{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the issue of duplicate minting or duplicate signatures be avoided in a blockchain?","a":"Implementing smart contracts: Smart contracts can be used to enforce conditions and terms  of transactions, which helps in preventing unauthorized transactions"}]}],"pr":"bff7c8b4fb8946c044ddab1112b1451bd80dc6e852f4e0db2fe908d44ef00702"}