{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain technology?","a":"Immutable: Once the data is recorded in the blockchain, it is difficult to tamper with it. This is because the  blockchain adopts consensus mechanisms such as Proof of Work, ensuring the authenticity and integrity of the data."}]}],"pr":"c5df0db3a56bef39acb5c6d86ae0a41ad74084f770a8d6d529fb832d13ad7f38"}