Evidence row 123578

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://url.openverbs.com/v1/query"
    ]
  ],
  "name": "Query string parse / build",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Two directions over query strings. action='parse' decodes a query string (with or without a leading '?') into an object, collapsing repeated keys into arrays. action='build' encodes a params object into a query string, expanding array values into repeated keys; set sort=true to order keys alphabetically.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "action": "parse",
              "params": {},
              "query": "example"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "action": {
                      "description": "Direction: 'parse' string→object, 'build' object→string.",
                      "enum": [
                        "parse",
                        "build"
                      ],
                      "type": "string"
                    },
                    "params": {
                      "additionalProperties": true,
                      "description": "The parameters to encode (required when action='build'). Values may be scalars or arrays.",
                      "type": "object"
                    },
                    "query": {
                      "description": "The query string to parse (required when action='parse').",
                      "maxLength": 8192,
                      "type": "string"
                    },
                    "sort": {
                      "description": "Sort keys alphabetically when building. Default false.",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "action"
                  ],
                  "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": "2026-10-08T06:12:20.578Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:12:20.324Z"
    },
    "resource": "https://url.openverbs.com/v1/query",
    "serviceName": "Query string parse / build",
    "tags": [
      "query string parser",
      "build query string",
      "parse url params",
      "encode query parameters",
      "decode query string"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Two directions over query strings. action='parse' decodes a query string (with or without a leading '?') into an object, collapsing repeated keys into arrays. action='build' encodes a params object into a query string, expanding array values into repeated keys; set sort=true to order keys alphabetically."
}

What the leaf hashes

{"body":"a6f4cd5853d09b1a45a21912be6ea63843f018b43e39a67990180a38d895a502","id":123578,"kind":"listing","method":"baseline/1","observed_us":1793025623338921,"prev":null,"subject":"x402_bazaar:https://url.openverbs.com/v1/query","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xeed665b29544439e386af7d6da4bd52ba4fec6787510a3133be06a96be8afbbf
2. 0x033791e8b798f4151d8e6b53715181d5ee4d024949165f3132dce8708681181d
3. 0x71a1e4fbe221e75aff6d6e3aaa9827da419757c53f22662513920a1071b8bff8
4. 0x3b961569cb7bc5266a02eba3ca11b9dea5e2e1f39a33cc95be0bedd04cd1cc0b
5. 0x6e870fc1f493c9a540e9a6c429a81e7fea581c4579e91c0f93087c5e38f7539c
6. 0x8adaf5dcf28e9b9f6e6b75d084cf305f724ec9dd15aa21ca1af8669e791023f7
7. 0xfbc5ed29a910dbb5564b1bab7076d11acab00d366f5b68f902fbf25193c2b669
8. 0x4da43d4433ede36f5ff03a076156bcbf26e6e1ffc565c2254c6ab955de2bf3ac
9. 0x50febeddc5b4552a313a9cd5c0a118ec1c55e21a42b2ea7c98ecf12ac8161e8e
10. 0x6a342165fe5c2fa8b0f8cd8b99ab88e01f9e0a758f16ba9193ba775d71446fbb
11. 0xd1f02e907670bf2f4c72056210a7d4ee252934850293a927f852acd3952f44a4
12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae