{"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":"2026-10-17T05:35:58.500035+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":"0201565","name":"Twin Buttes-#1 Adit"},"operator":{"type":"operator","id":"L00156","name":"Anamax Mining Company"},"controller":{"type":"controller","id":"M00138","name":"Amax Arizona Inc-Anaconda Arizona Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00138","name":"Amax Arizona Inc-Anaconda Arizona Inc Et Al"},"object":{"type":"mine","id":"0201565","name":"Twin Buttes-#1 Adit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201565|M00138|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01559","name":"Cementation Company Of America Inc"},"object":{"type":"mine","id":"0201565","name":"Twin Buttes-#1 Adit"},"validFrom":"1950-01-01","validTo":"1981-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201565|L01559|1950-01-01|1981-04-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02180","name":"Cementation Company Of America Inc"},"object":{"type":"mine","id":"0201565","name":"Twin Buttes-#1 Adit"},"validFrom":"1950-01-01","validTo":"1981-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201565|M02180|1950-01-01|1981-04-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02180","name":"Cementation Company Of America Inc"},"object":{"type":"operator","id":"L01559","name":"Cementation Company Of America Inc"},"validFrom":"1950-01-01","validTo":"1981-04-29","current":false,"derived":true,"evidenceMineId":"0201565","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201565|L01559|1950-01-01|M02180|1950-01-01|124236"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00156","name":"Anamax Mining Company"},"object":{"type":"mine","id":"0201565","name":"Twin Buttes-#1 Adit"},"validFrom":"1981-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201565|L00156|1981-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00138","name":"Amax Arizona Inc-Anaconda Arizona Inc Et Al"},"object":{"type":"operator","id":"L00156","name":"Anamax Mining Company"},"validFrom":"1981-04-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"0201565","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201565|L00156|1981-04-30|M00138|1950-01-01|105060"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0201565","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}