We won the Grand Prix award at Blockchain Hack-a-thon 2019 by METI
news release by METI, in English https://www.meti.go.jp/english/press/2019/0228_003.html
in Japanese, 日本語ページ https://www.meti.go.jp/press/2018/02/20190228004/20190228004.html
(1) Grand Awards (Awards of the Director-General of the Industrial Science and Technology Policy and Environment Bureau) Subject: Academic degrees, courses and career certifications Name of team Details of presentation Members DigiD System for batch-based management of portfolio for degrees and periods of school attendance
https://www.meti.go.jp/english/press/2019/0228_003.html