Following Successful Pilot, South Korea’s Jeju Island Launches Blockchain-Based Contact Tracing App to All Visitors The Jeju Safety Code App uses decentralized identity technology to provide secure, private COVID-19 contact tracing for Jeju Island’s 15 million annual visitors January 15, 2021 07:00 ET | Source: ICONLOOP ICONLOOP SEOUL, KOREA, REPUBLIC OF SEOUL, South Korea, Jan. 15, 2021 (GLOBE NEWSWIRE) -- (via Blockchain Wire) - Korea’s leading enterprise blockchain technology company ICONLOOP (https://www.iconloop.com/en/) and the Jeju Special Self-Governing Province today announced that its blockchain-based contact tracing system ‘Jeju Safety Code’ is now fully operational following the successful completion of a pilot program. Jeju Safety Code provides secure, private contact tracing for Covid-19 for Jeju Island’s 15 million annual visitors.