Evidence row 1038850

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://freetier-agent-api.pages.dev/api/apis/search"
    ]
  ],
  "name": "Agent Extraction API",
  "owner_address": "0x165eb3dc3e98403ecb1141e90400f5e71806554b",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x165Eb3dC3E98403ecB1141e90400F5e71806554B",
        "scheme": "exact"
      }
    ],
    "description": "Search 2,230 link-checked public & free-tier APIs (59 categories). Filters: q, category, auth=none, alive=yes, https=yes, kind, limit<=50.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "alive": "yes",
              "auth": "none",
              "limit": "10",
              "q": "weather"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 19,
              "results": [
                {
                  "alive": "yes",
                  "auth": "None",
                  "category": "Environment",
                  "checked_at": "2026-10-17T19:51Z",
                  "cors": "Yes",
                  "description": "Free weather API for non-commercial use",
                  "free_tier_details": "",
                  "http_status": 200,
                  "https": "Yes",
                  "kind": "public_api",
                  "name": "Open-Meteo",
                  "url": "https://open-meteo.com/"
                },
                {
                  "alive": "yes",
                  "auth": "None",
                  "category": "Open Data",
                  "checked_at": "2026-10-17T19:51Z",
                  "cors": "No",
                  "description": "Live public-safety incidents: crime, fire, disaster, weather and news from 650+ official feeds",
                  "free_tier_details": "",
                  "http_status": 200,
                  "https": "Yes",
                  "kind": "public_api",
                  "name": "CityAlert",
                  "url": "https://cityalert.live/developers"
                }
              ],
              "returned": 10,
              "source": "FreeTier Kits Verified API Directory (CC BY 4.0; public-apis MIT)",
              "sources": [
                {
                  "license": "MIT",
                  "name": "public-apis/public-apis",
                  "url": "https://github.com/public-apis/public-apis"
                },
                {
                  "license": "CC BY 4.0",
                  "name": "FreeTier Kits link check 2026-10-17 + provider pricing pages",
                  "url": "https://freetier-agent-api.pages.dev"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "alive": {
                      "enum": [
                        "yes",
                        "no"
                      ],
                      "type": "string"
                    },
                    "auth": {
                      "description": "'none' = no API key",
                      "type": "string"
                    },
                    "category": {
                      "type": "string"
                    },
                    "https": {
                      "enum": [
                        "yes"
                      ],
                      "type": "string"
                    },
                    "kind": {
                      "enum": [
                        "public_api",
                        "dev_free_tier",
                        "ai_api_free_tier"
                      ],
                      "type": "string"
                    },
                    "limit": {
                      "description": "1-50, default 10",
                      "type": "string"
                    },
                    "q": {
                      "description": "free-text search in name/description/category",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "count": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "results": {
                      "items": {
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "type": "array"
                    },
                    "returned": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "sources": {
                      "items": {
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "type": "array"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793252197/bazaar-icons/19906174df41ffa4.png",
    "lastUpdated": "2026-10-29T07:52:35.779Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-29T07:52:35.651Z"
    },
    "resource": "https://freetier-agent-api.pages.dev/api/apis/search",
    "serviceName": "Agent Extraction API",
    "tags": [
      "directory",
      "public-apis",
      "free-tier"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search 2,230 link-checked public & free-tier APIs (59 categories). Filters: q, category, auth=none, alive=yes, https=yes, kind, limit<=50."
}

What the leaf hashes

{"body":"bb3d3566b8201198c00bd60d6942eb499e044a3741aa097ec45d951863663022","id":1038850,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298276298027,"prev":null,"subject":"x402_bazaar:https://freetier-agent-api.pages.dev/api/apis/search","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. 0x9aba241fc2d6a6119b0437c719a6d8faf7e0e8aa5402f0561b52f4685c8911bc
2. 0x2a8b22170b3dcc700159e3107dbc30ea626a4cfb41e664931f1e112b05c5e204
3. 0x97d977fdb8ff773b4855786674df611f54472edb52988ee93be6e2ed992f91ff
4. 0x19a9f4306380859912c6781c4bdb115f20a4319985348eed57d709f62e04e859
5. 0x821a0c1ffd8f1a006da7a0999d9742e89a8aa9609e41369fa99da9a0cc8d1aa3
6. 0xb3cd73f91d67e236170dee72b67b1332b21964e9183705b9aecb7e43ecae58c0
7. 0xf76c28843ed3703397cca0187ef42a9695f9fa2a0967fc94d019f66be6033157
8. 0x6cb61f1af2006e62aad1f990f1c6cea0a90c9469818f744013b00ea97b50aa70
9. 0x762f49c0953e859dd5d3585f12150b68eaf99e75c2b7372a3c2416624238c2d5
10. 0x6cc405e3202a22c278ca2cb8490840e5b088c5d7259216003a22d685036774a3
11. 0x6c9ad0220b899d893de94c9bea234c09e1be62d2c06c1c4315bfb6d1ead800bc
12. 0xed8517f31ec0876e21a7e8fe53647529931dc6d3a5973bab25eadd47041a81d1
13. 0xe4afc6a5a9cd7a2bdc01f56793e0f8960d1cce7e17e93d6537f6043b1647f074
14. 0x2b11062f499f97c836e687fbba91202ea7ff254c8f8928d683df655cd117d9ec
15. 0x09d5ec1c01b0f087fe9f6cc95432188552da9adc88004aed57401ea49f2b56d4
16. 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1