{"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":"1100182","name":"Alby Quarry"},"operator":{"type":"operator","id":"0115265","name":"GP Material, Inc."},"controller":{"type":"controller","id":"0097693","name":"Timothy M  Corry; Gregory Scott  Perris"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11801","name":"Reliance Quarry Limited Partnership"},"object":{"type":"mine","id":"1100182","name":"Alby Quarry"},"validFrom":"1950-01-01","validTo":"1990-07-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|L11801|1950-01-01|1990-07-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09105","name":"John G  Helmkamp et al"},"object":{"type":"mine","id":"1100182","name":"Alby Quarry"},"validFrom":"1950-01-01","validTo":"1990-07-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|M09105|1950-01-01|1990-07-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09105","name":"John G  Helmkamp et al"},"object":{"type":"operator","id":"L11801","name":"Reliance Quarry Limited Partnership"},"validFrom":"1950-01-01","validTo":"1990-07-15","current":false,"derived":true,"evidenceMineId":"1100182","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|L11801|1950-01-01|M09105|1950-01-01|145091"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11802","name":"Alby Quarry"},"object":{"type":"mine","id":"1100182","name":"Alby Quarry"},"validFrom":"1990-07-16","validTo":"2010-10-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|L11802|1990-07-16|2010-10-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09106","name":"Eugene  Lippold"},"object":{"type":"mine","id":"1100182","name":"Alby Quarry"},"validFrom":"1990-07-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|M09106|1990-07-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09106","name":"Eugene  Lippold"},"object":{"type":"operator","id":"L11802","name":"Alby Quarry"},"validFrom":"1990-07-16","validTo":"2010-10-30","current":false,"derived":true,"evidenceMineId":"1100182","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|L11802|1990-07-16|M09106|1990-07-16|145092"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0115265","name":"GP Material, Inc."},"object":{"type":"mine","id":"1100182","name":"Alby Quarry"},"validFrom":"2010-10-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|0115265|2010-10-31|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0097693","name":"Gregory Scott  Perris et al"},"object":{"type":"mine","id":"1100182","name":"Alby Quarry"},"validFrom":"2010-10-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|0097693|2010-10-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0097693","name":"Gregory Scott  Perris et al"},"object":{"type":"operator","id":"0115265","name":"GP Material, Inc."},"validFrom":"2010-10-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"1100182","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|0115265|2010-10-31|0097693|2010-10-31|16006"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0097693","name":"Timothy M  Corry et al"},"object":{"type":"operator","id":"0115265","name":"GP Material, Inc."},"validFrom":"2010-10-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"1100182","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100182|0115265|2010-10-31|0097693|2010-10-31|16007"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1100182","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"}}