Evidence row 2200637

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.postcodecontext.uk/api/v1/batch"
    ]
  ],
  "name": "Postcode Context",
  "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": "GET /api/v1/batch?postcodes=... - Bulk Postcode Enrichment (comma-separated query string)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "postcodes": "SW1A 1AA,BB7 3BB,EH1 1YZ"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "cohort_summary": {
                "total_matched": 3,
                "total_requested": 3
              },
              "results": [
                {
                  "location": {
                    "local_authority": "City of Westminster",
                    "postcode": "SW1A 1AA"
                  },
                  "summary_for_ai": {
                    "affluence_tier": "Ultra-Prime"
                  }
                }
              ]
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v1/batch",
        "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,EH1 1YZ",
                      "description": "Comma-separated list of 1 to 50 postcodes to enrich (e.g. SW1A 1AA,BB7 3BB,EH1 1YZ)",
                      "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": "2026-11-02T10:53:02.964Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T10:53:02.857Z"
    },
    "resource": "https://api.postcodecontext.uk/api/v1/batch",
    "serviceName": "Postcode Context",
    "tags": [
      "postcode",
      "demographics",
      "property",
      "census",
      "geospatial"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "GET /api/v1/batch?postcodes=... - Bulk Postcode Enrichment (comma-separated query string)"
}

What the leaf hashes

{"body":"c1ff8f75010e3fda76ba7d60b781a31d4ce0747efbe4dd187fefa62fd47447cf","id":2200637,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646797850970,"prev":1038959,"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 2026-11-02 (444186 rows).

1. 0x1190f117d2c6e69fdbdf2d9ebb67483556793f2a99e754e9a870eb6f6743a7f7
2. 0x40acff3561d821ad7508cfea62a51d4c918e5ddc6a57d55948b157dd33baf680
3. 0x57d614e3290132b19a3447a529f4f31031bc5306b4603405371b8a03418c7a3d
4. 0x18fd951e1cd8f4ee53c58410eb38c8cc3e78ec50816904636df56dfffac29589
5. 0x635dd1057fce9cdf46ffee7141ea818d11ec55dc483964a5bfb89df3de7a13b7
6. 0x921987cff34cc1c8f20fb9680d4fbd5037b9ac4683fb97981bd04b9fd794daf5
7. 0x2b8bfab97674c300bf250901ef7dcfd1be619e08936bcec82667dfa7ee773733
8. 0x9549b143661b31854a2cb4b5813e254bf2bce5572d16c791f5fa17a65425f1c1
9. 0xd42eb34fcef6e99578c42e45868a02de6da414f8d1cfd6b4a18547b8aa9a8dee
10. 0x4744c6e8ed8183ac51bd40be5034d796ab981451f5e9ba2ea021ca4ecbeff770
11. 0x53b5f0d40dcc042ae769956bb3fff7a7107519fd683ca90be375133b4b8417f3
12. 0x715a24b0f5dcc05977b0c3347c56e4c0b94bbc2f7d199d9d81cb44c4cf0d9324
13. 0x51686476d83f4be87192f4eeb7ac78473591bfaf5a92a1822648fcb019a95a83
14. 0x9914dfe331775bd1714304f757d2b6b43ba45167245d645ce50f54a3d8617c4d
15. 0xd82979c12a2aae44121bb6058b3364b3a3cbc9be411e35ab0208df5ed56f65d4
16. 0x7cb861d18f06406535ade133f716d897f27d257cf0121f99d94c78c713c4b54d
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af