That's because the eventual rollout of the virtual yuan could roil cryptocurrency markets if Chinese officials tighten regulations at the same time, according to Phillip Gillespie, chief executive of crypto market maker and liquidity provider B2C2 Japan, which mainly works with institutional investors.

"Once a digital yuan is introduced, that's going to be one of the biggest risks in crypto," Gillespie, who previously worked in currency markets for Goldman Sachs Group Inc., said in an interview. "Panic selling" is possible if the new rules end up sucking liquidity from trading platforms for digital coins, he said.

Central banks' power to issue virtual money and proscribe rivals is one of the key risks for the crypto sector. Chinese citizens are already banned from converting yuan to tokens but the practice continues under the table using Tether, a digital coin that claims a stable value pegged to the dollar. The money parked in Tether then gets routed to Bitcoin and other tokens.