{"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":"2700519","name":"GMI Sand Pit"},"operator":{"type":"operator","id":"L00435","name":"Peckham Materials Corp"},"controller":{"type":"controller","id":"M00356","name":"Peckham Industries Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00356","name":"Peckham Industries Inc"},"object":{"type":"mine","id":"2700519","name":"GMI Sand Pit"},"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":"2700519|M00356|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0132841","name":"Marc  Bourgeois et al"},"object":{"type":"mine","id":"2700519","name":"GMI Sand Pit"},"validFrom":"2016-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700519|0132841|2016-11-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0150653","name":"GMI Acquisition LLC"},"object":{"type":"mine","id":"2700519","name":"GMI Sand Pit"},"validFrom":"2020-07-06","validTo":"2026-09-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700519|0150653|2020-07-06|2026-09-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0132841","name":"Marc  Bourgeois et al"},"object":{"type":"operator","id":"0150653","name":"GMI Acquisition LLC"},"validFrom":"2020-07-06","validTo":"2026-09-22","current":false,"derived":true,"evidenceMineId":"2700519","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700519|0150653|2020-07-06|0132841|2016-11-01|26634"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0132841","name":"Warren  Colby et al"},"object":{"type":"operator","id":"0150653","name":"GMI Acquisition LLC"},"validFrom":"2020-07-06","validTo":"2026-09-22","current":false,"derived":true,"evidenceMineId":"2700519","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700519|0150653|2020-07-06|0132841|2016-11-01|26635"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00435","name":"Peckham Materials Corp"},"object":{"type":"mine","id":"2700519","name":"GMI Sand Pit"},"validFrom":"2026-09-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700519|L00435|2026-09-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00356","name":"Peckham Industries Inc"},"object":{"type":"operator","id":"L00435","name":"Peckham Materials Corp"},"validFrom":"2026-09-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"2700519","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2700519|L00435|2026-09-23|M00356|1950-01-01|109948"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2700519","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"}}