Stephen Bain wrote:
Since copyright is automatically acquired on creation of the work (this is the case in all relevant jurisdictions), it can be presumed that the work is copyrighted unless there is evidence to show that the copyright has expired (evidence of the date of creation) or that the work has been released into the public domain or freely licenced (evidence of such a release or grant of licence).
Another very important exception is a work which was not copyrightable in the first place.
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