{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the key bottlenecks of blockchain technology?","a":"Data storage  capacity: Blockchain technology adopts distributed storage, requiring each node to save all the data of the entire blockchain. As the blockchain continues to grow, the required storage space for nodes will also continue to expand. This increases the cost of storing and managing blockchain data, limiting the widespread application of blockchain technology."}]}],"pr":"800502a8f6b1b1655c13ed73b29ef47d828ac83d0ea96737927a29c1211f3eb1"}