Evidence row 116881

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://mearef.dev/v1/:country/:series"
    ]
  ],
  "name": "Mearef - Mid-East reference data",
  "owner_address": "0x1f0409ccd20a2fb497d4decef4e17e9d0688fea6",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1F0409ccD20A2fb497d4DeCeF4E17e9d0688FeA6",
        "scheme": "exact"
      }
    ],
    "description": "United Arab Emirates: VAT standard rate, cited JSON with source URL, effective date and last_confirmed. GET /v1/ae/vat.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "country": "AE",
              "effective_from": "2018-01-01",
              "last_confirmed": "2026-10-23",
              "series": "vat",
              "source": {
                "name": "Federal Decree-Law No. (8) of 2017 on Value Added Tax, Article (3) Tax Rate — 'a standard rate o",
                "url": "https://tax.gov.ae/DataFolder/Files/Pdf/VAT-Decree-Law-No-8-of-2017.pdf"
              },
              "unit": "percent",
              "value": 5
            },
            "type": "json"
          }
        },
        "routeTemplate": "/v1/:country/:series",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "description": "Cited series value (JSON)",
              "properties": {
                "country": {
                  "type": "string"
                },
                "last_confirmed": {
                  "type": "string"
                },
                "series": {
                  "type": "string"
                },
                "source": {
                  "type": "object"
                },
                "stale": {
                  "type": "boolean"
                },
                "unit": {
                  "type": "string"
                },
                "value": {}
              },
              "type": "object"
            }
          },
          "required": [
            "input",
            "output"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792871104/bazaar-icons/9c3168a3fd552d30.png",
    "lastUpdated": "2026-10-24T20:36:39.053Z",
    "quality": {
      "l30DaysTotalCalls": 11,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-24T20:36:37.876Z"
    },
    "resource": "https://mearef.dev/v1/:country/:series",
    "serviceName": "Mearef - Mid-East reference data",
    "tags": [
      "vat",
      "united-arab-emirates",
      "reference-data",
      "tax",
      "gst"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "United Arab Emirates: VAT standard rate, cited JSON with source URL, effective date and last_confirmed. GET /v1/ae/vat."
}

What the leaf hashes

{"body":"1ac7f70225e3b5cb8e20dd4dabc93ca69a41536f204160a380c30e1062a473f8","id":116881,"kind":"listing","method":"baseline/1","observed_us":1793025610370442,"prev":null,"subject":"x402_bazaar:https://mearef.dev/v1/:country/:series","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).

1. 0x6cd462676e77973274d75d64b4f36f62fe7923f8145038ac998ccc37af050fd9
2. 0x8a7bc0b6f5c7e178d6ee7ae91caf608a27697bb9846cf2f787e0b0422b3ef559
3. 0xe44933f9fcbaf23df73abf3ab535b15c55020f3943b51348798c0a18f66095f8
4. 0xc9c652f8292d36ba37cd9f3ccbe6057242a08006c8cd54c020cabb611c43dc71
5. 0x5f7f57be31f47d14a1a739a5485249e178425df2d2389a514ce1450176a5bd78
6. 0xb5bc12f4f0fa4e2e032a07ede5fdde56cb24045a08be2b5ba03178d210bbadcf
7. 0x0139cd7608705093c2fc803d57cad3c07a075ce4ec9f0863ba1cc15cf9d3415b
8. 0xd2d3ed98518cebd52e53f506178b5281fa1b7bdec306738eac0ecdb8d1f816a8
9. 0x14a9586f7a6c1eba5dc4e3d198697ab11dcb9502547bad9045b6b8f1d0dc156e
10. 0x6d1ec73e7e908c75c9a03e6c7f6d0598ca0cfcd0c5fbb1cf6d796177fafa5410
11. 0x82b0a13483194285c0c386d5ad47eb953493b28955a9a8e58da3a2e6e220ed30
12. 0x929b3f59cbf01edbae456522161805dd51e098dc3a66d845508de46581bb953c
13. 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae