{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain implement the revocation and shutdown of programs?","a":"Distributed ledger technology: Blockchain distributes data across multiple nodes, forming a decentralized network. Each node stores complete ledger data, which means that a program reversal and termination  operation performed on a single node will impact the entire network. In this way, blockchain ensures data consistency and reliability."}]}],"pr":"a89c42c4c2fc63cfb38ea94c69482eac0585ace3d2177c023618967328e5ec60"}