Evidence row 278136

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.agentutility.ai/keyword-suggest"
    ]
  ],
  "name": "AgentUtility.ai",
  "owner_address": "0x6c0752c09e7f6fa6526fcdf40e456a159ebb5621",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "FJqAJ4dXkFbrp3EEo8E9x98iaBGUQwaU8Srz5ePfUXLH",
        "scheme": "exact"
      }
    ],
    "description": "Keyword and autocomplete suggestions for any seed query. Aggregates Wikipedia OpenSearch and DuckDuckGo autocomplete (both public, no auth) into a de-duplicated ranked list — useful for SEO keyword research, content-gap analysis, LLM query expansion, and agent-driven research.",
    "extensions": {
      "bazaar": {
        "discoverable": true,
        "info": {
          "input": {
            "body": {
              "limit": 10,
              "query": "ethereum"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "attribution": "Sources: Wikipedia OpenSearch + DuckDuckGo Instant Answer (public APIs).",
              "count": 5,
              "per_source": {
                "duckduckgo": {
                  "count": 5
                },
                "wikipedia": {
                  "count": 5
                }
              },
              "query": "ethereum",
              "suggestions": [
                "Ethereum",
                "Ethereum classic",
                "Ethereum 2.0",
                "Ethereum price",
                "Ethereum wallet"
              ]
            },
            "type": "json"
          }
        },
        "related": [
          "/product-listing-pack",
          "/seo-snapshot",
          "/social-image-pack"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "anyOf": [
                    {
                      "required": [
                        "query"
                      ]
                    },
                    {
                      "required": [
                        "keyword"
                      ]
                    }
                  ],
                  "properties": {
                    "keyword": {
                      "description": "Alias for query.",
                      "type": "string"
                    },
                    "lang": {
                      "description": "Wikipedia language code, e.g. 'en', 'es'. Default 'en'.",
                      "type": "string"
                    },
                    "limit": {
                      "description": "1-50. Default 10.",
                      "type": "number"
                    },
                    "query": {
                      "description": "Seed query.",
                      "type": "string"
                    },
                    "source": {
                      "description": "Default 'all'.",
                      "enum": [
                        "wikipedia",
                        "duckduckgo",
                        "all"
                      ],
                      "type": "string"
                    }
                  }
                },
                "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"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "attribution": {
                      "type": "string"
                    },
                    "count": {
                      "type": "integer"
                    },
                    "per_source": {
                      "properties": {
                        "duckduckgo": {
                          "properties": {
                            "count": {
                              "type": "integer"
                            }
                          },
                          "type": "object"
                        },
                        "wikipedia": {
                          "properties": {
                            "count": {
                              "type": "integer"
                            }
                          },
                          "type": "object"
                        }
                      },
                      "type": "object"
                    },
                    "query": {
                      "type": "string"
                    },
                    "suggestions": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_awpbwsy3"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1783070352/bazaar-icons/54f004eda341546b.png",
    "lastUpdated": "2026-10-25T08:35:18.654Z",
    "quality": {
      "l30DaysTotalCalls": 12,
      "l30DaysUniquePayers": 8,
      "lastCalledAt": "2026-10-25T08:35:15.515Z"
    },
    "resource": "https://x402.agentutility.ai/keyword-suggest",
    "serviceName": "AgentUtility.ai",
    "tags": [
      "web-probe",
      "keyword",
      "suggest"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Keyword and autocomplete suggestions for any seed query. Aggregates Wikipedia OpenSearch and DuckDuckGo autocomplete (both public, no auth) into a de-duplicated ranked list — useful for SEO keyword research, content-gap analysis, LLM query expansion, and agent-driven research."
}

What the leaf hashes

{"body":"bb96dd396f6feb52adef20a40a10f5d1a773408f2d6e607b312411fdce4b2010","id":278136,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042052910736,"prev":125685,"subject":"x402_bazaar:https://x402.agentutility.ai/keyword-suggest","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. 0xb479f6e9add523556d36f747bd4da771f46fa605e31abab496d089090da57b22
2. 0xd8384a0826d1296a95cd10b40406caaff6b406c818b6e1c4b56b6f4f45a00268
3. 0xa96571efc588dbefa06a4e2a8a01997f970e4a8c0b0906e5ff42ae9b5c7c2390
4. 0x8b9262cbf1b39f7111c9253bb9108893af4fd46a4da71043b82a4bb8c81793cb
5. 0xa44fafc6253a74305e70f60b1a533f9b4af66b2c39499521ed973f39e036045e
6. 0xb4315317eb806a29e0eb12a7a036ad1cb00a68e2b6a180a6b7c92637d6696ae1
7. 0x70267783f8d820cfcd58234a025318123c7677795d6d40309bdd9ca82473ffc2
8. 0xd1f1e7cc6f4930d46e1794c819e7e4fb0d948fe77b85713ac834fd309857e9b8
9. 0x0d86ea4a4da1f9a834855a683934629d570af3b3857f8164865f1166025658aa
10. 0xf941bb922f242f0d5ded32ad8f4624a0ca45bdb31fdd68caca25d77699da15d9
11. 0x559555135675e39701c05a4d63d274b59d60cf1dc8421a68215c770867d00aff
12. 0x7a0f1751de1946feff7d8c8afc737dcc4d35f110809c15aa0fdb8363a9e31b2b
13. 0x0d86419ca1dd0b62fd8b22ea2e8c74d441312cec3116a467bea429b43e026565
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae