Evidence row 2633551

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.facts402.com/weather"
    ]
  ],
  "name": "Weather Forecast",
  "owner_address": "0x5498b0aa90cd56f8962cbd136df3d3769c85f149",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149",
        "scheme": "exact"
      }
    ],
    "description": "Use when an agent needs a weather forecast for a latitude/longitude: current conditions plus up to 7 local-day summaries (min/max temperature, precipitation, max wind, weather symbol) in the local time zone. Data from MET Norway (CC BY 4.0). $0.01 USDC on Base; charged only on 2xx, never for invalid input.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "days": 2,
              "lat": 42.6977,
              "lon": 23.3219
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "daily": [
                {
                  "data_points": 22,
                  "date": "2026-10-30",
                  "partial_day": true,
                  "precipitation_mm": 1.8,
                  "sampling": "hourly",
                  "symbol_midday": "lightrain",
                  "temperature_max_c": 12.2,
                  "temperature_min_c": 8.4,
                  "wind_speed_max_ms": 2.6
                },
                {
                  "data_points": 24,
                  "date": "2026-10-31",
                  "partial_day": false,
                  "precipitation_mm": 2.9,
                  "sampling": "hourly",
                  "symbol_midday": "cloudy",
                  "temperature_max_c": 11.9,
                  "temperature_min_c": 7.5,
                  "wind_speed_max_ms": 3.2
                }
              ],
              "disclaimer": "Forecast data from MET Norway (Norwegian Meteorological Institute) Locationforecast 2.0, licensed CC BY 4.0; daily values are aggregated by this service from MET's hourly/6-hourly series in the location's local time zone (a multi-hour period counts towards the day it starts). Forecasts are model output and can be wrong; not for safety-critical use. MET gives hourly steps for about 2.5 days, then 6-hourly steps, so later days' min/max come from fewer samples ('sampling'); 'partial_day' marks days the series only partly covers (e.g. the rest of today).",
              "forecast_updated_at": "2026-10-29T23:18:12Z",
              "lat": 42.6977,
              "lon": 23.3219,
              "now": {
                "air_pressure_at_sea_level": 1022.2,
                "air_temperature": 9.2,
                "cloud_area_fraction": 100,
                "precipitation_next_period_mm": 0,
                "relative_humidity": 91.3,
                "symbol": "cloudy",
                "time": "2026-10-30T00:00:00Z",
                "wind_from_direction": 269.9,
                "wind_speed": 2.4
              },
              "source": "MET Norway Locationforecast 2.0 (CC BY 4.0)",
              "timezone": "Europe/Sofia",
              "units": {
                "air_pressure_at_sea_level": "hPa",
                "air_temperature": "celsius",
                "cloud_area_fraction": "%",
                "precipitation_amount": "mm",
                "relative_humidity": "%",
                "wind_from_direction": "degrees",
                "wind_speed": "m/s"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "days": {
                      "default": 3,
                      "description": "Number of local calendar days to summarise (1-7)",
                      "maximum": 7,
                      "minimum": 1,
                      "title": "Days",
                      "type": "integer"
                    },
                    "lat": {
                      "description": "Latitude in decimal degrees (WGS84)",
                      "maximum": 90,
                      "minimum": -90,
                      "title": "Lat",
                      "type": "number"
                    },
                    "lon": {
                      "description": "Longitude in decimal degrees (WGS84)",
                      "maximum": 180,
                      "minimum": -180,
                      "title": "Lon",
                      "type": "number"
                    }
                  },
                  "required": [
                    "lat",
                    "lon"
                  ],
                  "title": "WeatherRequest",
                  "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/v1793658650/bazaar-icons/b19652566eac22f6.png",
    "lastUpdated": "2026-11-02T22:31:04.888Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T22:31:04.665Z"
    },
    "resource": "https://api.facts402.com/weather",
    "serviceName": "Weather Forecast",
    "tags": [
      "weather forecast",
      "current weather",
      "7 day forecast",
      "travel weather",
      "met norway"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use when an agent needs a weather forecast for a latitude/longitude: current conditions plus up to 7 local-day summaries (min/max temperature, precipitation, max wind, weather symbol) in the local time zone. Data from MET Norway (CC BY 4.0). $0.01 USDC on Base; charged only on 2xx, never for invalid input."
}

What the leaf hashes

{"body":"a43c60fa44e3bea8d7774af9cd66e3a514d64240eb0de320940b0c0080daf0c8","id":2633551,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793734405476918,"prev":1261871,"subject":"x402_bazaar:https://api.facts402.com/weather","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x0df6d66352ca778d6fe5e0bdfa7505ab1a9a78ad83a1ae767b8925f10a2f98df
2. 0x3be47ef95117f535de38f1c6444d99e2d049086635aa73393176216267a9eeb3
3. 0xc5d2f523fee5b6cc704b98131dce6f3d9f477636ecc9c6eea48062f1dabf2d0a
4. 0xa02c3f0f9e43b042f9247c59fffb8686e309c72ae2cab17a30d344abebd29b39
5. 0x152603933e8396f417750c2f55537956916b04eee5454e9ad157d4da877cb486
6. 0xacda86f6366b4112daaa96bb35c1edbe95f1eaf3079943dc114e657cf460533e
7. 0x5f130a174f520824933efe1c323248a13090f3af3f69762cf09ff4c58e19e97e
8. 0x871e7b73e613e87d68c1d863cec03eb232c252be2faccc1afe9ebb096ee09450
9. 0x49b2c85757bba9e8712cabb0fd947f622b731ae4a51f78c953588d74985c66c9
10. 0xf0193d168b4a152534cc0dc5d0508b621e06b9f3eed11d5edf1492a8e1024487
11. 0x205ea6ae33c11fb33dd6d7157ddbcde3d54ec17db6449ddaa15f078173c7a428
12. 0xa2b0f26f4e84db03ad032393b2a3695ea5f33353da8a24629497d53b9a55a657
13. 0x593c60077eaf63cd302a3d033a280b28ac4c98d73bae86915b770c7e408ad8db
14. 0xa495b842d8f7d8efe4285381f8b862b8ab4fec0bfe90ede1e0c66f9fad72c871
15. 0xb4a5f7c31f5cf0c432e074558e814e1cf79fb110d635b7af2aa4b424de125934
16. 0x06da6e1933d86a9ec29befc4660e18827c5663bfa2083536fe460228c0434945
17. 0xa82fcd0af08a38380e777cb578b71498d941c589c6401f31d445e1685adcc978
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7