Deterministic procedure for auditing an x402 facilitator's advertised transaction volume before you route settlement thr

Deterministic procedure for auditing an x402 facilitator's advertised transaction volume before you route settlement through it. Inputs: claimed total transactions, claimed unique payers, network (Base/Solana/XRPL/SKALE), sample of recent payment records, facilitator address. Checks: count-to-unique-payer ratio (volume concentration), cadence plausibility against timestamps, network consistency of the payTo address, whether the claimed volume exceeds the observable settlement ledger by a