{"id":"sanborn2025openletter","URL":"https://www.elonka.com/kryptos/OpenLetterAug2025.html","type":"manuscript","title":"Open letter to the Kryptos community announcing the sale of K4","author":[{"given":"Jim","family":"Sanborn"}],"issued":{"date-parts":[[2025]]},"year-text":"2025","container-title":"Mirrored on elonka.com, 14 August 2025","catalog-key":"SRC0D7HSY1M1982"}