Evidence row 19394

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.fastaf.co/x402/v1/x"
    ]
  ],
  "name": "FastAF",
  "owner_address": "0x05b75e13f071a09a26b50a18ce5bd02a0755d76f",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x05B75e13f071A09A26B50a18Ce5BD02a0755d76F",
        "scheme": "exact"
      }
    ],
    "description": "X (Twitter) public profile API for AI agents: look up a username for audience research and profile enrichment. Returns JSON with name, handle, biography, follower, following and post counts when available; public profile data, not tweet search. Provided by FastAF X Public Profiles. Price: $0.005000 USDC per successful call.",
    "extensions": {
      "bazaar": {
        "info": {
          "docsUrl": "https://fastaf.co/apis/x-scraper-api/",
          "homepage": "https://fastaf.co",
          "input": {
            "method": "GET",
            "queryParams": {
              "profileId": "nasa"
            },
            "type": "http"
          },
          "openApiUrl": "https://api.fastaf.co/openapi.json",
          "output": {
            "example": {
              "description": "Exploring space and sharing discoveries about our universe.",
              "followers_count": 85000000,
              "following_count": 170,
              "handle": "NASA",
              "name": "NASA",
              "statuses_count": 75000
            },
            "type": "json"
          },
          "website": "https://fastaf.co"
        },
        "metadata": {
          "provider": {
            "description": "FastAF: Web data for AI agents, pay per call in USDC via x402, no account: Google search, Maps, News, Shopping, Scholar, Jobs, AI Mode, Amazon, eBay, Walmart, Zillow, YouTube transcripts, public LinkedIn/X profiles, scraping and screenshots.",
            "docsUrl": "https://fastaf.co/apis/x-scraper-api/",
            "homepage": "https://fastaf.co",
            "name": "FastAF",
            "openApiUrl": "https://api.fastaf.co/openapi.json",
            "website": "https://fastaf.co"
          }
        },
        "routeTemplate": "/x402/v1/x",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "description": "X (Twitter) public profile API for AI agents: look up a username for audience research and profile enrichment. Returns JSON with name, handle, biography, follower, following and post counts when available; public profile data, not tweet search.",
          "properties": {
            "docsUrl": {
              "format": "uri",
              "type": "string"
            },
            "homepage": {
              "format": "uri",
              "type": "string"
            },
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "description": "Public X (Twitter) profile lookup by profileId, without an @ prefix.",
                  "examples": [
                    {
                      "profileId": "nasa"
                    }
                  ],
                  "properties": {
                    "profileId": {
                      "description": "Required public X/Twitter username, e.g. nasa, without @ or a profile URL. No default; retrieves profile data, not an arbitrary post. No option surcharge; 5 credits per successful request.",
                      "examples": [
                        "nasa"
                      ],
                      "maxLength": 8192,
                      "type": "string"
                    }
                  },
                  "required": [
                    "profileId"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "openApiUrl": {
              "format": "uri",
              "type": "string"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": true,
                  "description": "Public X profile JSON with name, handle, description, followers_count, following_count and statuses_count when available.",
                  "properties": {
                    "description": {
                      "type": "string"
                    },
                    "followers_count": {
                      "type": "number"
                    },
                    "following_count": {
                      "type": "number"
                    },
                    "handle": {
                      "type": "string"
                    },
                    "name": {
                      "type": "string"
                    },
                    "statuses_count": {
                      "type": "number"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            },
            "website": {
              "format": "uri",
              "type": "string"
            }
          },
          "required": [
            "input"
          ],
          "title": "FastAF X Public Profiles",
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T01:34:44.28Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T01:34:43.673Z"
    },
    "resource": "https://api.fastaf.co/x402/v1/x",
    "serviceName": "FastAF",
    "tags": [
      "data",
      "scraping",
      "web-data",
      "api",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "X (Twitter) public profile API for AI agents: look up a username for audience research and profile enrichment. Returns JSON with name, handle, biography, follower, following and post counts when available; public profile data, not tweet search. Provided by FastAF X Public Profiles. Price: $0.005000 USDC per successful call."
}

What the leaf hashes

{"body":"59af4a449cbe1fdcd1bd84c0fdf5ffa362ace31feba6de3116accb4b621ba085","id":19394,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025331643688,"prev":null,"subject":"x402_bazaar:https://api.fastaf.co/x402/v1/x","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. 0x65f58bdebf812e6d0f974cbed8cfc5e65a5f4f98966a1afae5aa024918644998
2. 0x1b65b66e12e359c935d12735c52090ef103d02081a6f8da4ec394da06f51defb
3. 0xc1661094a48592f36e175f3561bbefdeeeee37bf290f787648eacbb2172ecd5e
4. 0x7ecec2ab230e811a26fc2eed40e4821e8be900240ebf9bcb89ac81e6aab14c55
5. 0x71fd46e7e8f98b56d41d23fe01011afb34d952719a495df5a5d1fd257c5e56a3
6. 0x7f88e24f73cd911a4e72d8e27a20d9f93decc95eb473a6eeb0e6ddef0cf0f251
7. 0xc704865cb79de80e4424a2b9d8c5d438c91f6d7ead22fb02800ef3e24e430885
8. 0x2499ac2b39770c54524b546802aa1f271f1c2c3e00f6ad639ed024d14fa74a1a
9. 0xaefd42c44fc9de8b508dbc7ce1a1219a2819ec0fb2f590559df61ac4681d5d28
10. 0x17b7b18fdb5634f7375f480081f04da08fa690f97e6123e0cec534ab5ca72dd5
11. 0x97befbe0402dae50d99027054f0d354513b22fda782f887ba0d9fae94219c296
12. 0x611b1c1b68d04a71934006e383071a8f3836400d60beb86d81dd038bc102029f
13. 0x13f4b94ecf613d585c952b5363dad2b247a55371eb8e358bb89dc033e83128b1
14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae