Bitcoin trade in Japan accounts for about half of the global trade volume. That number has surged since the government passed a new law earlier this year, recognizing bitcoin as a legal form of currency. CNBC's Akiko Fujita reports. ----- Subscribe to us on YouTube: http://cnb.cx/2wuoARM Subscribe to CNBC Life on YouTube: http://cnb.cx/2wAkfMv Like our Facebook page: https://www.facebook.com/cnbcinternational Follow us on Instagram: https://www.instagram.com/cnbcinternational/ Follow us on Twitter: https://twitter.com/CNBCi