{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the differences between cold wallets and hot wallets in blockchain?","a":"Operations: Cold wallets require manual operations for each transaction, such as copying  and pasting the wallet address, while hot wallets can be easily operated through mobile apps or websites, making them more convenient."}]}],"pr":"a88db1defa929805f14cf6c5c232956c2f8b28e02cba051735713f848fa88e5d"}