PANews reported on September 23rd that Zhao Changpeng, when retweeting a tweet about Sign launching SIGN, a blockchain technology stack designed for sovereign nations, said: "I may have helped a little bit in this matter. Of course, it was just a chat, no code was written. I made a few connections and introductions in several countries. Sign is a company in YZi Labs' portfolio (YZi Labs is a minority shareholder)."

The market shows that SIGN briefly touched $0.135 and is currently trading at $0.10508, with a 24-hour increase of 22.77%.