{"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":"2026-10-17T05:35:58.500035+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":"3001692","name":"EMPIRE SAND & GRAVEL"},"operator":{"type":"operator","id":"L15562","name":"Tilcon New York Inc"},"controller":{"type":"controller","id":"M06183","name":"CRH PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02945","name":"Ringwood Sand & Gravel Company Of New York"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1950-01-01","validTo":"1980-02-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L02945|1950-01-01|1980-02-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02426","name":"Charles J  Rossi"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1950-01-01","validTo":"1980-02-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|M02426|1950-01-01|1980-02-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02426","name":"Charles J  Rossi"},"object":{"type":"operator","id":"L02945","name":"Ringwood Sand & Gravel Company Of New York"},"validFrom":"1950-01-01","validTo":"1980-02-13","current":false,"derived":true,"evidenceMineId":"3001692","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L02945|1950-01-01|M02426|1950-01-01|125416"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04263","name":"Empire Stone Products Inc"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1980-02-14","validTo":"1980-11-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L04263|1980-02-14|1980-11-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03434","name":"John  Magee"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1980-02-14","validTo":"1980-11-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|M03434|1980-02-14|1980-11-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03434","name":"John  Magee"},"object":{"type":"operator","id":"L04263","name":"Empire Stone Products Inc"},"validFrom":"1980-02-14","validTo":"1980-11-12","current":false,"derived":true,"evidenceMineId":"3001692","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L04263|1980-02-14|M03434|1980-02-14|129083"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05442","name":"Empire Stone Products"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1980-11-13","validTo":"1987-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L05442|1980-11-13|1987-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03136","name":"Nicholas P  Pappas"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1980-11-13","validTo":"1987-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|M03136|1980-11-13|1987-07-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03136","name":"Nicholas P  Pappas"},"object":{"type":"operator","id":"L05442","name":"Empire Stone Products"},"validFrom":"1980-11-13","validTo":"1987-07-31","current":false,"derived":true,"evidenceMineId":"3001692","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L05442|1980-11-13|M03136|1980-11-13|128033"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09914","name":"Empire Stone Products Inc"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1987-08-01","validTo":"1999-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L09914|1987-08-01|1999-06-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07770","name":"Anthony J  Dellechiaie"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1987-08-01","validTo":"1999-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|M07770|1987-08-01|1999-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07770","name":"Anthony J  Dellechiaie"},"object":{"type":"operator","id":"L09914","name":"Empire Stone Products Inc"},"validFrom":"1987-08-01","validTo":"1999-06-30","current":false,"derived":true,"evidenceMineId":"3001692","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L09914|1987-08-01|M07770|1987-08-01|141946"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1996-09-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|M06183|1996-09-09|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15562","name":"Tilcon New York Inc"},"object":{"type":"mine","id":"3001692","name":"EMPIRE SAND & GRAVEL"},"validFrom":"1999-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L15562|1999-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L15562","name":"Tilcon New York Inc"},"validFrom":"1999-07-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3001692","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3001692|L15562|1999-07-01|M06183|1996-09-09|136738"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3001692","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}