{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is blockchain?","a":"Blockchain is a decentralized database technology that achieves transparent and secure data maintenance by organizing data into an immutable and tamper-proof blockchain data structure based on timestamp order. The core advantage of blockchain technology lies in its decentralized and reliable data  storage and transmission methods, which can effectively reduce trust costs and improve transaction efficiency. In a blockchain, each participant holds a complete ledger. When a transaction occurs at a certain node, the transaction information is broadcast to all nodes, and everyone cooperates to verify and record the transaction in their respective ledgers. This consensus mechanism ensures the consistency and authenticity of the data, thereby realizing decentralization without a centralized authority."}]}],"pr":"8695139c9a9ffb24bb8910ea6a33c2298708608ec780ce7132f151e6199ccee3"}