{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology prevent spam and malicious activities?","a":"Immutable data: Data in blockchain technology uses encryption algorithms, and once information is recorded on the blockchain, it is difficult to tamper with. This makes it difficult  for spammers to easily change or delete their records on the blockchain, thereby preventing them from sending spam."}]}],"pr":"41d44957e3036d5febdda6dc3a272887a7a53a1bae679aff6b0b7bd9524c00b7"}