Evidence row 527266

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.postcodecontext.uk/api/v1/outcode/:outcode"
    ]
  ],
  "name": "Postcode Context UK",
  "owner_address": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
        "scheme": "exact"
      }
    ],
    "description": "GET /api/v1/outcode/:outcode - Outward Postal District Summary (district-wide median prices, transaction volume, and dominant affluence tiers)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "outcode": "BB7"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "average_affluence_score_100": 64,
              "district_avg_price_per_sqm_gbp": 5514,
              "district_context_briefing": "BB7 covers Clitheroe, Dunsop Bridge (official geographic centre of Great Britain), and the Forest of Bowland, featuring rural and suburban family housing with high living standards.",
              "district_median_house_price_gbp": 358398,
              "dominant_affluence_tier": "Mid-Market",
              "imd_overall_decile_range": {
                "max": 9,
                "median": 6,
                "min": 3
              },
              "outcode": "BB7",
              "top_personas": [
                "Established Mixed-Generation Suburban Residents",
                "Rural Working Families"
              ],
              "total_postcodes": 1420
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v1/outcode/:outcode",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "properties": {
                    "outcode": {
                      "default": "BB7",
                      "description": "UK outward postal district code (e.g. BB7, SW1A, M1)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "outcode"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "pathParams"
              ],
              "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": "2026-10-27T09:22:48.788Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T09:22:48.683Z"
    },
    "resource": "https://api.postcodecontext.uk/api/v1/outcode/:outcode",
    "serviceName": "Postcode Context UK",
    "tags": [
      "uk-postcode",
      "demographics",
      "property",
      "census",
      "geospatial"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "GET /api/v1/outcode/:outcode - Outward Postal District Summary (district-wide median prices, transaction volume, and dominant affluence tiers)"
}

What the leaf hashes

{"body":"a733dc3c8ddaa67b1a8ff635a444a13d5aa8e1132c062213a3c625766ccaf0e2","id":527266,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124796434310,"prev":452341,"subject":"x402_bazaar:https://api.postcodecontext.uk/api/v1/outcode/:outcode","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x523c9d6c54884cc5974d07c1b72dbb939a2e74cfebbbf32e2bd4e688157e22e9
2. 0xb3ee7896d4e611723c4e3fde1d1479bba7f113af0e88a481ab4d4557b023cf9d
3. 0x3b8be30e9cf9cc18c0a30ba7228f6fc7d569b58be6d6576d99d27bdbe21a0b0c
4. 0xa3fd35afb9884a3f462271dff7304fbc98c5d38c3409ce60937359f243be493d
5. 0xce421bb1cc4b707dec47041b74efc6d59d528b8fb2f921ee9f4abada5b80500c
6. 0x4eabf186cc8481c1e09aa3bbd71dc1b61e3c5233b3304dd27166b7245f16730c
7. 0x5239475557eeb5fc0c080f5f9faabb7c8b03a3833694602d7d70976922a3f2cd
8. 0x58b554a6186495e8d89f60690e5b013e560992678f2194ad6c9aac64952f377b
9. 0x8fdb72335d8ef9279206adae771a7e8cb41432a7759105a4f20f95b11c401445
10. 0x7f018207d8c211de62b870bc7ddd6b26decba4cf045ae91375ec8d5f1e7e080e
11. 0xf08d73dbf9855d720c0a2a3ccd264381a0c543dccc463bf9362cb3ec368ba1ac
12. 0xd57b5a86cf210d9ed4e220de5668cf59c88f82934bf7c8ef9e6b3e894577973c
13. 0x996f3d89f9508378f3c194c9828b500725dd599c52fd040349190982338d96f2
14. 0x9ea0c6a53f80a30b6f13671109f98a000cf98e581875129f4be4b57131d06364
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4