{"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":"1515335","name":"#1"},"operator":{"type":"operator","id":"P20632","name":"Deer Path Corp"},"controller":{"type":"controller","id":"C14022","name":"Demski Lydia"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16974","name":"Cedar Gap Mining Inc"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1985-08-01","validTo":"1986-06-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P16974|1985-08-01|1986-06-22"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02899","name":"Crawford Kenneth Et Al"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1985-08-01","validTo":"1986-06-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C02899|1985-08-01|1986-06-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02899","name":"Crawford Kenneth Et Al"},"object":{"type":"operator","id":"P16974","name":"Cedar Gap Mining Inc"},"validFrom":"1985-08-01","validTo":"1986-06-22","current":false,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P16974|1985-08-01|C02899|1985-08-01|61177"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17776","name":"K J Mining"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1986-06-23","validTo":"1987-02-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P17776|1986-06-23|1987-02-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12462","name":"Lang Kermit J"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1986-06-23","validTo":"1987-02-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C12462|1986-06-23|1987-02-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12462","name":"Lang Kermit J"},"object":{"type":"operator","id":"P17776","name":"K J Mining"},"validFrom":"1986-06-23","validTo":"1987-02-17","current":false,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P17776|1986-06-23|C12462|1986-06-23|86935"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18518","name":"Silver Bullet Coal"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1987-02-18","validTo":"1987-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P18518|1987-02-18|1987-04-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12886","name":"Gibson Ronnie Et Al"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1987-02-18","validTo":"1987-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C12886|1987-02-18|1987-04-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12886","name":"Gibson Ronnie Et Al"},"object":{"type":"operator","id":"P18518","name":"Silver Bullet Coal"},"validFrom":"1987-02-18","validTo":"1987-04-01","current":false,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P18518|1987-02-18|C12886|1987-02-18|88114"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18519","name":"Astor Coal Company"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1987-04-02","validTo":"1988-02-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P18519|1987-04-02|1988-02-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12239","name":"Lanham Roy Et Al"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1987-04-02","validTo":"1988-02-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C12239|1987-04-02|1988-02-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12239","name":"Lanham Roy Et Al"},"object":{"type":"operator","id":"P18519","name":"Astor Coal Company"},"validFrom":"1987-04-02","validTo":"1988-02-10","current":false,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P18519|1987-04-02|C12239|1987-04-02|86450"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19468","name":"D & J Coal Company"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1988-02-11","validTo":"1989-03-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P19468|1988-02-11|1989-03-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13370","name":"Rodney  Sanders"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1988-02-11","validTo":"1989-03-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C13370|1988-02-11|1989-03-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13370","name":"Rodney  Sanders"},"object":{"type":"operator","id":"P19468","name":"D & J Coal Company"},"validFrom":"1988-02-11","validTo":"1989-03-07","current":false,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P19468|1988-02-11|C13370|1988-02-11|89446"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20266","name":"T & H Coal Company"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1989-03-08","validTo":"1989-10-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P20266|1989-03-08|1989-10-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13820","name":"Henegar Tommy Et Al"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1989-03-08","validTo":"1989-10-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C13820|1989-03-08|1989-10-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13820","name":"Henegar Tommy Et Al"},"object":{"type":"operator","id":"P20266","name":"T & H Coal Company"},"validFrom":"1989-03-08","validTo":"1989-10-08","current":false,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P20266|1989-03-08|C13820|1989-03-08|91243"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20632","name":"Deer Path Corp"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1989-10-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P20632|1989-10-09|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14022","name":"Demski Lydia"},"object":{"type":"mine","id":"1515335","name":"#1"},"validFrom":"1989-10-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|C14022|1989-10-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14022","name":"Demski Lydia"},"object":{"type":"operator","id":"P20632","name":"Deer Path Corp"},"validFrom":"1989-10-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"1515335","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1515335|P20632|1989-10-09|C14022|1989-10-09|91725"}}],"coverage":{"historyRecords":7,"edgeCount":21,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1515335","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"}}