{"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":"4603935","name":"Mine No 12-C"},"operator":{"type":"operator","id":"P17462","name":"Metro Mining Company Inc"},"controller":{"type":"controller","id":"C12270","name":"Faine James R"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00267","name":"Chafin John C Sr"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|C00267|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00853","name":"Dickenson Carl J"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|C00853|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01015","name":"Laura Coal & Coke Company Inc"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1973-01-01","validTo":"1976-09-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P01015|1973-01-01|1976-09-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00853","name":"Dickenson Carl J"},"object":{"type":"operator","id":"P01015","name":"Laura Coal & Coke Company Inc"},"validFrom":"1973-01-01","validTo":"1976-09-19","current":false,"derived":true,"evidenceMineId":"4603935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P01015|1973-01-01|C00853|1950-01-01|50529"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03355","name":"Rich Creek Mining Company Inc"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1976-09-20","validTo":"1982-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P03355|1976-09-20|1982-12-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02780","name":"Harry G  Cooke et al"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1976-09-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|C02780|1976-09-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02780","name":"Harry G  Cooke et al"},"object":{"type":"operator","id":"P03355","name":"Rich Creek Mining Company Inc"},"validFrom":"1976-09-20","validTo":"1982-12-08","current":false,"derived":true,"evidenceMineId":"4603935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P03355|1976-09-20|C02780|1976-09-20|60746"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02780","name":"Larry David  Cochran et al"},"object":{"type":"operator","id":"P03355","name":"Rich Creek Mining Company Inc"},"validFrom":"1976-09-20","validTo":"1982-12-08","current":false,"derived":true,"evidenceMineId":"4603935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P03355|1976-09-20|C02780|1976-09-20|60747"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00328","name":"Chafin Coal Company Inc"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1982-12-09","validTo":"1983-01-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P00328|1982-12-09|1983-01-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00267","name":"Chafin John C Sr"},"object":{"type":"operator","id":"P00328","name":"Chafin Coal Company Inc"},"validFrom":"1982-12-09","validTo":"1983-01-19","current":false,"derived":true,"evidenceMineId":"4603935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P00328|1982-12-09|C00267|1950-01-01|45614"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14121","name":"Golden Brook Mining Ltd"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1983-01-20","validTo":"1986-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P14121|1983-01-20|1986-01-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10784","name":"Chafin John C Jr & Arthur B Chafin"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1983-01-20","validTo":"1986-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|C10784|1983-01-20|1986-01-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10784","name":"Chafin John C Jr & Arthur B Chafin"},"object":{"type":"operator","id":"P14121","name":"Golden Brook Mining Ltd"},"validFrom":"1983-01-20","validTo":"1986-01-17","current":false,"derived":true,"evidenceMineId":"4603935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P14121|1983-01-20|C10784|1983-01-20|82775"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17462","name":"Metro Mining Company Inc"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1986-01-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P17462|1986-01-18|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12270","name":"Faine James R"},"object":{"type":"mine","id":"4603935","name":"Mine No 12-C"},"validFrom":"1986-01-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|C12270|1986-01-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12270","name":"Faine James R"},"object":{"type":"operator","id":"P17462","name":"Metro Mining Company Inc"},"validFrom":"1986-01-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4603935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4603935|P17462|1986-01-18|C12270|1986-01-18|86511"}}],"coverage":{"historyRecords":6,"edgeCount":16,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4603935","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"}}