Evidence row 751055

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.postcodecontext.uk/api/v1/batch"
    ]
  ],
  "name": "PostcodeContext.UK",
  "owner_address": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
        "scheme": "exact"
      }
    ],
    "description": "POST /api/v1/batch - Bulk UK Postcode Demographics & IMD Enrichment (1 to 50 postcodes with cohort aggregation and spatial summaries)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "postcodes": [
                "SW1A 1AA",
                "BB7 3BB",
                "EH1 1YZ"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "queryParams": {
              "format": "json",
              "view": "full"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "cohort_summary": {
                "average_affluence_score": 76,
                "average_house_price_gbp": 445000,
                "dominant_persona": "Affluent Suburban",
                "total_matched": 3,
                "total_requested": 3
              },
              "results": []
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v1/batch",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "postcodes": {
                      "default": [
                        "SW1A 1AA",
                        "BB7 3BB",
                        "EH1 1YZ"
                      ],
                      "description": "List of 1 to 50 UK postcodes to enrich in bulk",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 50,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "postcodes"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "format": {
                      "default": "json",
                      "enum": [
                        "json",
                        "flat",
                        "csv"
                      ],
                      "type": "string"
                    },
                    "view": {
                      "default": "full",
                      "enum": [
                        "full",
                        "summary",
                        "property",
                        "demographics"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792929344/bazaar-icons/9d2de4e5c0743e69.jpg",
    "lastUpdated": "2026-10-28T02:46:26.785Z",
    "quality": {
      "l30DaysTotalCalls": 14,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-28T02:46:26.397Z"
    },
    "resource": "https://api.postcodecontext.uk/api/v1/batch",
    "serviceName": "PostcodeContext.UK",
    "tags": [
      "uk-postcode",
      "demographics",
      "property",
      "census",
      "geospatial"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "POST /api/v1/batch - Bulk UK Postcode Demographics & IMD Enrichment (1 to 50 postcodes with cohort aggregation and spatial summaries)"
}

What the leaf hashes

{"body":"4b9095328ca189c0f9f527d1f131e5cadbf8f06e633586b825edfe1d9ede0a98","id":751055,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178703402951,"prev":527267,"subject":"x402_bazaar:https://api.postcodecontext.uk/api/v1/batch","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x276e609f2efc46002b903e8c9b9d14eefcfdede469958501ae883d0330e8e36f
2. 0x23e8bb07c79dbc721fd436443b6d697c3838de2a980803debb5ef02fbba628ef
3. 0x567abce5b4830522390a0f7083106bd255d9103f45860cb62ccc1b07e3e7fec7
4. 0x78f1fbf70d7ab0921bd3b7e52bd0d718c9971cccb8f37c65720dfa7207a16b3d
5. 0x90cf98e5507fa9ea07e455e81eb8e1e4a699a08706480ba81beb1faa18c9ffd6
6. 0x05c7925cefa2089abc21a7676e63e43fe2d8c0069aaa0c1f7011aedcaa5186b2
7. 0x10ccdf0509f6ec99365eea54aee9bf3d8446cdc2b29b560e882ae9a9e62561ab
8. 0x873bd575100ee26111ebdb84333e04a1cd441fdaec54e3f4bd8ec411e12e1244
9. 0x907b275dcb63456183734bb4bf05b3a99a16f4e0e0f4b50f1721b12650558769
10. 0xd8c9632c0d3ea201f62ca59e9ba5628f465ed43f9a747d88c85604e589f86e69
11. 0xf0873535eca761a90823eebef76b17956c815fea0d6e8aaf3acf7d22a7d6bf3f
12. 0xd5cf3949d64385f93139a7fe587a2a2a5914492d5173ba33feced3c7038c0d7f
13. 0xfcc0286dc0eb69aad96b886d1f2a42a5bc1d90d84cfc212c4ef6bde6a564a1de
14. 0x5c170d609340e1f702f31fcdd7742289f0913d4395f688b3409031b758c69eae
15. 0x8d500b42a7bdba5e17ebd9e6a404f2de5260cf3420865b41e7de8c69434ce413
16. 0xaeb1503e5d0d358b256ba97a10178c357ddb8f55cc961925ccf0458aae5ebcae
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae