{"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":"3401693","name":"TEXOMA SAND & GRAVEL"},"operator":{"type":"operator","id":"L17763","name":"Hanson Aggregates Central Inc"},"controller":{"type":"controller","id":"M00521","name":"Hanson PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13044","name":"Stringfellow & Sons Inc"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"1989-09-01","validTo":"1996-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L13044|1989-09-01|1996-10-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09976","name":"Curtis  Stringfellow et al"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"1989-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|M09976|1989-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09976","name":"Curtis  Stringfellow et al"},"object":{"type":"operator","id":"L13044","name":"Stringfellow & Sons Inc"},"validFrom":"1989-09-01","validTo":"1996-10-31","current":false,"derived":true,"evidenceMineId":"3401693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L13044|1989-09-01|M09976|1989-09-01|148111"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09976","name":"Joel  Stringfellow et al"},"object":{"type":"operator","id":"L13044","name":"Stringfellow & Sons Inc"},"validFrom":"1989-09-01","validTo":"1996-10-31","current":false,"derived":true,"evidenceMineId":"3401693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L13044|1989-09-01|M09976|1989-09-01|148112"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14994","name":"Texoma Sand & Gravel Inc"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"1996-11-01","validTo":"1998-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L14994|1996-11-01|1998-11-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11414","name":"Gerald  Frey"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"1996-11-01","validTo":"1998-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|M11414|1996-11-01|1998-11-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11414","name":"Gerald  Frey"},"object":{"type":"operator","id":"L14994","name":"Texoma Sand & Gravel Inc"},"validFrom":"1996-11-01","validTo":"1998-11-30","current":false,"derived":true,"evidenceMineId":"3401693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L14994|1996-11-01|M11414|1996-11-01|151394"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16493","name":"Texoma Sand & Gravel Inc"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"1998-12-01","validTo":"2000-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L16493|1998-12-01|2000-08-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04321","name":"Pioneer International Ltd"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"1998-12-01","validTo":"2000-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|M04321|1998-12-01|2000-08-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04321","name":"Pioneer International Ltd"},"object":{"type":"operator","id":"L16493","name":"Texoma Sand & Gravel Inc"},"validFrom":"1998-12-01","validTo":"2000-08-03","current":false,"derived":true,"evidenceMineId":"3401693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L16493|1998-12-01|M04321|1998-12-01|131772"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17763","name":"Hanson Aggregates Central Inc"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"2000-08-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L17763|2000-08-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"3401693","name":"TEXOMA SAND & GRAVEL"},"validFrom":"2000-08-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|M00521|2000-08-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L17763","name":"Hanson Aggregates Central Inc"},"validFrom":"2000-08-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3401693|L17763|2000-08-04|M00521|2000-08-04|112645"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3401693","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"}}