npm i @itechsmart/prooflink-verifier
node audit.mjs # verify newest 50 + chain linkage; exit non-zero on any failure
node audit.mjs <id> # deep-verify one receiptDesigned for a cron job or healthcheck: it exits non-zero the moment a receipt fails verification or the chain linkage breaks, so it wires straight into alerting. Verifies against the public ledger — no account, no secrets.