{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the account balance check steps and best practices in blockchain validation nodes?","a":"Getting account balance:  First, validation nodes need to obtain the balance information of the corresponding account in the blockchain network. This is usually achieved by calling the API interfaces provided by the blockchain or querying the blockchain ledger."}]}],"pr":"35dd817d86135e2c55a35d17cf2ff3e4168a2598d913607e3d96b2fd788b2d89"}