{
  "service": "fairseal-notary",
  "endpoints": [
    "POST /v1/notarize                 — notarize {schema, payload_hash, metadata} (Bearer API key, or x402 payment: $0.02 USDC on Base)",
    "GET  /v1/notarize/:receipt_id     — receipt status + Merkle proof + verification (public)",
    "GET  /v1/notarize/schemas         — supported schemas (public)",
    "GET  /v1/notarize/status          — service status (public)"
  ]
}