{"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":"0600700","name":"ELLINGTON PIT"},"operator":{"type":"operator","id":"0202573","name":"Powder Hill Sand & Gravel"},"controller":{"type":"controller","id":"0192520","name":"Owen  Jarmoc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050239","name":"Powder Hill Sand & Gravel LLC"},"object":{"type":"mine","id":"0600700","name":"ELLINGTON PIT"},"validFrom":"2002-03-01","validTo":"2025-04-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0050239|2002-03-01|2025-04-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040645","name":"Mark  Spazzarini"},"object":{"type":"mine","id":"0600700","name":"ELLINGTON PIT"},"validFrom":"2002-03-01","validTo":"2021-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0040645|2002-03-01|2021-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040645","name":"Mark  Spazzarini"},"object":{"type":"operator","id":"0050239","name":"Powder Hill Sand & Gravel LLC"},"validFrom":"2002-03-01","validTo":"2021-12-31","current":false,"derived":true,"evidenceMineId":"0600700","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0050239|2002-03-01|0040645|2002-03-01|394"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0166261","name":"Edward  Spazzarini"},"object":{"type":"mine","id":"0600700","name":"ELLINGTON PIT"},"validFrom":"2022-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0166261|2022-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0166261","name":"Edward  Spazzarini"},"object":{"type":"operator","id":"0050239","name":"Powder Hill Sand & Gravel LLC"},"validFrom":"2022-01-01","validTo":"2025-04-27","current":false,"derived":true,"evidenceMineId":"0600700","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0050239|2002-03-01|0166261|2022-01-01|34904"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0202573","name":"Powder Hill Sand & Gravel"},"object":{"type":"mine","id":"0600700","name":"ELLINGTON PIT"},"validFrom":"2025-04-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0202573|2025-04-28|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0192520","name":"Owen  Jarmoc"},"object":{"type":"mine","id":"0600700","name":"ELLINGTON PIT"},"validFrom":"2025-04-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0192520|2025-04-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0192520","name":"Owen  Jarmoc"},"object":{"type":"operator","id":"0202573","name":"Powder Hill Sand & Gravel"},"validFrom":"2025-04-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"0600700","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0600700|0202573|2025-04-28|0192520|2025-04-28|40980"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0600700","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"}}