Mentor Graphics Corporation  
[private]  
Wilsonville, OR 97070-7777  
[private]  
www.mentor.com

March 30, 2011

Via Electronic Mail Only

GitHub Inc  
Attn: DMCA Takedown  
589 Howard St., 4th Floor  
San Francisco, CA 94105  
copyright@github.com

Re: Notice to Takedown Infringing Works under Provisions of the Digital Millennium Copyright Act  
MGC Ref No.: L10189

Dear GitHub,

On behalf of the copyright holder, I notify you of content you host that infringes upon one or more copyrighted works, as provided by 17 U.S.C. § 512(c)(3), in the format specified by you.

1. The copyrighted works infringed upon are the Nucleus® real time operating system, both source code and related documentation.
2. All material available at the following address infringes Mentor Graphics Corporations copyrighted works. <https://github.com/justinwuchina/Silver/tree/master/src/osal/nucleus>
3. GitHub Inc. may contact the copyright holder through me at the following address.  [private]
4. The owner/administrator of the infringing works is unknown to Mentor Graphics Corporation.
5. I have a good faith belief that use of the copyrighted materials described above on the infringing web pages is not authorized by the copyright owner, or its agent, or the law.
6. I swear that the information in this notification is accurate, and under penalty of perjury, that I am authorized to act on behalf of the owner of an exclusive right to the allegedly infringed works.

Sincerely,  
[private]  
Dated: March 30, 2011