{"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":"1700927","name":"Bass Harbor Portable Plant"},"operator":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"controller":{"type":"controller","id":"0190181","name":"Timothy H Gott"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02424","name":"Douglas A  Gott  et al"},"object":{"type":"mine","id":"1700927","name":"Bass Harbor Portable Plant"},"validFrom":"1978-03-09","validTo":"2012-07-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|M02424|1978-03-09|2012-07-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0113263","name":"Timothy  Gott et al"},"object":{"type":"mine","id":"1700927","name":"Bass Harbor Portable Plant"},"validFrom":"2012-07-27","validTo":"2024-11-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|0113263|2012-07-27|2024-11-04"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"object":{"type":"mine","id":"1700927","name":"Bass Harbor Portable Plant"},"validFrom":"2014-04-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|L06336|2014-04-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0113263","name":"Timothy  Gott et al"},"object":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"validFrom":"2014-04-23","validTo":"2024-11-04","current":false,"derived":true,"evidenceMineId":"1700927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|L06336|2014-04-23|0113263|2012-07-27|21113"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0113263","name":"Peter  Gott et al"},"object":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"validFrom":"2014-04-23","validTo":"2024-11-04","current":false,"derived":true,"evidenceMineId":"1700927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|L06336|2014-04-23|0113263|2012-07-27|21114"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0113263","name":"Thomas  Gott et al"},"object":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"validFrom":"2014-04-23","validTo":"2024-11-04","current":false,"derived":true,"evidenceMineId":"1700927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|L06336|2014-04-23|0113263|2012-07-27|21115"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02424","name":"Douglas A  Gott  et al"},"object":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"validFrom":"2014-04-23","validTo":"2012-07-26","current":false,"derived":true,"evidenceMineId":"1700927","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|L06336|2014-04-23|M02424|1978-03-09|125414"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0190181","name":"Timothy H Gott"},"object":{"type":"mine","id":"1700927","name":"Bass Harbor Portable Plant"},"validFrom":"2024-11-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|0190181|2024-11-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0190181","name":"Timothy H Gott"},"object":{"type":"operator","id":"L06336","name":"Doug Gott & Sons, Inc."},"validFrom":"2024-11-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"1700927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"1700927|L06336|2014-04-23|0190181|2024-11-05|40576"}}],"coverage":{"historyRecords":5,"edgeCount":9,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1700927","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"}}