| 摘要 |
Signals are served from a serving device to a plurality of browsing clie nt devices connected via a network to the serving device. The output signals represent commands executable by the browsing client devices for displaying pages of human viewable data. A request from a browsing device is received in the form of a URL (uniform resource locator) that identifies human viewable data, the URL including a check sum. The validity of the check sum within said received URL is determined and output signals to the requesting browsing client device are served, such that: (a) when a URL is received that identifies said human viewable data and includes a valid check sum, first signals are processed which represent human viewable data; second signals are processed which represent formatting data that specifies locations on a page of said human viewable data when displayed; and said first signals and said second signals are processed to produce first output signals that are served to the requesting browsing client device; and (b) when a URL is received that identifies said human viewable data and includes an invalid check sum, second output signals (that are different from said first output signals) are served to the requesting browsing client device.
|
