http://bounty.opetfoundation.com/r/sentus7
The maximum number of tokens you can receive is 610 OPET if you complete all the steps and meet the requirements bellow:
1/ Follow them on Twitter and retweet this Tweet
2/ Be a part of their Reddit Community
3/ Follow their LinkedIn
4/ Like their Facebook Page
5/ Subscribe to their YouTube Channel and watch their Video
Only the top 5,000 public Twitter accounts with the highest number of followers will receive the bounty.
Join here: http://bounty.opetfoundation.com/r/sentus7