{"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":"4502666","name":"PORTABLE #2"},"operator":{"type":"operator","id":"L14780","name":"Csr Associated Sand & Gravel Company Inc"},"controller":{"type":"controller","id":"M08942","name":"CSR Ltd"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00150","name":"Mario A  Segale et al"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"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":"4502666|M00150|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01219","name":"Consolidated Gold Fields Limited"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"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":"4502666|M01219|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00183","name":"M A Segale Inc"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"validFrom":"1979-01-01","validTo":"1985-09-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L00183|1979-01-01|1985-09-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00150","name":"Mario A  Segale et al"},"object":{"type":"operator","id":"L00183","name":"M A Segale Inc"},"validFrom":"1979-01-01","validTo":"1985-09-02","current":false,"derived":true,"evidenceMineId":"4502666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L00183|1979-01-01|M00150|1950-01-01|105121"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00150","name":"Mark A  Segale et al"},"object":{"type":"operator","id":"L00183","name":"M A Segale Inc"},"validFrom":"1979-01-01","validTo":"1985-09-02","current":false,"derived":true,"evidenceMineId":"4502666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L00183|1979-01-01|M00150|1950-01-01|105122"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00900","name":"Associated Sand & Gravel Company Inc"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"validFrom":"1985-09-03","validTo":"1989-08-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L00900|1985-09-03|1989-08-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01219","name":"Consolidated Gold Fields Limited"},"object":{"type":"operator","id":"L00900","name":"Associated Sand & Gravel Company Inc"},"validFrom":"1985-09-03","validTo":"1989-08-09","current":false,"derived":true,"evidenceMineId":"4502666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L00900|1985-09-03|M01219|1950-01-01|117493"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"validFrom":"1989-03-14","validTo":"1990-02-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|M00521|1989-03-14|1990-02-01"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11565","name":"Associated Sand & Gravel Company Inc"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"validFrom":"1989-08-10","validTo":"1990-02-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L11565|1989-08-10|1990-02-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L11565","name":"Associated Sand & Gravel Company Inc"},"validFrom":"1989-08-10","validTo":"1990-02-01","current":false,"derived":true,"evidenceMineId":"4502666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L11565|1989-08-10|M00521|1989-03-14|112539"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14780","name":"Csr Associated Sand & Gravel Company Inc"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"validFrom":"1990-02-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L14780|1990-02-02|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"mine","id":"4502666","name":"PORTABLE #2"},"validFrom":"1990-02-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|M08942|1990-02-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"operator","id":"L14780","name":"Csr Associated Sand & Gravel Company Inc"},"validFrom":"1990-02-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4502666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4502666|L14780|1990-02-02|M08942|1990-02-02|144589"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4502666","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"}}