Only for Yiducity e-Citizens
YD Smart Card, Smart e-Wallet, Smart Contracts, Expo Coin, Qiao Tag and iStores based on Yd Bchain the blockchain-like to protect and simplify your activities and transactions.
YD Smart Card, Smart e-Wallet, Smart Contracts, Expo Coin, Qiao Tag and iStores based on Yd Bchain the blockchain-like to protect and simplify your activities and transactions.