How to Purchase Polkadot (DOT) Using Hello Art (HTT) in China

To buy Polkadot using Hello Art, first, find a cryptocurrency exchange that supports the DOT/HTT trading pair. Create an account, complete the KYC process to verify your identity, and deposit your HTT into your exchange wallet. Locate the DOT/HTT pair on the trading platform and place an order to exchange your Hello Art for Polkadot. If the DOT/HTT pair is unavailable, you can first exchange Hello Art for a stablecoin like Tether (USDT) or a fiat currency such as CNY, then trade that for Polkadot. Be mindful of potential exchange fees, which vary by platform and can impact the overall cost of your transaction.