PoP stands for Proof of Play (PoP), this is a new way of implementing a consensus algorithm that tries to get the best from PoW and PoS.
So, the PoP has two souls in one body, one soul that handles the operational aspect of the consensus algorithm, and the other that controls the remunerative part. To participate in the PoP, a user must stake n IDC coins. The more IDC coins the user stakes, the more frequently they will be selected for the validation process, increasing their chances of receiving a reward for actively participating in the algorithm. However, if a player is not active, they will be penalized and receive fewer rewards from the system. If inactivity persists, the player will be removed from the PoP entirely until they start actively participating again.