{"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":"1300053","name":"S & S QUARRIES"},"operator":{"type":"operator","id":"L00023","name":"Bruening Rock Products Inc"},"controller":{"type":"controller","id":"M00064","name":"Greg  Bruening"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00064","name":"Greg  Bruening"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|M00064|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09503","name":"C D Hess & Son Rock Material Company"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1950-01-01","validTo":"1986-06-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L09503|1950-01-01|1986-06-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07457","name":"C D  Hess"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1950-01-01","validTo":"1986-06-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|M07457|1950-01-01|1986-06-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07457","name":"C D  Hess"},"object":{"type":"operator","id":"L09503","name":"C D Hess & Son Rock Material Company"},"validFrom":"1950-01-01","validTo":"1986-06-09","current":false,"derived":true,"evidenceMineId":"1300053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L09503|1950-01-01|M07457|1950-01-01|141314"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09504","name":"Hess & Van Zante Inc"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1986-06-10","validTo":"1988-09-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L09504|1986-06-10|1988-09-06"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07458","name":"Robert J  Van Zante"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1986-06-10","validTo":"1988-09-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|M07458|1986-06-10|1988-09-06"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07458","name":"Robert J  Van Zante"},"object":{"type":"operator","id":"L09504","name":"Hess & Van Zante Inc"},"validFrom":"1986-06-10","validTo":"1988-09-06","current":false,"derived":true,"evidenceMineId":"1300053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L09504|1986-06-10|M07458|1986-06-10|141315"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10580","name":"S & S Quarries Inc"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1988-09-07","validTo":"1995-02-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L10580|1988-09-07|1995-02-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09800","name":"Ron  Swan et al"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1988-09-07","validTo":"1995-02-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|M09800|1988-09-07|1995-02-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09800","name":"Ron  Swan et al"},"object":{"type":"operator","id":"L10580","name":"S & S Quarries Inc"},"validFrom":"1988-09-07","validTo":"1995-02-14","current":false,"derived":true,"evidenceMineId":"1300053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L10580|1988-09-07|M09800|1988-09-07|147555"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00023","name":"Bruening Rock Products Inc"},"object":{"type":"mine","id":"1300053","name":"S & S QUARRIES"},"validFrom":"1995-02-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L00023|1995-02-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00064","name":"Greg  Bruening"},"object":{"type":"operator","id":"L00023","name":"Bruening Rock Products Inc"},"validFrom":"1995-02-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"1300053","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1300053|L00023|1995-02-15|M00064|1950-01-01|103268"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1300053","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"}}