{"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":"1515786","name":"#2"},"operator":{"type":"operator","id":"P21400","name":"Daily Contracting Inc"},"controller":{"type":"controller","id":"C12922","name":"Warren Dewey"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18316","name":"Wilton Contracting"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1986-10-01","validTo":"1988-09-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P18316|1986-10-01|1988-09-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12772","name":"Neal Joe"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1986-10-01","validTo":"1988-09-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|C12772|1986-10-01|1988-09-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12772","name":"Neal Joe"},"object":{"type":"operator","id":"P18316","name":"Wilton Contracting"},"validFrom":"1986-10-01","validTo":"1988-09-26","current":false,"derived":true,"evidenceMineId":"1515786","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P18316|1986-10-01|C12772|1986-10-01|87883"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19845","name":"Wilton Contracting"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1988-09-27","validTo":"1989-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P19845|1988-09-27|1989-11-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13571","name":"Gist Charlie"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1988-09-27","validTo":"1989-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|C13571|1988-09-27|1989-11-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13571","name":"Gist Charlie"},"object":{"type":"operator","id":"P19845","name":"Wilton Contracting"},"validFrom":"1988-09-27","validTo":"1989-11-30","current":false,"derived":true,"evidenceMineId":"1515786","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P19845|1988-09-27|C13571|1988-09-27|90519"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20662","name":"S & D Coal Company"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1989-12-01","validTo":"1990-01-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P20662|1989-12-01|1990-01-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14036","name":"Noble James & Ronald Patterson"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1989-12-01","validTo":"1990-01-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|C14036|1989-12-01|1990-01-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14036","name":"Noble James & Ronald Patterson"},"object":{"type":"operator","id":"P20662","name":"S & D Coal Company"},"validFrom":"1989-12-01","validTo":"1990-01-21","current":false,"derived":true,"evidenceMineId":"1515786","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P20662|1989-12-01|C14036|1989-12-01|91772"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20772","name":"Beechnut Mining Inc"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1990-01-22","validTo":"1991-04-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P20772|1990-01-22|1991-04-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14082","name":"Warren Donnie"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1990-01-22","validTo":"1991-04-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|C14082|1990-01-22|1991-04-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14082","name":"Warren Donnie"},"object":{"type":"operator","id":"P20772","name":"Beechnut Mining Inc"},"validFrom":"1990-01-22","validTo":"1991-04-14","current":false,"derived":true,"evidenceMineId":"1515786","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P20772|1990-01-22|C14082|1990-01-22|91954"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12922","name":"Warren Dewey"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1991-03-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|C12922|1991-03-11|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21400","name":"Daily Contracting Inc"},"object":{"type":"mine","id":"1515786","name":"#2"},"validFrom":"1991-04-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P21400|1991-04-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12922","name":"Warren Dewey"},"object":{"type":"operator","id":"P21400","name":"Daily Contracting Inc"},"validFrom":"1991-04-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"1515786","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515786|P21400|1991-04-15|C12922|1991-03-11|88183"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1515786","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"}}