{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What interfaces does the evidence module need to implement in a blockchain?","a":"Data hash algorithm: Generate hash values for  uploaded data to ensure data consistency and integrity."}]}],"pr":"c85bfa3a44f4a9accfe0c742f6021fa6bc32fa5701988237a2185c4052a24eea"}