{"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":"2026-10-17T05:35:58.500035+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":"4403539","name":"GSM #1"},"operator":{"type":"operator","id":"0169734","name":"Toano Contractors, Inc."},"controller":{"type":"controller","id":"0154421","name":"William  Taylor; Randolph  Taylor"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L37541","name":"R T Armistead & L Hanson"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"1950-01-01","validTo":"2015-03-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|L37541|1950-01-01|2015-03-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M37541","name":"R T Armistead & L Hanson"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|M37541|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M37541","name":"R T Armistead & L Hanson"},"object":{"type":"operator","id":"L37541","name":"R T Armistead & L Hanson"},"validFrom":"1950-01-01","validTo":"2015-03-16","current":false,"derived":true,"evidenceMineId":"4403539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|L37541|1950-01-01|M37541|1950-01-01|166824"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0138133","name":"Longhill Excavating II, LLC"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"2015-03-17","validTo":"2016-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0138133|2015-03-17|2016-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M37541","name":"R T Armistead & L Hanson"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"2015-03-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|M37541|2015-03-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M37541","name":"R T Armistead & L Hanson"},"object":{"type":"operator","id":"0138133","name":"Longhill Excavating II, LLC"},"validFrom":"2015-03-17","validTo":"2016-09-30","current":false,"derived":true,"evidenceMineId":"4403539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0138133|2015-03-17|M37541|2015-03-17|166825"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0148773","name":"Longhill Excavating"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"2016-10-01","validTo":"2019-04-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0148773|2016-10-01|2019-04-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0130581","name":"Matthew E  Minor"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"2016-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0130581|2016-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0130581","name":"Matthew E  Minor"},"object":{"type":"operator","id":"0148773","name":"Longhill Excavating"},"validFrom":"2016-10-01","validTo":"2019-04-17","current":false,"derived":true,"evidenceMineId":"4403539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0148773|2016-10-01|0130581|2016-10-01|26176"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0169734","name":"Toano Contractors, Inc."},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"2019-04-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0169734|2019-04-18|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0154421","name":"Randolph  Taylor et al"},"object":{"type":"mine","id":"4403539","name":"GSM #1"},"validFrom":"2019-04-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0154421|2019-04-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0154421","name":"Randolph  Taylor et al"},"object":{"type":"operator","id":"0169734","name":"Toano Contractors, Inc."},"validFrom":"2019-04-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0169734|2019-04-18|0154421|2019-04-18|32011"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0154421","name":"William  Taylor et al"},"object":{"type":"operator","id":"0169734","name":"Toano Contractors, Inc."},"validFrom":"2019-04-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403539","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4403539|0169734|2019-04-18|0154421|2019-04-18|32012"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4403539","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}