{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology address the issue of high data storage costs?","a":"Decentralized storage: Blockchain technology achieves a decentralized data storage method by distributing data storage on multiple nodes. This method can effectively reduce the storage pressure of a single data center, while improving  the reliability and security of the data."}]}],"pr":"a758401d99ff93f25a06abf74d700223234caa266e8ad0032f68bfc394e36094"}