{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do I set the maximum supported transaction version in a blockchain?","a":"Analyze the source code of the existing blockchain protocol to  understand the implementation of transaction versions and related parameters."}]}],"pr":"a9f82a0dda1d07b000f64c292ef58760c5d72fc39aaea2df42aff1368e292dc5"}