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Question Protected by gnat

occurred Apr 22, 2018 at 7:03

applied copyright tag as question involves both license & copyright

edited Sep 19, 2013 at 19:18

user53019

licensing open-source copyright

asked Sep 13, 2013 at 7:25

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Who owns modifications to open-source software?

Suppose a piece of software is distributed under some permissive license, e.g. BSD. Now, I modify this software and want to distribute my derivative work. My questions:

Who is the owner of the derivative? Is it the original author, the new author or there is joint ownership?
Is a copyright notice (say under the original copyright) sufficient to establish the new ownership?

licensing open-source