{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why is blockchain considered a revolutionary technology?","a":"Data Security: Blockchain uses encryption algorithms (such as SHA-256) and timestamp technology to ensure the security and integrity of the data. Each block contains the hash value of  the previous block, forming a chain structure. Once the data in a block is changed, it will cause a chain reaction in the subsequent blocks, resulting in the entire chain being invalid."}]}],"pr":"b581437ab092d2eb00fa9fd44a6d7abef0508cb51c80dfe1b3d43eb403ff53a6"}