Week #12
Bitcointalk Username: yuzheng
Bitcointalk Profile Link: https://bitcointalk.org/index.php?action=profile;u=320687
Proof of authentication number: 569

Facebook links:
1. https://www.facebook.com/bob.baser/posts/2378571628855129
2. https://www.facebook.com/bob.baser/posts/2382307545148204
3. https://www.facebook.com/bob.baser/posts/2385414034837555
4. https://www.facebook.com/bob.baser/posts/2391279937584298
5. https://www.facebook.com/bob.baser/posts/2394439757268316
6. https://www.facebook.com/bob.baser/posts/2397477693631189