In Shorter, any user can get profit by calling contractual interfaces.
Go to Farming (opens new window) and click on "Grab!" on the top right.
Confirm the transaction in Metamask, you should receive the new rewarded IPISTR tokens.
Note: Your transaction might fail if someone grab ahead of you in this period
This bounty is given away as a decided reward for making tweaks to the states of entire trading components.