Interesting idea displayed at the bottom of the page. Note that I've removed the key string and replaced it with {redacted}. Ultimately, though, I can imagine a scheme like this wouldn't work very well in general use - that is why we have unique URLs.:

This page can be found by searching the Web for the 21-letter string {redacted}. Please do not put this string in any document that could wind up on the web--including email messages and pdf and Word documents. You can refer to it in Web documents as "the string obtained by removing the - from uid-lamporttlahomepage".