6. Proof-Based Routing: PoTU and PoLP

RouterLink is built on a proof-based routing system that connects execution, performance evaluation, and economic settlement into a single verifiable flow.

PoTU and PoLP Mechanism

Request Lifecycle

Request → Routing → Execution → Proof → Settlement

Proof of Token Usage (PoTU)

PoTU measures AI usage at the protocol level. Each routed request generates a signed usage receipt recording:

• Request and routing path

• Service endpoint involved

• Usage metrics relevant to billing

PoTU ensures: Usage cannot be fabricated, settlement is verifiable, disputes resolved against signed receipts.

Proof of LLM Performance (PoLP)

PoLP measures how well services perform through cross-node observation, not unilateral reporting. Metrics include latency, availability, stability, and error patterns.No single node defines performance. Aggregated observations determine routing priority and reward weighting.

Proof-Driven Economics

Proof	Measures	Drives
PoTU	Who consumed what	Revenue attribution, settlement
PoLP	How well delivered	Routing priority, quality bonuses