As for me curator reward is a reward you receive when you vote (like) on a post. At least 25% of the rewards always go to the author, the other 75% is divided between the author, the curators and the commenters. Curation rewards are paid out 100% in STEEM POWER, which increases the power of your up-votes, so you help the content creators and yourself!
The smallest bracket where curators are able to obtain rewards is the period between 3 minutes and 15 minutes after post publication. In this bracket when a curator upvotes, they are able to work towards 10% of the total 25% curator rewards while the author receives 75% of it.
Word count : 114