{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a blockchain, how do you verify if the address provided in a transaction is valid?","a":"Validate the address: Use  an address validation algorithm such as SHA-256 or Keccak-256 to calculate the provided address. Compare the calculated hash value with the pre-published address validation code. If the match, it indicates that the address is valid."}]}],"pr":"75a9ce8a0ee6729cd5678fab3d6549f77b83e0e3dd0216c4bdcd1686971e2ed0"}