{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the data immutability achieved in blockchain?","a":"Decentralized storage: Blockchain uses a distributed node consensus approach to store data, storing data on multiple nodes rather than a single centralized server. Therefore, to modify the data on the  blockchain, attackers need to simultaneously modify the data on all relevant nodes, which is virtually impossible in practice."}]}],"pr":"c37f1bf10cd87a74b261ee2ab6a24fcdff116f943ea45bfc43b7920ae13164aa"}