{"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":"2026-10-18T09:31:49.615908+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":"0504438","name":"PRIDE OF AMERICA MINE"},"operator":{"type":"operator","id":"0078603","name":"COLORADO STONE QUARRIES, INC."},"controller":{"type":"controller","id":"0109203","name":"R. E. D. Graniti S.p.a."},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L32000","name":"Colorado Yule Marble Company"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"1990-06-01","validTo":"1998-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|L32000|1990-06-01|1998-06-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M32000","name":"Greg J  Faith"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"1990-06-01","validTo":"1998-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|M32000|1990-06-01|1998-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M32000","name":"Greg J  Faith"},"object":{"type":"operator","id":"L32000","name":"Colorado Yule Marble Company"},"validFrom":"1990-06-01","validTo":"1998-06-30","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|L32000|1990-06-01|M32000|1990-06-01|160410"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16689","name":"Colorado Yule Marble Company"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"1998-07-01","validTo":"1999-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|L16689|1998-07-01|1999-02-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12756","name":"Peter  Carroll"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"1998-07-01","validTo":"1999-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|M12756|1998-07-01|1999-02-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12756","name":"Peter  Carroll"},"object":{"type":"operator","id":"L16689","name":"Colorado Yule Marble Company"},"validFrom":"1998-07-01","validTo":"1999-02-28","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|L16689|1998-07-01|M12756|1998-07-01|154502"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16770","name":"Sierra Minerals Corp"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"1999-03-01","validTo":"2004-04-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|L16770|1999-03-01|2004-04-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12810","name":"Rex E  Loesby"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"1999-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|M12810|1999-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12810","name":"Rex E  Loesby"},"object":{"type":"operator","id":"L16770","name":"Sierra Minerals Corp"},"validFrom":"1999-03-01","validTo":"2004-04-25","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|L16770|1999-03-01|M12810|1999-03-01|154610"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2003-08-05","validTo":"2023-08-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|M12431|2003-08-05|2023-08-09"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051842","name":"Georgia Marble"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2004-04-26","validTo":"2006-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0051842|2004-04-26|2006-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"operator","id":"0051842","name":"Georgia Marble"},"validFrom":"2004-04-26","validTo":"2006-07-09","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0051842|2004-04-26|M12431|2003-08-05|153722"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0078603","name":"Colorado Stone Quarries, Inc."},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2006-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0078603|2006-07-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2006-07-10","validTo":"2010-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|M12431|2006-07-10|2010-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"operator","id":"0078603","name":"Colorado Stone Quarries, Inc."},"validFrom":"2006-07-10","validTo":"2010-10-31","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0078603|2006-07-10|M12431|2006-07-10|153724"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0097613","name":"Enrico L  Luciani"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2010-11-01","validTo":"2013-06-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0097613|2010-11-01|2013-06-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0097613","name":"Enrico L  Luciani"},"object":{"type":"operator","id":"0078603","name":"Colorado Stone Quarries, Inc."},"validFrom":"2010-11-01","validTo":"2013-06-10","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0078603|2006-07-10|0097613|2010-11-01|15996"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0109203","name":"R. E. D. Graniti S.p.a."},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2013-06-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0109203|2013-06-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0109203","name":"R. E. D. Graniti S.p.a."},"object":{"type":"operator","id":"0078603","name":"Colorado Stone Quarries, Inc."},"validFrom":"2013-06-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0078603|2006-07-10|0109203|2013-06-11|19759"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0174622","name":"TorQuest Partners Inc"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2023-08-10","validTo":"2023-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0174622|2023-08-10|2023-08-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0174622","name":"TorQuest Partners Inc"},"object":{"type":"operator","id":"0051842","name":"Georgia Marble"},"validFrom":"2023-08-10","validTo":"2006-07-09","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0051842|2004-04-26|0174622|2023-08-10|37154"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"mine","id":"0504438","name":"PRIDE OF AMERICA MINE"},"validFrom":"2023-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|M12431|2023-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"operator","id":"0051842","name":"Georgia Marble"},"validFrom":"2023-09-01","validTo":"2006-07-09","current":false,"derived":true,"evidenceMineId":"0504438","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"0504438|0051842|2004-04-26|M12431|2023-09-01|153761"}}],"coverage":{"historyRecords":9,"edgeCount":23,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0504438","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}