{"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":"4406866","name":"Mine No. 2"},"operator":{"type":"operator","id":"0055418","name":"Snapco, Inc."},"controller":{"type":"controller","id":"0045949","name":"Robin M  Lambert; Philip T  Lambert"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15455","name":"Alliance Resource Partners LP"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"1996-10-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|C15455|1996-10-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23562","name":"Race Fork Coal Corp"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"1997-02-01","validTo":"1997-04-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P23562|1997-02-01|1997-04-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15455","name":"Alliance Resource Partners LP"},"object":{"type":"operator","id":"P23562","name":"Race Fork Coal Corp"},"validFrom":"1997-02-01","validTo":"1997-04-13","current":false,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P23562|1997-02-01|C15455|1996-10-24|95642"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23742","name":"Dusty Coal Inc"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"1997-04-14","validTo":"2001-06-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P23742|1997-04-14|2001-06-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03007","name":"Billy Ray  Dotson"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"1997-04-14","validTo":"2001-06-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|C03007|1997-04-14|2001-06-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03007","name":"Billy Ray  Dotson"},"object":{"type":"operator","id":"P23742","name":"Dusty Coal Inc"},"validFrom":"1997-04-14","validTo":"2001-06-15","current":false,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P23742|1997-04-14|C03007|1997-04-14|61613"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12979","name":"Kenneth L  Farley et al"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"1999-11-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|C12979|1999-11-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13574","name":"David  Stevenson"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2000-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|C13574|2000-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24660","name":"Cal Coal Inc"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2001-06-16","validTo":"2002-09-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24660|2001-06-16|2002-09-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00382","name":"Corbin Eugene  Cline et al"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2001-06-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|C00382|2001-06-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00382","name":"Corbin Eugene  Cline et al"},"object":{"type":"operator","id":"P24660","name":"Cal Coal Inc"},"validFrom":"2001-06-16","validTo":"2002-09-13","current":false,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24660|2001-06-16|C00382|2001-06-16|46853"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14885","name":"Charles T  Norman"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2001-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|C14885|2001-09-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24733","name":"Sassy Coal Co., Inc."},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2002-09-14","validTo":"2003-11-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24733|2002-09-14|2003-11-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14885","name":"Charles T  Norman"},"object":{"type":"operator","id":"P24733","name":"Sassy Coal Co., Inc."},"validFrom":"2002-09-14","validTo":"2003-11-03","current":false,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24733|2002-09-14|C14885|2001-09-24|94197"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24263","name":"Team Management, Inc."},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2003-11-04","validTo":"2004-09-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24263|2003-11-04|2004-09-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12979","name":"Kenneth L  Farley et al"},"object":{"type":"operator","id":"P24263","name":"Team Management, Inc."},"validFrom":"2003-11-04","validTo":"2004-09-14","current":false,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24263|2003-11-04|C12979|1999-11-22|88311"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24506","name":"DACOAL Mining, Inc."},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2004-09-15","validTo":"2004-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24506|2004-09-15|2004-11-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13574","name":"David  Stevenson"},"object":{"type":"operator","id":"P24506","name":"DACOAL Mining, Inc."},"validFrom":"2004-09-15","validTo":"2004-11-07","current":false,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|P24506|2004-09-15|C13574|2000-12-01|90532"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0055418","name":"Snapco, Inc."},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2004-11-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|0055418|2004-11-08|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0045949","name":"Philip T  Lambert et al"},"object":{"type":"mine","id":"4406866","name":"Mine No. 2"},"validFrom":"2004-11-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|0045949|2004-11-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0045949","name":"Philip T  Lambert et al"},"object":{"type":"operator","id":"0055418","name":"Snapco, Inc."},"validFrom":"2004-11-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|0055418|2004-11-08|0045949|2004-11-08|5548"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0045949","name":"Robin M  Lambert et al"},"object":{"type":"operator","id":"0055418","name":"Snapco, Inc."},"validFrom":"2004-11-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406866","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406866|0055418|2004-11-08|0045949|2004-11-08|5549"}}],"coverage":{"historyRecords":8,"edgeCount":22,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4406866","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"}}