[wp-hackers] WP oldest file ?

[Michael E. Hancock]

From: "Malaiac" <malaiac at gmail.com>
> I'm looking for an "almost sure" way to know if a website is running
> WordPress, by pinging a file
> What could be the oldest available file in a WP release ?
> wp-load.php ? the forbidden wp-includes directory ?

wp-admin?????

or pick something else from http://wordpress.org/wordpress-0.71-gold.zip

MichaelH