Evidence row 2200639

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.postcodecontext.uk/api/v1/compare"
    ]
  ],
  "name": "Postcode Context",
  "owner_address": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
        "scheme": "exact"
      }
    ],
    "description": "GET /api/v1/compare?postcodes=... - Multi-Postcode Comparative Demographic Synthesis (comma-separated query string)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "postcodes": "SW1A 1AA,BB7 3BB"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "comparison_synthesis": {
                "highest_affluence": {
                  "postcode": "SW1A 1AA",
                  "score": 94,
                  "tier": "Ultra-Prime"
                }
              },
              "postcodes": [
                "SW1A 1AA",
                "BB7 3BB"
              ]
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v1/compare",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "postcodes": {
                      "default": "SW1A 1AA,BB7 3BB",
                      "description": "Comma-separated list of 2 to 5 postcodes (e.g. SW1A 1AA,BB7 3BB)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "postcodes"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "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": "2026-11-02T10:52:59.917Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T10:52:59.811Z"
    },
    "resource": "https://api.postcodecontext.uk/api/v1/compare",
    "serviceName": "Postcode Context",
    "tags": [
      "postcode",
      "demographics",
      "property",
      "census",
      "geospatial"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "GET /api/v1/compare?postcodes=... - Multi-Postcode Comparative Demographic Synthesis (comma-separated query string)"
}

What the leaf hashes

{"body":"8cce264049ee12a041bdf9da1cd9adf2906a90e864fa48bfc76596f65f6b960a","id":2200639,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646797853582,"prev":1038960,"subject":"x402_bazaar:https://api.postcodecontext.uk/api/v1/compare","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xcce6f8c33de2ba0a6bd06908e1dc8d6ea35649db260cb776bb1fba49ee478080
2. 0xa5a1afa586d7c8f9fdcf7806f215ce3fa0193e3b20e620b96c4c450951752528
3. 0x527724fe5757eec671f9ab1e8b3881cb27bd4b555c580ee01aa2bdc515bb001f
4. 0xd4ee6922b6eaf4bc123a4617fb9ea44297e3539c52ee0e5c1e01c4e24fb609ac
5. 0x1d0c16bd130fb0385127f65f266d318b90f4bbc71e1b20ba7b214c60d529f18f
6. 0xb69a877c0682b38d5f68cdb651491b49f5b19d8b256997743ef029807ffa3bb4
7. 0xa8ecf7cf531e2606349960a47214106fc84af159b4722db5ab516b7c17f3b063
8. 0x0ed5ed6739cfba4bbdbf543225001a8de54890987f904dad40e7619dd235d5e5
9. 0x48619ac3ad9adc0a6d8b5e404958f45c1cdffd4e7aa9d9ed91e3a21fb50aaf50
10. 0x569a5ef70a72a62cf349922f1d2ab62b6c4c07e9a4e50914074e9e12e0603402
11. 0x79f32fe170b18b7905e03cd8a56dff870af479aedaa23b3d71551c62cbacdbbf
12. 0x104b0fd7f9e0a9cd51db3ad451e9a16d136da470f6efdf3cf1ad75354f332bc0
13. 0x959c0d70f3f85beefd7b1347751e6e712eeaefce78a57d80eda6882038b85a52
14. 0x4f21464039902a4044b17c93873adb5a93eecc8e977b4e039acb8cd5f4210b4b
15. 0x5b456020389d8e0ef67f16a492c600b5b88189e59398bba308734db7e873e7e4
16. 0x37d31d28d0bd3743650d57e9fbf999efa4592cac831267f83aa125335b35a16b
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af