{"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":"4702927","name":"Rock Ledge Property"},"operator":{"type":"operator","id":"L00772","name":"Eden Stone Co., LLC"},"controller":{"type":"controller","id":"0177640","name":"EVS Master Holdco LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00635","name":"William  Gesell et al"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"1950-01-01","validTo":"2012-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|M00635|1950-01-01|2012-12-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13459","name":"Fisher Stone"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"1991-05-01","validTo":"1994-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L13459|1991-05-01|1994-03-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10267","name":"Harlyn  Fisher"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"1991-05-01","validTo":"1994-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|M10267|1991-05-01|1994-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10267","name":"Harlyn  Fisher"},"object":{"type":"operator","id":"L13459","name":"Fisher Stone"},"validFrom":"1991-05-01","validTo":"1994-03-31","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L13459|1991-05-01|M10267|1991-05-01|148900"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13460","name":"Niagara Stone, Inc."},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"1994-04-01","validTo":"2019-11-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L13460|1994-04-01|2019-11-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10268","name":"Michael  Le Ferber"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"1994-04-01","validTo":"2014-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|M10268|1994-04-01|2014-09-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10268","name":"Michael  Le Ferber"},"object":{"type":"operator","id":"L13460","name":"Niagara Stone, Inc."},"validFrom":"1994-04-01","validTo":"2014-09-01","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L13460|1994-04-01|M10268|1994-04-01|148901"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0107361","name":"David  Wirtz"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"2013-01-01","validTo":"2016-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|0107361|2013-01-01|2016-03-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0115025","name":"Michael  Nast"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"2014-09-02","validTo":"2018-06-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|0115025|2014-09-02|2018-06-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0115025","name":"Michael  Nast"},"object":{"type":"operator","id":"L13460","name":"Niagara Stone, Inc."},"validFrom":"2014-09-02","validTo":"2018-06-28","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L13460|1994-04-01|0115025|2014-09-02|21643"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00635","name":"William  Gesell et al"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"2016-04-01","validTo":"2023-06-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|M00635|2016-04-01|2023-06-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00635","name":"William  Gesell et al"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"2018-06-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|M00635|2018-06-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00635","name":"William  Gesell et al"},"object":{"type":"operator","id":"L13460","name":"Niagara Stone, Inc."},"validFrom":"2018-06-29","validTo":"2019-11-03","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L13460|1994-04-01|M00635|2018-06-29|113652"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00772","name":"Eden Stone Co., LLC"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"2019-11-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L00772|2019-11-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0107361","name":"David  Wirtz"},"object":{"type":"operator","id":"L00772","name":"Eden Stone Co., LLC"},"validFrom":"2019-11-04","validTo":"2016-03-31","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L00772|2019-11-04|0107361|2013-01-01|19190"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00635","name":"William  Gesell et al"},"object":{"type":"operator","id":"L00772","name":"Eden Stone Co., LLC"},"validFrom":"2019-11-04","validTo":"2012-12-31","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L00772|2019-11-04|M00635|1950-01-01|113630"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00635","name":"William  Gesell et al"},"object":{"type":"operator","id":"L00772","name":"Eden Stone Co., LLC"},"validFrom":"2019-11-04","validTo":"2023-06-27","current":false,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L00772|2019-11-04|M00635|2016-04-01|113644"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0177640","name":"EVS Master Holdco LLC"},"object":{"type":"mine","id":"4702927","name":"Rock Ledge Property"},"validFrom":"2023-06-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|0177640|2023-06-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0177640","name":"EVS Master Holdco LLC"},"object":{"type":"operator","id":"L00772","name":"Eden Stone Co., LLC"},"validFrom":"2023-06-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"4702927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4702927|L00772|2019-11-04|0177640|2023-06-28|38098"}}],"coverage":{"historyRecords":8,"edgeCount":19,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4702927","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"}}