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its so detaled
Applying a copyright notice to a work has not been required since March 1, 1989. A notice may still provide practical and legal benefits. Notice typically consists of the copyright symbol or the word “Copyright,” the name of the copyright owner, and the year of first publication.
When deciding to use a work protected by copyright, the general rule is to seek permission from the copyright owner. Under the copyright law, a copyright owner may authorize activities that fall under the exclusive rights of copyright.
The copyright in a work initially belongs to the author(s) who created that work. When two or more authors create a single work with the intent of merging their contributions into inseparable or interdependent parts of a unitary whole, the authors are considered joint authors and have an indivisible interest in the work as a whole. By contrast, if multiple authors contribute to a collective work, each author’s individual contribution is separate and distinct from the copyright ownership in the collective work as a whole.