Zhao Changpeng: Sign in the YZi Labs portfolio

ChainCatcher message, Zhao Changpeng forwarded a tweet about "Sign launching a blockchain technology stack S.I.G.N. specifically designed for sovereign nations." He stated: "I might have helped a little bit in this matter. Of course, I just had a chat, didn't write any code. I made a few connections and gave some introductions in several countries. Sign is a company in the YZiLabs portfolio (minor shareholder).