{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure security?","a":"tamper-proof mechanism: Once data is recorded  on the blockchain, it is difficult to modify or delete it, providing a tamper-proof mechanism that prevents fraud and tampering with data."}]}],"pr":"6747eff969b12738b51f2b6fa3ba4e50c53e982e02057e4b21cb2c06ddb0a18c"}