Musings on copyright dates

3 January 2009

In the context of a blog, with lots of posts from different years, how would copyright apply? Would each post on the blog have a separate copyright? Or would the blog have a copyright as a whole? Or is it up to the author how it should work?

Say I added a footer to the bottom of my blog in the year 2005, which reads:

Copyright © 2005 by Jeremy Visser. All rights reserved.

(Please note that the copyright notices in this post are purely for discussion and illustrative purposes, and are not intended to state the true copyrighted nature of any of the content on this website.)

Now, it’s the year 2009, so there seems to be two popular ways to update this kind of line:

  1. Copyright © 2005-2009 by Jeremy Visser. All rights reserved.
  2. Copyright © 2009 by Jeremy Visser. All rights reserved.

So in the latter one, the copyright date is simply bumped up to 2009. Is it legal to arbitrarily bump the copyright expiration date like that without formal renewal?

In Australia, this is not a problem, as copyright expires 70 years after the author’s death — it has nothing to do with the publication date. In which case, it does not make sense to add a year to copyright declarations of Australian works. I think the following would do fine for me:

Copyright © by Jeremy Visser. All rights reserved.

It would then be up to somebody to look up the date of my death to find out if any of my works are in the public domain.

So why do we add dates to copyright notices? In the United States, the case is the same as Australia — copyright expires 70 years after the death of an author.

I could not find any information on how copyright expiration applies to a corporation in Australia (after all, a corporation cannot die), but in the United States, copyright on a work produced by somebody as part of their official duties while working for a corporation expires 95 years after publication or 120 years after creation (whichever is shorter). In this case, adding dates to copyright notices does make sense.

So, it seems to me that the reason we all add dates to our copyright notices is because we are all sheep and simply copy each others’ copyright notices. Ironic, eh?

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