{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology achieve traceable and verifiable transaction history?","a":"Decentralization: Blockchain adopts a decentralized network architecture, where data is not managed  by a single central institution, but is distributed across multiple nodes. This design makes it difficult for transaction information to be tampered with in the blockchain network, ensuring the authenticity and reliability of the data."}]}],"pr":"65ed31b0ce8647dcb989585339b105c07cbbd2d42323487f1656f195d7f1b9f8"}