What Proof of Coverage proves
Proof of Coverage attempts to prove that a hotspot is providing wireless network coverage from a real location. That is different from proving computation or stake. The scarce resource is useful infrastructure in the physical world.
The basic pattern uses beacons and witnesses. A hotspot broadcasts, nearby hotspots report what they observed, and the system evaluates whether the evidence looks consistent with legitimate coverage.
How Helium uses PoC
Helium's HIP-70 redesign moved Proof of Coverage accounting toward an oracle-based model. Hotspots are responsible for beaconing, witness receipts are reported, verifier oracles analyze the data, and reward logic distributes emissions based on validated activity.
That architecture reflects a broader DePIN challenge: physical infrastructure is harder to verify than purely digital transactions. The system has to detect gaming, spoofing, poor placement, and useless coverage while still rewarding real operators.
Chains that use Proof of Coverage
Helium is the best-known Proof of Coverage network. After its move to Solana, Helium's wireless networks and token economies rely on Solana for base-chain settlement while PoC logic focuses on the network's coverage and data-transfer activity.
Other DePIN projects may use proof-of-physical-work language, but readers should check exactly what is being measured, how it is verified, and whether demand exists for the infrastructure.
Tradeoffs readers should know
Proof of Coverage can reward useful infrastructure, but it can also be gamed if location, radio activity, or witness patterns are weakly verified. Strong anti-gaming systems are essential.
A good Helium review checks hotspot density, actual data transfer, reward changes, oracle design, hardware economics, and whether coverage maps translate into paying network usage.