Evidence row 1791281

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://wetter.halowerk.com/ensemble"
    ]
  ],
  "name": "Weather Ensemble",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Single models are everywhere. This is the disagreement between them: per hour a median with a p15/p85 band, the full min/max spread, how many models still carry that hour, an agreement score, rain probability derived from pooled ensemble members rather than one deterministic run, a frost assessment, and the official DWD warnings in force for the point.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lat": 52.21,
              "lon": 7.02
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "hours": {
                      "default": 24,
                      "description": "Forecast hours, up to 168 (seven days). Short range models drop out beyond their own horizon; the per hour \"models\" count shows it.",
                      "maximum": 168,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "lat": {
                      "description": "Latitude in decimal degrees.",
                      "maximum": 90,
                      "minimum": -90,
                      "type": "number"
                    },
                    "lon": {
                      "description": "Longitude in decimal degrees.",
                      "maximum": 180,
                      "minimum": -180,
                      "type": "number"
                    },
                    "models": {
                      "default": [
                        "icon_d2",
                        "icon_eu",
                        "knmi_harmonie_arome_netherlands",
                        "dmi_seamless",
                        "meteofrance_seamless",
                        "ukmo_seamless",
                        "ecmwf_ifs025",
                        "ecmwf_aifs025_single",
                        "gfs_seamless",
                        "gem_seamless",
                        "jma_seamless",
                        "cma_grapes_global"
                      ],
                      "description": "Restrict the comparison to a subset of the twelve models. At least two, because a comparison of one model is just a forecast.",
                      "items": {
                        "enum": [
                          "icon_d2",
                          "icon_eu",
                          "knmi_harmonie_arome_netherlands",
                          "dmi_seamless",
                          "meteofrance_seamless",
                          "ukmo_seamless",
                          "ecmwf_ifs025",
                          "ecmwf_aifs025_single",
                          "gfs_seamless",
                          "gem_seamless",
                          "jma_seamless",
                          "cma_grapes_global"
                        ],
                        "type": "string"
                      },
                      "minItems": 2,
                      "type": "array"
                    },
                    "timezone": {
                      "default": "UTC",
                      "description": "IANA zone name for the returned timestamps, for example Europe/Berlin.",
                      "type": "string"
                    },
                    "variables": {
                      "default": [
                        "temperature_2m",
                        "precipitation",
                        "wind_speed_10m"
                      ],
                      "description": "Which variables to compare. wind_direction_10m is aggregated as a circular mean with a directional consensus, weather_code as a majority vote; every other variable gets median, p15, p85, min, max and spread.",
                      "items": {
                        "enum": [
                          "temperature_2m",
                          "apparent_temperature",
                          "dew_point_2m",
                          "relative_humidity_2m",
                          "precipitation",
                          "snowfall",
                          "cloud_cover",
                          "wind_speed_10m",
                          "wind_gusts_10m",
                          "surface_pressure",
                          "pressure_msl",
                          "shortwave_radiation",
                          "cape",
                          "wind_direction_10m",
                          "weather_code"
                        ],
                        "type": "string"
                      },
                      "maxItems": 8,
                      "type": "array"
                    }
                  },
                  "required": [
                    "lat",
                    "lon"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-28T20:25:04.968Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-28T20:25:22.608Z"
    },
    "resource": "https://wetter.halowerk.com/ensemble",
    "serviceName": "Weather Ensemble",
    "tags": [
      "x402",
      "halowerk",
      "weather_ensemble"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Single models are everywhere. This is the disagreement between them: per hour a median with a p15/p85 band, the full min/max spread, how many models still carry that hour, an agreement score, rain probability derived from pooled ensemble members rather than one deterministic run, a frost assessment, and the official DWD warnings in force for the point."
}

What the leaf hashes

{"body":"b7cfd44f0c24a42da9963a98993828a6690ae8b291e7623e996b356900e99cee","id":1791281,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559977748625,"prev":1038380,"subject":"x402_bazaar:https://wetter.halowerk.com/ensemble","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. 0x0dce3ffd103e3cde47e077bf6383e2550ce7d07200c613e4c9b17a9567daada5
2. 0x4bf21b37faa09ccf7771b0ac6e25ad673d0731fd638bd536dee911742e3be489
3. 0x40a9f39b5b73d21b194f508c0eaa9347bc708d2e2bd4b23580c18b7dd4af74bb
4. 0x8d2cb85b1645cdb700a4f410ea4eee13d77acb45640fbd323649ba956a11ccbe
5. 0xe680ab6cd4a6eb85ccad43a8e4bbbd6cdd28d8295c9586c89b92f7c8c46ca3c1
6. 0xf98c2ae3bb618ffb5ae0a4561b71c427498f3e9ac6ff6474cbee749e288b5b84
7. 0x7eb4f6ea327172a501e1357c4d4f1404ed16f7451eb79f1923c1426dfd169a0b
8. 0x7c3249566967bd77a7a21d77b7884158a6af57bb039ba3d89c6dd4cc5ca4da4e
9. 0x87fb70f35d57be9573c141731a56db4f79cb54bbaf4714413a8ab7e63c6f854f
10. 0x46015936c86c2900b12e44f5da08cd6b9c156d8ee1b2633f95f905c05485d8e3
11. 0xbab0e6c4bfe1cf6c5daac85b9289e666402037b6bd95740775e4396d0ba2259f
12. 0x28bc52cf58f8fc135df08117e99fb66a052c7cccd07da12775326c93ec3e4b9b
13. 0x4f8e078be8c9d72a90b9191616f58c08c3985b8bccf238ac2ab034862e22fae5
14. 0x18eb74a119177bb5bebcacf2408a5e6d3077ca72c11f6b567524be7d0ca76555
15. 0xb611d3d400373ab2497019fc1d3d5040f4f6589f8d98d8e25ccf29dd2b68ad92
16. 0x5cf5a0a57795246f996e480f05ed085c19d02f7d6e8fc3ddc392412466554f0f
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90