{"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":"4103388","name":"Brookshire Plant"},"operator":{"type":"operator","id":"L10070","name":"Bryco Inc"},"controller":{"type":"controller","id":"M02063","name":"Lafarge S A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08514","name":"Bryco Inc"},"object":{"type":"mine","id":"4103388","name":"Brookshire Plant"},"validFrom":"1986-03-01","validTo":"1987-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103388|L08514|1986-03-01|1987-12-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06290","name":"Butler Industries"},"object":{"type":"mine","id":"4103388","name":"Brookshire Plant"},"validFrom":"1986-03-01","validTo":"1987-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103388|M06290|1986-03-01|1987-12-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06290","name":"Butler Industries"},"object":{"type":"operator","id":"L08514","name":"Bryco Inc"},"validFrom":"1986-03-01","validTo":"1987-12-08","current":false,"derived":true,"evidenceMineId":"4103388","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103388|L08514|1986-03-01|M06290|1986-03-01|138082"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10070","name":"Bryco Inc"},"object":{"type":"mine","id":"4103388","name":"Brookshire Plant"},"validFrom":"1987-12-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103388|L10070|1987-12-09|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"mine","id":"4103388","name":"Brookshire Plant"},"validFrom":"1987-12-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103388|M02063|1987-12-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"operator","id":"L10070","name":"Bryco Inc"},"validFrom":"1987-12-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"4103388","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103388|L10070|1987-12-09|M02063|1987-12-09|123275"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4103388","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"}}