{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What role do consensus mechanisms in blockchain play in transaction confirmation?","a":"The consensus  mechanism in blockchain plays a crucial role in transaction confirmation, ensuring that all nodes in the blockchain network reach a consensus in a short period of time and validate and confirm transactions. Through the consensus mechanism, blockchain can achieve a decentralized trust system, enabling transaction parties to conduct transactions without relying on third-party trust institutions, reducing transaction costs and improving transaction efficiency. At the same time, the consensus mechanism also ensures the security and stability of the blockchain network, preventing issues such as data tampering and double-spending attacks. In summary, the consensus mechanism plays an essential role in blockchain, laying the foundation for building a reliable decentralized system."}]}],"pr":"aea293f7ea82b73c6f670e167e2abb5a046b4d2103cffb61b27b0a23c7f2bb11"}