Evidence row 1789714

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://reference-data-api.onrender.com/v1/country"
    ]
  ],
  "name": "Reference Data API",
  "owner_address": "0x6bffcc85172372ad4e9c1ffafe97980a2c778fc7",
  "raw": {
    "accepts": [
      {
        "amount": "34500",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6BfFcc85172372aD4e9c1Ffafe97980A2C778FC7",
        "scheme": "exact"
      }
    ],
    "description": "ISO 3166 country lookup by alpha-2, alpha-3, numeric code or name (fuzzy): official name, codes, flag, official currencies (ISO 4217) and optionally all ISO 3166-2 subdivisions (states, cantons, regions).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "code": "CH"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "alpha_2": "CH",
              "alpha_3": "CHE",
              "currencies": [
                "CHF"
              ],
              "name": "Switzerland",
              "numeric": "756",
              "official_name": "Swiss Confederation",
              "subdivisions_count": 26
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "code": {
                      "description": "Alpha-2, alpha-3, numeric code or country name",
                      "type": "string"
                    },
                    "subdivisions": {
                      "description": "true to list ISO 3166-2 subdivisions",
                      "type": "string"
                    }
                  },
                  "required": [
                    "code"
                  ],
                  "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"
        }
      }
    },
    "lastUpdated": "2026-11-01T16:34:20.442Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T16:34:20.243Z"
    },
    "resource": "https://reference-data-api.onrender.com/v1/country",
    "serviceName": "Reference Data API",
    "tags": [
      "reference",
      "iso",
      "country",
      "geography",
      "data-normalization"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "ISO 3166 country lookup by alpha-2, alpha-3, numeric code or name (fuzzy): official name, codes, flag, official currencies (ISO 4217) and optionally all ISO 3166-2 subdivisions (states, cantons, regions)."
}

What the leaf hashes

{"body":"d5313a7aad89c31957d83aa0d59aa3fc128214aa99c9c70c71a6dbb421dcc929","id":1789714,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559927935941,"prev":null,"subject":"x402_bazaar:https://reference-data-api.onrender.com/v1/country","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xed93e85cfa04652cc9edee2e31a1c8ba4064534ab58994005d6c776be8188a76
2. 0x6a1ce5f339844bf0e2395a7dd1434be43fea4bfc493fd853762ca46c445b7d81
3. 0x3e33799fd7038b8caf4fb225f92ae91efa66e86df8b505406528ac28f7fa8aa9
4. 0x71aecc00e16aa07279de8f8b82837d4b177f677ce661040d4a9375a33d325e49
5. 0x91bde83d6284bcd8c7788eb97b953d31675cd9884abdb8c0f781a4cec176d8e1
6. 0x2b4a8786acd670b068146ca065b93a1e5bf566cd836551354b98fb76cbe9fa8e
7. 0x18a7c9b21060947d87a4791963e46c43dc2ac42523653f8b090890ceee273576
8. 0xb7abed5c03c70275bce77350b85fff5baed5397b76705f88db26013fd5743841
9. 0x26a803a497758c52fc97f6f33966c6ab050054f6cef9787809655fd817176b09
10. 0x9188bbafcb7970897796493dcec82f25db75ba9e773e6d3ddfa14ef989b0499b
11. 0xaf91b8dd2bb47d8538794ac3fcec81d37ac39d339bdc342a3a965242dcf62fbb
12. 0xd89fa48ca1d4954538951ca232b21fe073980b92125f2108cb7289e038ae2a25
13. 0x598a084bd520019422cd8fb5335eb9a224ef694f2125f139073e8eb90ca1503c
14. 0x80f03705ce9ab50e28456bf4bcfc03de151f183a71db3234274287a24f946a1d
15. 0x624db22ddd30d851957cc9d44cc5b314f300cfe0ff69cfbcfe0b2a2df8fdd12c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90