vertical-align / copyright

Hello,

Is it possible to have text displayed at the bottom
of a blank page, without setting it in a footer, and
without "pushing" it with empty paragraphs?

By default the copyright mention (for a book) is
rendered at the top of the page -- ie, it is rendered
at the begining of a page, which means it comes at
the top.

We would like to have it at the bottom of this
(otherwise empty) page: how should we proceed?

Regards,
EB