Evidence row 1039864

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-factory.com/v1/alerts/severe"
    ]
  ],
  "name": "x402-factory",
  "owner_address": "0xcc42ed39a06b6cf3f484307ef76b88bf56fb305f",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xCc42Ed39a06b6cF3f484307eF76B88Bf56Fb305f",
        "scheme": "exact"
      }
    ],
    "description": "Active NWS alerts for a point or state, plus model-forward hazard risk — Official National Weather Service active alerts (public domain, attributed) for a lat/lon or two-letter state, combined with our model's forward 48h hazard probabilities (extreme heat, heavy rain, damaging wind). Pass lat+lon or state.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "lat": 33.4484,
              "lon": -112.074
            },
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "active": [
                  {
                    "event": "Flash Flood Warning",
                    "expires": "2026-07-18T16:02:00-07:00",
                    "headline": "Flash Flood Warning issued July 18 at 3:52PM MST until July 18 at 4:00PM MST by NWS Tucson AZ",
                    "onset": "2026-07-18T15:52:00-07:00",
                    "severity": "Severe",
                    "source": "NWS"
                  },
                  {
                    "event": "Flash Flood Warning",
                    "expires": "2026-07-18T17:15:00-07:00",
                    "headline": "Flash Flood Warning issued July 18 at 3:46PM MST until July 18 at 5:15PM MST by NWS Flagstaff AZ",
                    "onset": "2026-07-18T15:46:00-07:00",
                    "severity": "Severe",
                    "source": "NWS"
                  }
                ],
                "model_risk": [
                  {
                    "hazard": "extreme_heat",
                    "probability": 0.138,
                    "window_end": "2026-07-20T12:00:00.000Z",
                    "window_start": "2026-07-18T12:00:00.000Z"
                  },
                  {
                    "hazard": "heavy_rain",
                    "probability": 0.677,
                    "window_end": "2026-07-20T12:00:00.000Z",
                    "window_start": "2026-07-18T12:00:00.000Z"
                  }
                ]
              },
              "meta": {
                "data_mode": "live",
                "docs": "https://x402-factory.com/docs/weather.alerts-severe",
                "endpoint": "/v1/alerts/severe",
                "freshness": "realtime",
                "generated_at": "2026-10-05T10:15:58.016Z",
                "request_id": "req_00000000",
                "sources": [
                  "NWS",
                  "stub-model"
                ],
                "version": "1.0.0"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "hazard": {
                      "description": "Filter alerts and model risk to one hazard class",
                      "enum": [
                        "hurricane",
                        "tornado",
                        "heat",
                        "flood",
                        "winter",
                        "fire-weather"
                      ],
                      "type": "string"
                    },
                    "lat": {
                      "maximum": 90,
                      "minimum": -90,
                      "type": "number"
                    },
                    "lon": {
                      "maximum": 180,
                      "minimum": -180,
                      "type": "number"
                    },
                    "state": {
                      "maxLength": 2,
                      "minLength": 2,
                      "pattern": "^[A-Za-z]{2}$",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "data": {
                      "additionalProperties": false,
                      "properties": {
                        "active": {
                          "items": {
                            "additionalProperties": false,
                            "properties": {
                              "event": {
                                "type": "string"
                              },
                              "expires": {
                                "type": "string"
                              },
                              "headline": {
                                "type": "string"
                              },
                              "onset": {
                                "type": "string"
                              },
                              "severity": {
                                "type": "string"
                              },
                              "source": {
                                "const": "NWS",
                                "type": "string"
                              }
                            },
                            "required": [
                              "event",
                              "severity",
                              "headline",
                              "onset",
                              "expires",
                              "source"
                            ],
                            "type": "object"
                          },
                          "type": "array"
                        },
                        "model_risk": {
                          "items": {
                            "additionalProperties": false,
                            "properties": {
                              "hazard": {
                                "type": "string"
                              },
                              "probability": {
                                "maximum": 1,
                                "minimum": 0,
                                "type": "number"
                              },
                              "window_end": {
                                "type": "string"
                              },
                              "window_start": {
                                "type": "string"
                              }
                            },
                            "required": [
                              "hazard",
                              "window_start",
                              "window_end",
                              "probability"
                            ],
                            "type": "object"
                          },
                          "type": "array"
                        }
                      },
                      "required": [
                        "active",
                        "model_risk"
                      ],
                      "type": "object"
                    },
                    "meta": {
                      "type": "object"
                    }
                  },
                  "required": [
                    "data",
                    "meta"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:15:03.516Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-08T06:15:03.375Z"
    },
    "resource": "https://x402-factory.com/v1/alerts/severe",
    "serviceName": "x402-factory",
    "tags": [
      "weather",
      "alerts",
      "nws",
      "severe"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Active NWS alerts for a point or state, plus model-forward hazard risk — Official National Weather Service active alerts (public domain, attributed) for a lat/lon or two-letter state, combined with our model's forward 48h hazard probabilities (extreme heat, heavy rain, damaging wind). Pass lat+lon or state."
}

What the leaf hashes

{"body":"3bb33473d962b4c35c03aab6a489f54a1b374007b75b12d9db514ebda91ee5fd","id":1039864,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298472864116,"prev":125086,"subject":"x402_bazaar:https://x402-factory.com/v1/alerts/severe","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0xb864d35f82b55098424c3d89e54c418c502999555667425019be7a2be906679f
2. 0x470008d76c751e3d8cf8f2d63f12ca3d170466358a45b781db6fb6053af0a334
3. 0x19a5bbdcfde65e7775b77f9bc55ae5131c518684df1bee7dd63a24f4c066cc23
4. 0xa967e58ce872e5c03702724f23e7ceeea31a85a7a377648f85aeddc1fbfc9be6
5. 0x5c3b1aacd2df3e10bde3341bd68d92dc767d945540038a8ff9ff4107bc0ebcb3
6. 0xcd787dc02dc9470ad75f86d75fffe52b68f1d0b9afe9f1129e44a930b53b34ce
7. 0x60ee307c32ab574e6f6f3635c7a5d47dd5f71e7490ba5af405d8b8974dd29a01
8. 0xf20ea646152f0341e4e2bf830f83fe8adb4fcc6017346b140352e2a0ce0004e0
9. 0xd0fe3fbca9882f80d9259f4de33bd60a3ec59c3595dffc9d7ee506259c2dcafc
10. 0x7e424c0b95e18cb006aca76f4b74969e45becb83496b09ffd43e9599d772ce18
11. 0xd07445039c74815ee07d32b45bb4e3a08c22288e5d95f9e85ae71c83f34cb199
12. 0xbf1c3062706e2770f96c324c7e622538f707fe1e69cbe00ed58ff00170fa818f
13. 0x43b137280a2d52b448f2b8cd8b398476e85b20c963b64b48ff126cff6ec4a020
14. 0x25bdeb6e977b537e5ffb55862bdb08b7a547e08d655551b6a97e31264fefa58a
15. 0xaa1d19094c2ce6d011a3c40533fa7efee207719d6c482ffc47018b28e5518acc
16. 0xef5d5572aac8f06b61579b7167b369fcb479d9027d4037dc9cacff9e3a26ffd2
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1