Evidence row 1261871

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": "Weather forecast for any latitude/longitude: current conditions plus up to 7 local-day summaries (min/max temperature, precipitation, max wind, weather symbol) in the place's own time zone. Data from MET Norway (CC BY 4.0). For travel, tourism, events and logistics agents.",
    "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"
        }
      }
    },
    "lastUpdated": "2026-10-30T10:50:26.226Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T10:50:26.037Z"
    },
    "resource": "https://api.facts402.com/weather",
    "serviceName": "Weather Forecast",
    "tags": [
      "weather",
      "forecast",
      "travel",
      "tourism",
      "geo"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Weather forecast for any latitude/longitude: current conditions plus up to 7 local-day summaries (min/max temperature, precipitation, max wind, weather symbol) in the place's own time zone. Data from MET Norway (CC BY 4.0). For travel, tourism, events and logistics agents."
}

What the leaf hashes

{"body":"7e4f0d5b9c7efb49a0b5687004dfa2bd24672e5b834f4acbd962fb94e356a730","id":1261871,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385517054511,"prev":null,"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 2026-10-30 (243099 rows).

1. 0x01776efb6f8f14ccb69e6c2aab2993292010c2e93f3a8256212dd779ba274c5d
2. 0x4afb2c796d476aa3d2b37fc5b2343ec3e1ca3da62cd2d1d4f8823c87f63be830
3. 0x6854ea6f8fa0f228663cb48c1dc73f5de0584f3fb3ddb5f410d573995abcf14b
4. 0x9f101570d69adb4b00e3b8374aadbe9e654aedd1516035533381ca65a797313b
5. 0x8066c25abcd0711c3d00f9674dd44c29b6d3cb3834b1db329fcde9d73a67161d
6. 0xf074b7d9599be19b48e543c1d9b7bf345c33eeaa495b290cc9898be4290856b7
7. 0xcbc5a6b964fbef8e533b59b8c73bda4eb33a64f84be86cef3a95928ae4b8f1c4
8. 0xd4a9b1378318cd54902ebbe1d6b54a2f1a13e7b0bfb21283a91a25baf1a9579d
9. 0xcebd5d072feb4ba6a2ae814ca8b86d0fa8c1cdada04ef078e792a2d8d4582269
10. 0xd9da8a2a49170efa1c491324b3d7026a97e7e6ca232c52281ae5cac43e438758
11. 0x256ccea52830a2f036ac76722bbd7e46abea7259dbca5fe029d16d53cfa364a9
12. 0xa1dcaffedf43b192df0f719c0ec805edaa925c119720ae9f42171aca5e2875c3
13. 0x5265c50f3937a978a97dcf6529a74471a0814f84b7759709755dc93a22996c34
14. 0xa0c9900ba7512d3a576c15bf6cc53f55a0645d9bf9b4e2e4c1760d00af98e761
15. 0x2b7a05865245feaf40ea40b73e02d86357af2dcbac9c7b992f1420f5eaa15246
16. 0xe2a9872e1b6a01c55a7a8cc5c05c61f3933255db5c26b9c79be4011d28685b52
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861