LikeCoin aims to reinvent the Like by realigning creativity and reward. They enable attribution and cross-application collaboration on creative contents. With a reinvented Like button and their unique LikeRank algorithm, they trace content footprint and reward content creators by Proof of Creativity mechanism. While blockchain miners usually understand mining as solving a mathematical problem, it does not have to be the case. With a focus on rewarding content creators, LikeCoin measures the importance of creative contents, i.e. creativity, and allows content creators to mine LikeCoin with their creative contents. We call the mechanism proof of creativity, or PoC. PoC defines creativity in two dimensions: 1. The higher the LikeRank of a creative content is, the more creative it is. 2. The more Likes a creative content receives, the more creative it is. A creators pool of 1bil, which accounts for 50% of total number of LikeCoin tokens in the long run, is reserved as the mining pool. At each day t, x LikeCoin will be minted from creators pool for distribution to content creators