Evidence row 68111

Observed 26 Oct 2026, 14:37 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://api.postcodecontext.uk/api/v1/compare
Recorded: 26 Oct 2026, 14:37 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 41a5de71e592fac5c2d8077f080bd496054ff060b2e78f664044e3e21302b70f
Leaf: 0xdcf0ef141942ea4045f2440e2dd1f7d5bc4c01876decdbd9496a8fd6d6836c08

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.postcodecontext.uk/api/v1/compare"
    ]
  ],
  "name": "Postcode Context UK",
  "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": "POST /api/v1/compare — Multi-Postcode Comparative Demographic Synthesis (2 to 5 postcodes side-by-side comparative analysis and affluence ranking)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "postcodes": [
                "SW1A 1AA",
                "BB7 3BB"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "comparison_synthesis": {
                "ai_comparison_summary": "SW1A 1AA commands higher property prices per sqm and high affluence (94 vs 64), while BB7 3BB (Dunsop Bridge, centre of Great Britain) offers lower entry costs and lowest crime (Decile 10).",
                "best_value_per_sqm": "BB7 3BB",
                "fastest_broadband": "BB7 3BB",
                "most_affluent": "SW1A 1AA",
                "safest_crime_decile": "BB7 3BB"
              },
              "postcodes": []
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v1/compare",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "postcodes": {
                      "default": [
                        "SW1A 1AA",
                        "BB7 3BB"
                      ],
                      "description": "Array of 2 to 5 UK postcodes to compare side-by-side",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 5,
                      "minItems": 2,
                      "type": "array"
                    }
                  },
                  "required": [
                    "postcodes"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "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": "2026-10-25T12:17:24.141Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-25T12:17:23.813Z"
    },
    "resource": "https://api.postcodecontext.uk/api/v1/compare",
    "serviceName": "Postcode Context UK",
    "tags": [
      "uk-postcode",
      "demographics",
      "property",
      "census",
      "geospatial"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "POST /api/v1/compare — Multi-Postcode Comparative Demographic Synthesis (2 to 5 postcodes side-by-side comparative analysis and affluence ranking)"
}

What the leaf hashes

{"body":"41a5de71e592fac5c2d8077f080bd496054ff060b2e78f664044e3e21302b70f","id":68111,"kind":"listing","method":"baseline/1","observed_us":1793025466196594,"prev":null,"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 2026-10-26 (296695 rows).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON