{"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":"4402708","name":"#1 Loading Dock"},"operator":{"type":"operator","id":"P17538","name":"Black Diamond Company"},"controller":{"type":"controller","id":"0085453","name":"Metinvest B V"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00168","name":"Black Diamond Fuel Company"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1950-01-01","validTo":"1975-08-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P00168|1950-01-01|1975-08-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00113","name":"Fields Resources Inc"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"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":"4402708|C00113|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00113","name":"Fields Resources Inc"},"object":{"type":"operator","id":"P00168","name":"Black Diamond Fuel Company"},"validFrom":"1950-01-01","validTo":"1975-08-12","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P00168|1950-01-01|C00113|1950-01-01|44260"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00167","name":"Excello Coal Corp"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1975-08-13","validTo":"1979-09-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P00167|1975-08-13|1979-09-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00112","name":"Excello Coal Corp"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1975-08-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|C00112|1975-08-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00112","name":"Excello Coal Corp"},"object":{"type":"operator","id":"P00167","name":"Excello Coal Corp"},"validFrom":"1975-08-13","validTo":"1979-09-24","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P00167|1975-08-13|C00112|1975-08-13|44230"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08510","name":"Black Watch/Black Diamond Coal Corp"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1979-09-25","validTo":"1980-06-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P08510|1979-09-25|1980-06-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00113","name":"Fields Resources Inc"},"object":{"type":"operator","id":"P08510","name":"Black Watch/Black Diamond Coal Corp"},"validFrom":"1979-09-25","validTo":"1980-06-25","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P08510|1979-09-25|C00113|1950-01-01|44261"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10715","name":"Rapoca Energy Company"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1980-06-26","validTo":"1984-09-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P10715|1980-06-26|1984-09-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08129","name":"W R Grace Company et al"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1980-06-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|C08129|1980-06-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08129","name":"W R Grace Company et al"},"object":{"type":"operator","id":"P10715","name":"Rapoca Energy Company"},"validFrom":"1980-06-26","validTo":"1984-09-26","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P10715|1980-06-26|C08129|1980-06-26|76424"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08129","name":"M A Hanna Company et al"},"object":{"type":"operator","id":"P10715","name":"Rapoca Energy Company"},"validFrom":"1980-06-26","validTo":"1984-09-26","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P10715|1980-06-26|C08129|1980-06-26|76425"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16240","name":"Spirit Coal Corp"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1984-09-27","validTo":"1985-11-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P16240|1984-09-27|1985-11-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11559","name":"David  Powers"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1984-09-27","validTo":"1985-11-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|C11559|1984-09-27|1985-11-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11559","name":"David  Powers"},"object":{"type":"operator","id":"P16240","name":"Spirit Coal Corp"},"validFrom":"1984-09-27","validTo":"1985-11-26","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P16240|1984-09-27|C11559|1984-09-27|84872"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17538","name":"Black Diamond Company"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1985-11-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P17538|1985-11-27|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13160","name":"Southern Mining Co"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"1985-11-27","validTo":"2006-01-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|C13160|1985-11-27|2006-01-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13160","name":"Southern Mining Co"},"object":{"type":"operator","id":"P17538","name":"Black Diamond Company"},"validFrom":"1985-11-27","validTo":"2006-01-01","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P17538|1985-11-27|C13160|1985-11-27|88879"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"2006-01-02","validTo":"2009-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|C00375|2006-01-02|2009-04-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P17538","name":"Black Diamond Company"},"validFrom":"2006-01-02","validTo":"2009-04-29","current":false,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P17538|1985-11-27|C00375|2006-01-02|46686"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"mine","id":"4402708","name":"#1 Loading Dock"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|0085453|2009-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"operator","id":"P17538","name":"Black Diamond Company"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"4402708","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402708|P17538|1985-11-27|0085453|2009-04-30|13496"}}],"coverage":{"historyRecords":9,"edgeCount":22,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4402708","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"}}