{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the exchange module in blockchain ensure the security of accounts?","a":"Decentralized architecture: The exchange operates  decentrally based on blockchain technology, whereby data is not dependent on a single node but is distributed across multiple nodes. This decentralized feature can effectively prevent hacker attacks and data tampering, ensuring the security of user assets."}]}],"pr":"b02a6c677c4d53c69fd6a63e4d05d50b5ec737171db6fdb8da0a685875675256"}