{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain solve the problem of data credibility?","a":"Decentralization: The data storage and processing in blockchain networks are distributed across a large number of nodes, without a single central controller. This decentralized structure makes  the data more secure and reliable, because even if some nodes fail, the overall system remains intact."}]}],"pr":"f57a4446994e7c10204a28076d1ba3f88780b21902e1444c1962c42145a2525d"}