{"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":"4200884","name":"Bauer Pit"},"operator":{"type":"operator","id":"0050765","name":"Staker & Parson Companies"},"controller":{"type":"controller","id":"M06183","name":"CRH PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L33046","name":"England Construction Inc"},"object":{"type":"mine","id":"4200884","name":"Bauer Pit"},"validFrom":"1950-01-01","validTo":"2000-01-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|L33046|1950-01-01|2000-01-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M33046","name":"E Gary  England"},"object":{"type":"mine","id":"4200884","name":"Bauer Pit"},"validFrom":"1950-01-01","validTo":"2000-01-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|M33046|1950-01-01|2000-01-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M33046","name":"E Gary  England"},"object":{"type":"operator","id":"L33046","name":"England Construction Inc"},"validFrom":"1950-01-01","validTo":"2000-01-28","current":false,"derived":true,"evidenceMineId":"4200884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|L33046|1950-01-01|M33046|1950-01-01|161593"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"4200884","name":"Bauer Pit"},"validFrom":"1996-05-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|M06183|1996-05-03|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14623","name":"Jack B Parson Companies"},"object":{"type":"mine","id":"4200884","name":"Bauer Pit"},"validFrom":"2000-01-29","validTo":"2002-12-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|L14623|2000-01-29|2002-12-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L14623","name":"Jack B Parson Companies"},"validFrom":"2000-01-29","validTo":"2002-12-03","current":false,"derived":true,"evidenceMineId":"4200884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|L14623|2000-01-29|M06183|1996-05-03|136658"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"4200884","name":"Bauer Pit"},"validFrom":"2002-05-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|M06183|2002-05-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050765","name":"Staker & Parson Companies"},"object":{"type":"mine","id":"4200884","name":"Bauer Pit"},"validFrom":"2002-12-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|0050765|2002-12-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"0050765","name":"Staker & Parson Companies"},"validFrom":"2002-12-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4200884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4200884|0050765|2002-12-04|M06183|2002-05-30|137008"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4200884","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"}}