Evidence row 453254

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://vending-machine-seven.vercel.app/api/v/weather"
    ]
  ],
  "name": "vending-machine-seven.vercel.app/api/v/weather",
  "owner_address": "0xc648116b5debe4af7d78838aa468d07e0a9ab697",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xc648116b5deBE4AF7D78838AA468d07e0A9Ab697",
        "scheme": "exact"
      }
    ],
    "description": "Current temperature and wind for a city from Open-Meteo (live forecast data)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {},
            "queryParams": {
              "city": "Berlin"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "city": "Berlin",
              "current": {
                "temperature_2m": 18.2,
                "wind_speed_10m": 3.1
              },
              "ok": true,
              "service": "weather"
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v/weather",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "city": {
                      "description": "City name, default London",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "city": {
                      "type": "string"
                    },
                    "current": {
                      "type": "object"
                    },
                    "ok": {
                      "type": "boolean"
                    },
                    "service": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:15:22.367Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-26T04:32:49.235Z"
    },
    "resource": "https://vending-machine-seven.vercel.app/api/v/weather",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current temperature and wind for a city from Open-Meteo (live forecast data)"
}

What the leaf hashes

{"body":"1adbe87533250013ad16aee31bed48316e2a358704b5d2f7d293ef3e1bbd9b69","id":453254,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100612427943,"prev":67373,"subject":"x402_bazaar:https://vending-machine-seven.vercel.app/api/v/weather","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xc3df53a9c69ca7491a7c18379877fe7bc671285a05b7cee3d15df1da97ad93d1
2. 0xfa7854914c799af3602b3eacd807491eecb748fa57b500c2cd4ec3b344fdb385
3. 0x973c336633dd22ce9ce368136441d68dc24e1f9a774da995c326cdc78ffcb08f
4. 0xc000c45943e793a24c3041cdc3a5b1157376ba9c5a62ca99c5d177b37a487e40
5. 0xd303725de84087ba7702053eb759b82b5923f486d7232414cb1fd9b5b4259681
6. 0x57aebc0c89ea972cf731f81705ed41df8befc2fec210115058ceb4cf50c1ccd8
7. 0xf5489461d550b88acd8db93585b9ce13db623be5148ce0d38e1423b5937f197a
8. 0xe914ee977e79088f5240bc9939aa31422d54ac6f99d76ca691dee8c7ef0a03d9
9. 0x95710a0ffd80a8afab006f853098e71ee0fe94357d164fd5bf3c6c5f48019811
10. 0xc9e21bdb5c28057e32655df6868cdd0379fa1da84b652c863ac4825f05a56ca9
11. 0x1508fd39a92015f2675aefede1d322b337358ef9cb1fdde46c7fa9276f6b3d5f
12. 0x09c148bbe62d15164b3840b798915bcd800d49ae022a1820cd04cc89b1b4e59a
13. 0xb48b088603004f0a5232faea4acd65999cbb4832f4c15b0098e853144cb91655
14. 0x077edf0f29e2a3aa19c876439830696b88f0236fd0b2a3c43c76f38cdd29bb2b
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4