{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the irreversible characteristic of blockchain technology achieved?","a":"Decentralization: Blockchain adopts a decentralized network architecture, with data storage and processing distributed across multiple nodes across the entire network, without a single central controller. This decentralized feature makes  the blockchain system less susceptible to tampering, as attackers need to break into multiple nodes simultaneously to change data."}]}],"pr":"fd937c62b770b44988861b2c9f447635c7d7f4d94c34ec4ee8db001dba13a10d"}