{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure the validity of Evidence during its processing?","a":"Timestamps: Each block in the blockchain contains  a timestamp recording the time at which the block was created."}]}],"pr":"3d76b389a39202938da14174c18d84df5465c4e0b7ef48e61a74c4954d760d4f"}