{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain verify the validity of transactions?","a":"Confirm transaction input: Firstly, the blockchain system will check whether the transaction input is valid. This includes confirming whether the amount of the transaction input is within a reasonable range, does not exceed the total coin volume across the entire network, and is  not less than 0."}]}],"pr":"db9f62803cd73e2bf6531d0d16edd5f250d8e1132d62c75ae18a49d54d3efcae"}