{"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":"In the smart contract, write a function to verify the incoming transaction version number. If the transaction version number is lower than the maximum supported version number,  reject the transaction."}]}],"pr":"7c4636c38a7eaf07b9b55f922118706aa18653e85c2d340b5126923ee7e9b6bb"}