{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are batch updates executed in a blockchain?","a":"Prepare the batch update transaction: Organize the update requests of multiple orders into a single batch update  transaction, including the metadata of the updated orders (such as order ID, update content, etc.)."}]}],"pr":"94ea62ed7094518395e8cc686f15585fc5d154abb91e24d535f5084226118223"}