Evidence row 4198

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://weather.hugen.tokyo/weather/current"
    ],
    [
      "x402",
      "https://weather.hugen.tokyo/weather/forecast"
    ]
  ],
  "name": "weather.hugen.tokyo",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453",
      "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
    ],
    "category": "",
    "description": "",
    "domain": "weather.hugen.tokyo",
    "endpoints": [
      {
        "description": "Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one call. Global coverage updated every 15 minutes. No API keys, no geocoding setup, no rate limits. Accepts USDC payments on Base and Solana",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Tokyo",
            "group": "query",
            "name": "city",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "34",
          "l30DaysUniquePayers": "6"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://weather.hugen.tokyo/weather/current"
      },
      {
        "description": "Daily weather forecast (1-7 days) by city name — max/min temperature, precipitation amount and probability, peak wind speed per day. Automatic geocoding from city name to coordinates. Structured JSON ready for immediate use in agent workflows. No API keys, no coordinate lookups, no setup needed. Accepts USDC payments on Base and Solana",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Tokyo",
            "group": "query",
            "name": "city",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "3",
            "group": "query",
            "name": "days",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://weather.hugen.tokyo/weather/forecast"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "weather-hugen-tokyo",
    "integrationType": "",
    "isNew": false,
    "name": "weather.hugen.tokyo",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "weather.hugen.tokyo",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"f7f58e8a8aa3c7d3188e2efbfbb9f8c6b7c19bef4636f206c62ea623e2126d65","id":4198,"kind":"listing","method":"baseline/1","observed_us":1793025277453441,"prev":null,"subject":"agentic_market:weather-hugen-tokyo","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. 0xead4cb2c94374823c9d65fe7fa3954ea571a36f4d47b9d4c01849ad435c79e66
2. 0x4746b3c97faafa1cde55846ae035f8a7249364590365b2b4dcf83abe51caa6f2
3. 0x61dbbeef98c4229b938376042479a14b42dcb67fb28d47a060c4cb4717bcf3d6
4. 0x2f2a5b4518b8fe1fb34cb5bb1067c4299d5bd16e4697d3a30031fd1646314068
5. 0x7ba618f94d2886fea35555d236a5ea46bbf67a0e9d6c2aae7a236db047b9a4a1
6. 0xa06d34de84fe97b662b38b20bff8e3ce561cbd604d4cb3bccf69823aec3e63e3
7. 0x4f89dacaaddac19e843478c4b048101da3a2f817e57f498274b54b9695d18d01
8. 0x8f25b79a38f2c5ced46f7f0e14a3f7c875d271a30960a9247c89affaa96d3d7b
9. 0x040da2afce3b46dd19e10a07c8a922d307dc57a0b4fda58c06ade8e13100b0f9
10. 0xff16d371a8eaadc371c58dcf9b184d5ab1247c8848ee5dc228c393f057e7e29d
11. 0xdcbb0cc500d2b659c111afe9a926b2aafdcc6f6d034768498b0b7295973f9245
12. 0x22a204f0cf299dd3152f1542ba9998ff7665390da1ede6e58d06b8a7b2a107ee
13. 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae