Evidence row 68023

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.particle.pro/v1/topics"
    ]
  ],
  "name": "Particle Pro",
  "owner_address": "0x59f3a6dcb6f482c53872dd8f8f9e1f9161a1c5f7",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x59f3a6dcb6f482c53872dd8f8f9e1f9161a1c5f7",
        "scheme": "exact"
      }
    ],
    "description": "List topics. Returns the hierarchical topic taxonomy.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "artificial intelligence"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "ancestry_path": {
                      "description": "Filter by exact ancestry path hash.",
                      "type": "string"
                    },
                    "ancestry_path_prefix": {
                      "description": "Filter by ancestry path prefix (all descendants).",
                      "type": "string"
                    },
                    "cursor": {
                      "description": "Opaque pagination cursor from previous response",
                      "type": "string"
                    },
                    "limit": {
                      "description": "Results per page",
                      "format": "int64",
                      "type": "integer"
                    },
                    "parent_id": {
                      "description": "Get children of this topic. Accepts topic ID, ancestry slug, or ancestry path hash. Omit for top-level roots.",
                      "type": "string"
                    },
                    "q": {
                      "description": "Find topics by name: exact names first, then names starting with q, then (when q has a word of 3 or more characters) names containing it, each ranked by story coverage. With parent_id or ancestry_path_prefix, searches that topic's descendants. Name search covers topics with at least 5 story clusters; browse with parent_id to reach the long tail.",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-19T13:15:28.813Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-19T13:15:28.529Z"
    },
    "resource": "https://api.particle.pro/v1/topics",
    "serviceName": "Particle Pro",
    "tags": [
      "topics",
      "podcasts",
      "media intelligence",
      "particle pro"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "List topics. Returns the hierarchical topic taxonomy."
}

What the leaf hashes

{"body":"0f4d267fd4e2542a0a74ce1a7d23a1f8719942911b020472a00fd380c74dceb4","id":68023,"kind":"listing","method":"baseline/1","observed_us":1793025466079279,"prev":null,"subject":"x402_bazaar:https://api.particle.pro/v1/topics","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. 0x7d47742f75d2add64468a1f6c7ef9dad044db94f3b8e0e0a7e20735e5c2892a5
2. 0xa178c298d86b3802376a56dcaac95f90d31aeb956ae92f4ec959933a777c171b
3. 0x1e11b6103f78c4373c396cb230ad5ea41f06db4d1fb5bc53b2c76dadd93db0d6
4. 0xc266284f932fe6f06ba65bba5a7d2ce3990e16a159eb5841803770689de5608e
5. 0x8a9f05efeb4d29ee89a68c576b15619eb35bbdb040e7e50f15a84876032958d0
6. 0xf753f61a5cf3740668d3f18f70f6dc69704684abad48e222e208b9218978fa91
7. 0x2e707608316b0d5d69d813e984b87f3340a13710d22999d5187ce561b2bb9eb3
8. 0x1cd028513eac1532ee3df02f156de4852cd6c7c32cee939b66c2faf32a7f82ae
9. 0x7cb84485c6b902c49734720bca3a33ab18427e01cb45da3f781a9f5899f3a01c
10. 0x27bb9eefd00206cde7209859f541e1ae68cb3baba4968278bfa6a4028b0fe719
11. 0x05b818019343d04f2973b36329a447f88301721891653961b94822610edda553
12. 0x779c77295186b32da6387dfb36d3a76522e7d713472a7cebed7c93529ccc4be6
13. 0x0bffb634300aa5609bddaa79e8d31d7cde36c0a5a4465472f809b9f5287e40d2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae