{"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":"1508672","name":"Pioneer J-2 Surface"},"operator":{"type":"operator","id":"P02119","name":"Pioneer Corp"},"controller":{"type":"controller","id":"C01799","name":"Finn Earl W"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01799","name":"Finn Earl W"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1974-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|C01799|1974-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02056","name":"Kentucky Cardinal Construction Company"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1975-01-01","validTo":"1976-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P02056|1975-01-01|1976-04-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01742","name":"Ranier H--J P Wolley & C T Lisle"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1975-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|C01742|1975-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01742","name":"Ranier H--J P Wolley & C T Lisle"},"object":{"type":"operator","id":"P02056","name":"Kentucky Cardinal Construction Company"},"validFrom":"1975-01-01","validTo":"1976-04-05","current":false,"derived":true,"evidenceMineId":"1508672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P02056|1975-01-01|C01742|1975-01-01|55748"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02055","name":"Wells Coal Company Inc"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1976-04-06","validTo":"1976-10-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P02055|1976-04-06|1976-10-06"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01741","name":"Wells Paul S"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1976-04-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|C01741|1976-04-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01741","name":"Wells Paul S"},"object":{"type":"operator","id":"P02055","name":"Wells Coal Company Inc"},"validFrom":"1976-04-06","validTo":"1976-10-06","current":false,"derived":true,"evidenceMineId":"1508672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P02055|1976-04-06|C01741|1976-04-06|55740"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03406","name":"Brewco Leasing & Mining Company"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1976-10-07","validTo":"1977-04-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P03406|1976-10-07|1977-04-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05426","name":"Bathalter Joe S"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1976-10-07","validTo":"1977-04-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|C05426|1976-10-07|1977-04-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05426","name":"Bathalter Joe S"},"object":{"type":"operator","id":"P03406","name":"Brewco Leasing & Mining Company"},"validFrom":"1976-10-07","validTo":"1977-04-13","current":false,"derived":true,"evidenceMineId":"1508672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P03406|1976-10-07|C05426|1976-10-07|68803"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02119","name":"Pioneer Corp"},"object":{"type":"mine","id":"1508672","name":"Pioneer J-2 Surface"},"validFrom":"1977-04-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P02119|1977-04-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01799","name":"Finn Earl W"},"object":{"type":"operator","id":"P02119","name":"Pioneer Corp"},"validFrom":"1977-04-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"1508672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508672|P02119|1977-04-14|C01799|1974-10-01|56157"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1508672","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"}}