{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are messages constructed in a blockchain?","a":"Messages in a blockchain are constructed through a series of interconnected blocks. Each block contains a certain amount of information and is connected to the previous block in chronological order, forming a chain-like structure. This chain is stored on all servers (nodes) in the entire network, ensuring the security of the data. To modify information in a blockchain, permission must be obtained from  more than half of the nodes and the information must be updated in all nodes, making it extremely difficult to tamper with the blockchain. The core features of blockchain technology include its resistance to data tampering and its decentralized nature, which together provide significant advantages in ensuring the authenticity and reliability of data."}]}],"pr":"1ec2d962713bf97a9bab5f5423cf3b3b71126d1f07dd211fcad5165017fc3756"}