Proof of registration post link: https://bitcointalk.org/index.php?topic=4491261.msg40521915#msg40521915
WEEK 13 (10.09 - 16.09)
Twitter Retweet links:
1. https://twitter.com/alasaarela/status/1039084477316820992
2. https://twitter.com/inbot_int/status/1039776927589052417
3. https://twitter.com/APompliano/status/1039218983021498368
4. https://twitter.com/inbot_int/status/1039437196330258432