This book explains the basics of blockchain technology and explores its future possibilities. - Title: Blockchain - Author: Hiroshi Okajima - Series: BLUE BACKS - ISBN: 978-4-415-20410-3 - Theme: Understanding Blockchain Technology Thank you for viewing. It's in very good condition. It was stored in the office as a reference material, so please refrain from purchasing if you are concerned. 〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜 To prevent any problems: - No price negotiations as shipping is included. - I will respond to comments, but purchases take priority. - No returns accepted. Thank you for your understanding.