Evidence row 1038960

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": "2026-10-29T00:21:52.835Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-29T00:21:52.666Z"
    },
    "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":"1638f833fca0047b21339c3285264a97586816d80628bd17a7e0f7f9625f3356","id":1038960,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298277144879,"prev":527268,"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 2026-10-29 (242798 rows).

1. 0x4535408d4fed423193bc171c58215405dc91d011395216f516a92da2aa0b6b12
2. 0xf46e16228a26160e42e22fb0d776e9b79aefc01918136adb0becc04457eec68a
3. 0x0036a3ed5db5e7d5a8e7f4958eaf1bf3e3d862c61a16ac318e2b67c44284a755
4. 0x7762776fc3ecc0f13d64bb6e7507fa123631c720705f9954c77e483423007edc
5. 0x19ac31754953596a48fd37bd6a3efa28523a1781df2c22f2c89342626b3d17f6
6. 0x512424ed1ec26ffaeabfc19d844984ac87e61269059db0011d39b2084fc50808
7. 0xa5f4630a499679f115aa0fab56dd59693080296d7c0afba8293235e22a08cbea
8. 0xe780df86eb04f28b9e865bb1d119cfa0f3cfb526b9c55a8a8c4a8fae56a74324
9. 0x8994961a4a19c39a0d322493197aa5e27808b2021c7f0c220be05b0297454bb1
10. 0x0e2ef5ff10ac4ff0befc687317205c192fd8a2ca78c3335ef33ecf6905cdf397
11. 0xb7ebd0c250083c1147bd5bdb79af736800374dfa4a0753835f0446bb210ff718
12. 0xf2b4d8ab2e0bdab12ba5a57ab27e20b5b0e6189f2db981bbecff06ddd39d27c0
13. 0xf671ac144e55381320422b5475c2bfb30442fc6b55a1424d1c0f0576f2d27c5c
14. 0xba203712cc4170d9697121c2026471be02b4061fd0831c90d2971031c905f0c1
15. 0x0bc4adb5c11d6f42a54004eb9a86e4a9294c3fb793d78af72f971454ecfe5b44
16. 0x976395aaca1b771b7e37710dee4157412909d2398c44e306a2e1e3fe83b984fd
17. 0x91f12a2db1e2c1be07cbe4de3981a37a33051a36d3c3eee5a260804add6d1d75
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1