{"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":"2026-10-18T09:31:49.615908+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":"1519104","name":"US 460 Sta. 3 + 90 and left of 4+ 35"},"operator":{"type":"operator","id":"0080124","name":"Bizzack Construction LLC"},"controller":{"type":"controller","id":"0152801","name":"Bizzack Inc; Steven L  Lawson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0080124","name":"Bizzack Construction LLC"},"object":{"type":"mine","id":"1519104","name":"US 460 Sta. 3 + 90 and left of 4+ 35"},"validFrom":"2007-05-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0080124|2007-05-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0067391","name":"Mountain Materials  et al"},"object":{"type":"mine","id":"1519104","name":"US 460 Sta. 3 + 90 and left of 4+ 35"},"validFrom":"2007-05-03","validTo":"2020-01-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0067391|2007-05-03|2020-01-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0067391","name":"Mountain Materials  et al"},"object":{"type":"operator","id":"0080124","name":"Bizzack Construction LLC"},"validFrom":"2007-05-03","validTo":"2020-01-20","current":false,"derived":true,"evidenceMineId":"1519104","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0080124|2007-05-03|0067391|2007-05-03|9437"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0067391","name":"Bizzack Inc  et al"},"object":{"type":"operator","id":"0080124","name":"Bizzack Construction LLC"},"validFrom":"2007-05-03","validTo":"2020-01-20","current":false,"derived":true,"evidenceMineId":"1519104","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0080124|2007-05-03|0067391|2007-05-03|9438"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0152801","name":"Bizzack Inc et al"},"object":{"type":"mine","id":"1519104","name":"US 460 Sta. 3 + 90 and left of 4+ 35"},"validFrom":"2020-01-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0152801|2020-01-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0152801","name":"Bizzack Inc et al"},"object":{"type":"operator","id":"0080124","name":"Bizzack Construction LLC"},"validFrom":"2020-01-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519104","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0080124|2007-05-03|0152801|2020-01-21|31666"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0152801","name":"Steven L  Lawson et al"},"object":{"type":"operator","id":"0080124","name":"Bizzack Construction LLC"},"validFrom":"2020-01-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519104","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1519104|0080124|2007-05-03|0152801|2020-01-21|31667"}}],"coverage":{"historyRecords":4,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1519104","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}