{"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":"4101256","name":"Bilbrough Marble Division"},"operator":{"type":"operator","id":"L12634","name":"Bilbrough Marble Division"},"controller":{"type":"controller","id":"M01770","name":"Joe R  Williams Jr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01124","name":"Bilbrough Marble Company"},"object":{"type":"mine","id":"4101256","name":"Bilbrough Marble Division"},"validFrom":"1950-01-01","validTo":"1980-06-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|L01124|1950-01-01|1980-06-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00076","name":"Jim Walter Corp"},"object":{"type":"mine","id":"4101256","name":"Bilbrough Marble Division"},"validFrom":"1950-01-01","validTo":"1980-06-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|M00076|1950-01-01|1980-06-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00076","name":"Jim Walter Corp"},"object":{"type":"operator","id":"L01124","name":"Bilbrough Marble Company"},"validFrom":"1950-01-01","validTo":"1980-06-25","current":false,"derived":true,"evidenceMineId":"4101256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|L01124|1950-01-01|M00076|1950-01-01|103496"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01770","name":"Joe R  Williams Jr"},"object":{"type":"mine","id":"4101256","name":"Bilbrough Marble Division"},"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":"4101256|M01770|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01969","name":"Texas Architectural Aggregate Inc"},"object":{"type":"mine","id":"4101256","name":"Bilbrough Marble Division"},"validFrom":"1980-06-26","validTo":"2003-01-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|L01969|1980-06-26|2003-01-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01770","name":"Joe R  Williams Jr"},"object":{"type":"operator","id":"L01969","name":"Texas Architectural Aggregate Inc"},"validFrom":"1980-06-26","validTo":"2003-01-14","current":false,"derived":true,"evidenceMineId":"4101256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|L01969|1980-06-26|M01770|1950-01-01|120875"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01770","name":"Joe R  Williams Jr"},"object":{"type":"mine","id":"4101256","name":"Bilbrough Marble Division"},"validFrom":"1992-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|M01770|1992-03-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12634","name":"Bilbrough Marble Division"},"object":{"type":"mine","id":"4101256","name":"Bilbrough Marble Division"},"validFrom":"2003-01-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|L12634|2003-01-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01770","name":"Joe R  Williams Jr"},"object":{"type":"operator","id":"L12634","name":"Bilbrough Marble Division"},"validFrom":"2003-01-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"4101256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101256|L12634|2003-01-15|M01770|1992-03-01|120882"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4101256","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"}}