{"free":true,"product":"Delivery Receipts","schema":"robotsshop.delivery-receipt.v1","public_key":"098db10863070998c78ca9aab45c82acadd8dfc180d83f6c106b60c11ae8f8e4","usage":{"lookup":"GET /v0/receipts?tx=0x... — free single receipt by tx hash","verify":"GET /v0/receipts?verify=<receipt-json> — free signature check + fidelity attestation","batch":"GET /v0/receipts?batch=1&limit=10 — $0.01 x402 signed receipt ledger"},"seller":"RobotsShop"}