{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does sharding technology in blockchain technology solve the problem of cross-shard communication?","a":"Cross-shard communication protocol: In order to achieve communication and data exchange between shards, the blockchain network needs  to establish a cross-shard communication protocol. Through this protocol, each shard can efficiently share information and"}]}],"pr":"b9d21fd1a463043b2b7c400431d21ecda579d34253043435f49837910fa0e7b2"}