{"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":"2302403","name":"Fast Pack 2 Portable 2"},"operator":{"type":"operator","id":"L16197","name":"Martin Marietta Materials, Inc."},"controller":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"2302403","name":"Fast Pack 2 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":"2302403|M00174|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07265","name":"Fred Weber, Inc."},"object":{"type":"mine","id":"2302403","name":"Fast Pack 2 Portable 2"},"validFrom":"1986-12-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|M07265|1986-12-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09617","name":"Fred Weber Inc"},"object":{"type":"mine","id":"2302403","name":"Fast Pack 2 Portable 2"},"validFrom":"2009-09-18","validTo":"2021-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|L09617|2009-09-18|2021-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07265","name":"Fred Weber, Inc."},"object":{"type":"operator","id":"L09617","name":"Fred Weber Inc"},"validFrom":"2009-09-18","validTo":"2021-06-30","current":false,"derived":true,"evidenceMineId":"2302403","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|L09617|2009-09-18|M07265|1986-12-24|140519"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0177553","name":"New Frontier Materials Operations Alpha, LLC"},"object":{"type":"mine","id":"2302403","name":"Fast Pack 2 Portable 2"},"validFrom":"2021-07-01","validTo":"2026-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|0177553|2021-07-01|2026-06-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0163321","name":"PEPI Capital, L.P. et al"},"object":{"type":"mine","id":"2302403","name":"Fast Pack 2 Portable 2"},"validFrom":"2021-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|0163321|2021-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0163321","name":"PEPI Capital, L.P. et al"},"object":{"type":"operator","id":"0177553","name":"New Frontier Materials Operations Alpha, LLC"},"validFrom":"2021-07-01","validTo":"2026-06-14","current":false,"derived":true,"evidenceMineId":"2302403","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|0177553|2021-07-01|0163321|2021-07-01|34222"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0163321","name":"42 North Resources Partners II LP et al"},"object":{"type":"operator","id":"0177553","name":"New Frontier Materials Operations Alpha, LLC"},"validFrom":"2021-07-01","validTo":"2026-06-14","current":false,"derived":true,"evidenceMineId":"2302403","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|0177553|2021-07-01|0163321|2021-07-01|34223"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0163321","name":"RWNIH-OP Holdings LLC et al"},"object":{"type":"operator","id":"0177553","name":"New Frontier Materials Operations Alpha, LLC"},"validFrom":"2021-07-01","validTo":"2026-06-14","current":false,"derived":true,"evidenceMineId":"2302403","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|0177553|2021-07-01|0163321|2021-07-01|34224"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16197","name":"Martin Marietta Materials, Inc."},"object":{"type":"mine","id":"2302403","name":"Fast Pack 2 Portable 2"},"validFrom":"2026-06-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|L16197|2026-06-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L16197","name":"Martin Marietta Materials, Inc."},"validFrom":"2026-06-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"2302403","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302403|L16197|2026-06-15|M00174|1950-01-01|106066"}}],"coverage":{"historyRecords":5,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2302403","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"}}