{"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":"3608246","name":"7 Vein Slope"},"operator":{"type":"operator","id":"P22876","name":"Red Brush Coal Company"},"controller":{"type":"controller","id":"C10413","name":"Stephen  Perchinski"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21449","name":"K M A Coal Company"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1991-05-01","validTo":"1991-11-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P21449|1991-05-01|1991-11-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12261","name":"Stanchick Anthony"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1991-05-01","validTo":"1991-11-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|C12261|1991-05-01|1991-11-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12261","name":"Stanchick Anthony"},"object":{"type":"operator","id":"P21449","name":"K M A Coal Company"},"validFrom":"1991-05-01","validTo":"1991-11-19","current":false,"derived":true,"evidenceMineId":"3608246","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P21449|1991-05-01|C12261|1991-05-01|86495"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21655","name":"Eagle Run Coal Company Inc"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1991-11-20","validTo":"1992-06-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P21655|1991-11-20|1992-06-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14497","name":"Nestico Bernard J"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1991-11-20","validTo":"1995-05-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|C14497|1991-11-20|1995-05-24"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14497","name":"Nestico Bernard J"},"object":{"type":"operator","id":"P21655","name":"Eagle Run Coal Company Inc"},"validFrom":"1991-11-20","validTo":"1992-06-09","current":false,"derived":true,"evidenceMineId":"3608246","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P21655|1991-11-20|C14497|1991-11-20|93027"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21946","name":"Red Brush Coal Company"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1992-06-10","validTo":"1994-04-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P21946|1992-06-10|1994-04-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04670","name":"Stankiewicz Frank Et Al"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1992-06-10","validTo":"1994-04-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|C04670|1992-06-10|1994-04-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04670","name":"Stankiewicz Frank Et Al"},"object":{"type":"operator","id":"P21946","name":"Red Brush Coal Company"},"validFrom":"1992-06-10","validTo":"1994-04-10","current":false,"derived":true,"evidenceMineId":"3608246","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P21946|1992-06-10|C04670|1992-06-10|66426"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22726","name":"Red Brush Coal Company"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1994-04-11","validTo":"1994-09-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P22726|1994-04-11|1994-09-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15036","name":"Perchinski Steve-Shawn Kelly Et Al"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1994-04-11","validTo":"1994-09-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|C15036|1994-04-11|1994-09-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15036","name":"Perchinski Steve-Shawn Kelly Et Al"},"object":{"type":"operator","id":"P22726","name":"Red Brush Coal Company"},"validFrom":"1994-04-11","validTo":"1994-09-05","current":false,"derived":true,"evidenceMineId":"3608246","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P22726|1994-04-11|C15036|1994-04-11|94621"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22876","name":"Red Brush Coal Company"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1994-09-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P22876|1994-09-06|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10413","name":"Stephen  Perchinski"},"object":{"type":"mine","id":"3608246","name":"7 Vein Slope"},"validFrom":"1994-09-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|C10413|1994-09-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10413","name":"Stephen  Perchinski"},"object":{"type":"operator","id":"P22876","name":"Red Brush Coal Company"},"validFrom":"1994-09-06","validTo":null,"current":true,"derived":true,"evidenceMineId":"3608246","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3608246|P22876|1994-09-06|C10413|1994-09-06|81944"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3608246","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"}}