{"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":"2026-10-18T09:31:49.615908+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":"4602856","name":"J & J #2"},"operator":{"type":"operator","id":"P10224","name":"Fancy Mining Company Inc"},"controller":{"type":"controller","id":"C07835","name":"John A  Laurita"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01083","name":"J & J Mining Company Inc"},"object":{"type":"mine","id":"4602856","name":"J & J #2"},"validFrom":"1950-01-01","validTo":"1977-03-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|P01083|1950-01-01|1977-03-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01625","name":"James L  Laurita"},"object":{"type":"mine","id":"4602856","name":"J & J #2"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|C01625|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01625","name":"James L  Laurita"},"object":{"type":"operator","id":"P01083","name":"J & J Mining Company Inc"},"validFrom":"1950-01-01","validTo":"1977-03-08","current":false,"derived":true,"evidenceMineId":"4602856","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|P01083|1950-01-01|C01625|1950-01-01|55369"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05326","name":"Westbury Coal Inc & Sewickley Coal Management Inc"},"object":{"type":"mine","id":"4602856","name":"J & J #2"},"validFrom":"1977-03-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|C05326|1977-03-03|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06414","name":"J & J Coal Mining Partnership"},"object":{"type":"mine","id":"4602856","name":"J & J #2"},"validFrom":"1977-03-09","validTo":"1979-12-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|P06414|1977-03-09|1979-12-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05326","name":"Westbury Coal Inc & Sewickley Coal Management Inc"},"object":{"type":"operator","id":"P06414","name":"J & J Coal Mining Partnership"},"validFrom":"1977-03-09","validTo":"1979-12-16","current":false,"derived":true,"evidenceMineId":"4602856","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|P06414|1977-03-09|C05326|1977-03-03|68423"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10224","name":"Fancy Mining Company Inc"},"object":{"type":"mine","id":"4602856","name":"J & J #2"},"validFrom":"1979-12-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|P10224|1979-12-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07835","name":"John A  Laurita"},"object":{"type":"mine","id":"4602856","name":"J & J #2"},"validFrom":"1979-12-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|C07835|1979-12-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07835","name":"John A  Laurita"},"object":{"type":"operator","id":"P10224","name":"Fancy Mining Company Inc"},"validFrom":"1979-12-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"4602856","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602856|P10224|1979-12-17|C07835|1979-12-17|75837"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4602856","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}