{"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":"1508087","name":"No 1 Mine"},"operator":{"type":"operator","id":"P05046","name":"Maranatha Corp"},"controller":{"type":"controller","id":"C00198","name":"Davis Gene"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00333","name":"Coone Jerry"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1974-12-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|C00333|1974-12-12|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00423","name":"Freedom Mining & Leasing Co Inc"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1975-02-25","validTo":"1975-06-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P00423|1975-02-25|1975-06-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00333","name":"Coone Jerry"},"object":{"type":"operator","id":"P00423","name":"Freedom Mining & Leasing Co Inc"},"validFrom":"1975-02-25","validTo":"1975-06-22","current":false,"derived":true,"evidenceMineId":"1508087","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P00423|1975-02-25|C00333|1974-12-12|46201"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00422","name":"Cow Creek Coal Company Inc"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1975-06-23","validTo":"1975-11-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P00422|1975-06-23|1975-11-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00332","name":"Stone James G Jr"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1975-06-23","validTo":"1975-11-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|C00332|1975-06-23|1975-11-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00332","name":"Stone James G Jr"},"object":{"type":"operator","id":"P00422","name":"Cow Creek Coal Company Inc"},"validFrom":"1975-06-23","validTo":"1975-11-26","current":false,"derived":true,"evidenceMineId":"1508087","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P00422|1975-06-23|C00332|1975-06-23|46199"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00331","name":"Burchett Fred"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1975-11-10","validTo":"1977-04-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|C00331|1975-11-10|1977-04-15"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00421","name":"B & F Coal Co"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1975-11-27","validTo":"1977-04-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P00421|1975-11-27|1977-04-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00331","name":"Burchett Fred"},"object":{"type":"operator","id":"P00421","name":"B & F Coal Co"},"validFrom":"1975-11-27","validTo":"1977-04-15","current":false,"derived":true,"evidenceMineId":"1508087","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P00421|1975-11-27|C00331|1975-11-10|46197"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00198","name":"Davis Gene"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1977-02-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|C00198|1977-02-08|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P05046","name":"Maranatha Corp"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1977-04-16","validTo":"1979-09-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P05046|1977-04-16|1979-09-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00198","name":"Davis Gene"},"object":{"type":"operator","id":"P05046","name":"Maranatha Corp"},"validFrom":"1977-04-16","validTo":"1979-09-27","current":false,"derived":true,"evidenceMineId":"1508087","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P05046|1977-04-16|C00198|1977-02-08|44819"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09917","name":"Little Bit Coal Company"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1979-09-28","validTo":"1980-02-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P09917|1979-09-28|1980-02-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07534","name":"Johnson Burl"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1979-09-28","validTo":"1980-02-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|C07534|1979-09-28|1980-02-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07534","name":"Johnson Burl"},"object":{"type":"operator","id":"P09917","name":"Little Bit Coal Company"},"validFrom":"1979-09-28","validTo":"1980-02-03","current":false,"derived":true,"evidenceMineId":"1508087","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P09917|1979-09-28|C07534|1979-09-28|74922"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P05046","name":"Maranatha Corp"},"object":{"type":"mine","id":"1508087","name":"No 1 Mine"},"validFrom":"1980-02-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P05046|1980-02-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00198","name":"Davis Gene"},"object":{"type":"operator","id":"P05046","name":"Maranatha Corp"},"validFrom":"1980-02-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"1508087","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508087|P05046|1980-02-04|C00198|1977-02-08|44820"}}],"coverage":{"historyRecords":6,"edgeCount":17,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1508087","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"}}