Correct: applies as soon as work is created, copyright symbol is not proof that the work is copyrighted , ownership is by default to the author of the work that holds the copyright on the work, copyright ends 70 years after the death of the author, linking allows copyright holder to maintain control of their content , Incorrect: ideas, concepts and math equations can be copyrighted, the author doesn't need to go through the process to register the copyright to keep from infringement, author has to always register work at www.copyright.gov/ , ownership is always to author even if if employer is known as "work for hire", linking is the same as copying/pasting ,

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