{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"As a distributed ledger, what are the advantages of blockchain?","a":"Immutability: Blockchain ensures the immutability of  data by chaining together blocks, making it difficult to modify or delete existing data. This provides a secure and reliable platform for transactions and data storage."}]}],"pr":"24d52199850fb0c5326c8d325fb6e96580200beab732cbb2dd3380613bb6261f"}