The Helium Network utilizes a unique consensus protocol known as Proof of Coverage (PoC) to ensure the integrity and security of its decentralized network. PoC is a mechanism for validating the coverage of a given area by a Helium Hotspot. This is done through a combination of GPS data, radio signal strength, and other sensor data from the Hotspot.
When a Helium Hotspot is first activated, it is required to provide proof of coverage for the area it is supposed to serve. This proof is verified by the network, and the Hotspot is granted the ability to participate in the consensus protocol.
Proof of Coverage is an important aspect of the Helium Network, as it ensures that only Hotspots that are providing coverage to a specific area are able to participate in the consensus protocol. This helps to prevent Sybil attacks, where an attacker creates multiple fake Hotspots in order to gain control of the network.
As the Helium Network grows and expands, the Proof of Coverage algorithm will continue to evolve and improve. This will ensure that the network remains secure and that only legitimate Hotspots are able to participate in the consensus protocol.