{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the attributes of valid evidence types in a blockchain?","a":"Transparency: The blockchain records transactions in a public ledger, which can be accessed by anyone. This feature promotes  transparency and accountability in the system."}]}],"pr":"75780703936b1d32f75b1e1ecc85502ca6b354df1d7aafb7149ca55b63a6a1aa"}