Evidence row 1790760

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": "API search: 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": "2026-11-01T06:53:13.664Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T06:53:13.502Z"
    },
    "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": "API search: 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":"7e8745150431dfee70dfc8b54c90e8043e7ac4f40cdea0d352b571c3b2b47d7d","id":1790760,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559937585888,"prev":1038850,"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 2026-11-01 (302406 rows).

1. 0x2452c47a205ddded5d85ad2029ad754da078ee22d27104b127daf47aea6b8aca
2. 0x29c11b28e036dcb36b9dc4b1f3e93d0f1bfef5bf174e9ac70407f4d276d0354e
3. 0x0090c562f7ae84153ea4c3e3bd3124a8ecf89e546be28f024ee148ac4533144b
4. 0xd55d6df270758de6bed335094eddc383795e46c43b6da86378027757956bf30e
5. 0x096f08884dc26870604bdd03e1d090b8381bc5bc5667d7211c56d5170eeb2c91
6. 0x6da4e607886793bf354dbd192d957a45a2a94c82fce156abbf67baa95a2939d5
7. 0xf9b59e2db53a8aeac27153fe0acf0453acac03d2584446380547f38b71a789f2
8. 0x7ea77c20f8c3db77368595c45574b2e088a2eb9d1535919bc10ff9f75e6209a3
9. 0x42c52e856e36301f0287bd44cd735bbba62d34e9743063276cea8f064e0f11a3
10. 0x40d35e15a3ab884ffb2883f91805f3830169df5ecf9d97d03b08e15dc9f5c817
11. 0x6e585a4906b3fee21f4999c1cc22655c577795a89a8ca8be8143962ece1adfc2
12. 0xdfb60f69cac19b1ac7881e138fd331a8a5a530dc13ed1095b70c261d628f44d4
13. 0x9dd502d4ff98d6d9a3253ed5276781da0bbca65c29f44992970b6dcb262524b7
14. 0x3a1fd02b7b783283e5af93120711d3c5437e55d0f3e68e16f18cfe19e54cafd1
15. 0xb9d6fdc8e6fb3f4feffa2c18849d74fc34d8708b574a778ae149241a90aaf20b
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90