{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain?","a":"Decentralization: Blockchain adopts a distributed network architecture, does not depend on centralized servers or institutions, reduces the risk of single-point failure, and improves the  stability and security of the system."}]}],"pr":"2471e63b459ad03e7757ef51226d34805b61a3773ca0d3c285157cbc1a8a0d1c"}