id":"2003122","name":"Morse Lake Pit"},"validFrom":"2024-03-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0187293|2024-03-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0174720","name":"Curtis Patrick Moran Jr"},"object":{"type":"operator","id":"0187293","name":"Great Lakes Excavating Services"},"validFrom":"2024-03-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003122|0187293|2024-03-05|0174720|2023-01-16|37164"}}],"coverage":{"historyRecords":7,"edgeCount":16,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2003122","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"}}