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Evidence row 4153

Observed , by baseline/1.

Kind
listing
About
source_record agentic_market:visual-hugen-tokyo
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
f36b73bdd4f58b91590c1e6961a460348fe6d640100965c6364d24bae5d7e34c
Leaf
0xf3349586d13479325469f517ebe7c1bd37cb87d258e94f490387c7ac606ac272

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://visual.hugen.tokyo/visual/ocr"
    ],
    [
      "x402",
      "https://visual.hugen.tokyo/visual/parse"
    ],
    [
      "x402",
      "https://visual.hugen.tokyo/visual/pdf"
    ],
    [
      "x402",
      "https://visual.hugen.tokyo/visual/screenshot"
    ]
  ],
  "name": "visual.hugen.tokyo",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453",
      "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
    ],
    "category": "",
    "description": "",
    "domain": "visual.hugen.tokyo",
    "endpoints": [
      {
        "description": "OCR extraction from scanned PDF documents (English). Uses Tesseract to read text from image-based pages that have no embedded text layer. Returns structured text and metadata. Ideal for invoices, receipts, contracts, and legacy documents. $0.05 per extraction.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "50",
            "group": "query",
            "name": "max_pages",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/scanned-invoice.pdf",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.05",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://visual.hugen.tokyo/visual/ocr"
      },
      {
        "description": "Extract structured text, tables, and metadata from any PDF URL. Returns page-by-page text content, detected tables as JSON arrays, and document metadata (title, author, page count). No PDF library or OCR setup needed — pay per extraction. AI agent API for document intelligence and data extraction",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "50",
            "group": "query",
            "name": "max_pages",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/report.pdf",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [],
        "url": "https://visual.hugen.tokyo/visual/parse"
      },
      {
        "description": "Render any URL into a clean A4 PDF with print-quality graphics. Auto-removes ads, cookie banners, and overlays. Returns base64-encoded PDF with metadata. No browser infrastructure or PDF library needed — pay per render. Accepts USDC payments on Base and Solana",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://visual.hugen.tokyo/visual/pdf"
      },
      {
        "description": "Screenshot any public URL — returns base64 JPEG/PNG with metadata (page title, file size, render time). Full-page scroll capture, CSS selector targeting, device emulation (iPhone 15 Pro, Pixel 7, iPad Pro 12.9), dark mode, ad/cookie banner auto-removal. No browser infrastructure needed, no server costs. Pay per capture. Accepts USDC payments on Base and Solana",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "jpeg",
            "group": "query",
            "name": "format",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "720",
            "group": "query",
            "name": "height",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://github.com/coinbase/x402",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "1280",
            "group": "query",
            "name": "width",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://visual.hugen.tokyo/visual/screenshot"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "visual-hugen-tokyo",
    "integrationType": "",
    "isNew": false,
    "name": "visual.hugen.tokyo",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.0275",
      "currency": "USDC",
      "maxAmount": "0.05",
      "minAmount": "0.02"
    },
    "provider": "visual.hugen.tokyo",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"f36b73bdd4f58b91590c1e6961a460348fe6d640100965c6364d24bae5d7e34c","id":4153,"kind":"listing","method":"baseline/1","observed_us":1793025277327450,"prev":null,"subject":"agentic_market:visual-hugen-tokyo","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0xf334b7e5ce18df4e2c2c3218d2a72adbe7ed2bf252352f3d812201cb33c9cf04
  2. 0x38ce9bfb463416b0f97ca199db54a85e15aebc3d5a284e5b7c59fc78117cd9c4
  3. 0xb9cadf60e1d69db3c04bc2bf1d3b78a4abcd31eaea2367928f889eab1c13386d
  4. 0x941932e12ce80de9e7df9b0840d496ca67eee55f2fd347b673c79006f8f09dfe
  5. 0x8232ec448094ab3b5cf781025cc4a523108d939f3f69c468b4aa6105ada62287
  6. 0x7ba554783515d13fe48a924ee2e8381177acdf25396c0dbc33e41b47e72a74b2
  7. 0xe9dc2639a56c17f49e7e900458c8eb2d53127c6a1b5bc42811c0b2086e3f076b
  8. 0x3d20c550e579768190c2211182be64075d3234962b6a6048c723b4fe509d241a
  9. 0x488da1831238d58942e96bb67705d58874d3df058d0910bd6904259ce950417a
  10. 0x99d8731791d25cbf46b06609ddccbc89c11d0e501cf96838a0656d4362666008
  11. 0xc50899a255d8f2b1b1fc55129b98f94521e73c5252d7c947abcfcdde2955260c
  12. 0x3e439c99553dde4ddc1a9189bc043fa92a4b6b41e39e7e6b21c10148f9558a78
  13. 0xa26f0437cba4d7d64f1cf98bf4f490e1ebb6f66a5e2331537b7ba8b3061084e0
  14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
  15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
  16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
  17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON