{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of timestamps in blockchain?","a":"Preventing tampering：Timestamps give the data in the block timeliness：once the data is recorded in the block, it is difficult to tamper with it. To tamper with the data, one must simultaneously tamper with the timestamp of the current block and all subsequent blocks, which is virtually impossible in the  decentralized environment of the blockchain."}]}],"pr":"18c776f74c68be474c05b4275b187db9e7b206a36d09aca97a04dbf1d9534503"}