{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to decentralized exchanges?","a":"Distributed ledger: Blockchain technology records transaction information through a distributed ledger. Each node saves a complete copy of the ledger, and transaction information is disseminated and verified across  various nodes in the network, ensuring data consistency and security."}]}],"pr":"205b2e4911952c86d037ce23c90bc2770d4f231e7e26c1890aa9c764205b1bae"}