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Includes a copyright release.
The Affidavit of Original Work agreement is used when you need a signed statement from an author stating that the material they provided is an original work of that author. You can not always take an authors word that what they provided is unique, it could have been lifted from another source. At the very least, get it in writing that the author can not refute at a later date.
This version also includes a copyright release and indemnification.