{"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":"1200634","name":"Caldwell PT & ML"},"operator":{"type":"operator","id":"0051145","name":"CGS Services Inc"},"controller":{"type":"controller","id":"C14267","name":"Waste Management Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01509","name":"Caldwell Gravel Sales Inc"},"object":{"type":"mine","id":"1200634","name":"Caldwell PT & ML"},"validFrom":"1950-01-01","validTo":"2002-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|L01509|1950-01-01|2002-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01351","name":"Dana I  Caldwell"},"object":{"type":"mine","id":"1200634","name":"Caldwell PT & ML"},"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":"1200634|M01351|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01351","name":"Dana I  Caldwell"},"object":{"type":"operator","id":"L01509","name":"Caldwell Gravel Sales Inc"},"validFrom":"1950-01-01","validTo":"2002-12-31","current":false,"derived":true,"evidenceMineId":"1200634","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|L01509|1950-01-01|M01351|1950-01-01|118135"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051145","name":"CGS Services Inc"},"object":{"type":"mine","id":"1200634","name":"Caldwell PT & ML"},"validFrom":"2003-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|0051145|2003-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01351","name":"Dana I  Caldwell"},"object":{"type":"mine","id":"1200634","name":"Caldwell PT & ML"},"validFrom":"2003-01-01","validTo":"2017-02-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|M01351|2003-01-01|2017-02-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01351","name":"Dana I  Caldwell"},"object":{"type":"operator","id":"0051145","name":"CGS Services Inc"},"validFrom":"2003-01-01","validTo":"2017-02-02","current":false,"derived":true,"evidenceMineId":"1200634","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|0051145|2003-01-01|M01351|2003-01-01|118137"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0132021","name":"Advanced Disposal Services"},"object":{"type":"mine","id":"1200634","name":"Caldwell PT & ML"},"validFrom":"2017-02-03","validTo":"2021-06-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|0132021|2017-02-03|2021-06-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0132021","name":"Advanced Disposal Services"},"object":{"type":"operator","id":"0051145","name":"CGS Services Inc"},"validFrom":"2017-02-03","validTo":"2021-06-29","current":false,"derived":true,"evidenceMineId":"1200634","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|0051145|2003-01-01|0132021|2017-02-03|26487"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14267","name":"Waste Management Inc"},"object":{"type":"mine","id":"1200634","name":"Caldwell PT & ML"},"validFrom":"2021-06-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|C14267|2021-06-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14267","name":"Waste Management Inc"},"object":{"type":"operator","id":"0051145","name":"CGS Services Inc"},"validFrom":"2021-06-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"1200634","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1200634|0051145|2003-01-01|C14267|2021-06-30|92382"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1200634","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"}}