IntroductionHelium is a prime example of web3 application focusing on real-world infrastructure. In over 3 years of running its own blockchain, Helium's business and governance model has undergone a number of iterations. By looking at these changes through the HIPs (Helium Improvement Proposal), we can see the evolution of a system and gain a lot of insights. In this article, we focus on the iterations of the reward mechanism under Helium's unique PoC (Proof-of-Coverage) mechanism. ...