Prove a fact about private data without revealing the data: validates text integrity and r

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xfee13309251b632317ea2d475d6aba7e7e0219e6",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "DnpefxqxUYSPZ6tFtWe7WFUVpACJ8LifeyafRJZvmvkA",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "cpdv_data": "order #4471, total $129.00, paid 2026-05-24"
        },
        "bodyType": "json",
        "method": "POST",
        "pathParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "proof_id": "private_data_verification-example-id",
          "proof_url": "https://centry.cybercentry.co.uk/results/proof-example"
        },
        "type": "json"
      }
    },
    "routeTemplate": ":var1",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "cpdv_data": {
                  "description": "Data (e.g., Test Data)",
                  "type": "string"
                }
              },
              "required": [
                "cpdv_data"
              ]
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "proof_id": {
                  "description": "ZKP Verification ID",
                  "type": "string"
                },
                "proof_url": {
                  "description": "ZKP Verification URL",
                  "type": "string"
                }
              },
              "required": [
                "proof_id",
                "proof_url"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://centry.cybercentry.co.uk/api/services/private_data_verification"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://centry.cybercentry.co.uk/api/services/private_data_verification");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://centry.cybercentry.co.uk/api/services/private_data_verification")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header