Evidence row 3425

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://qr.openverbs.com/v1/barcode"
    ],
    [
      "x402",
      "https://qr.openverbs.com/v1/decode"
    ],
    [
      "x402",
      "https://qr.openverbs.com/v1/qr"
    ]
  ],
  "name": "qr.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "qr.openverbs.com",
    "endpoints": [
      {
        "description": "Render a barcode (Code128, Code39, EAN-13/8, UPC-A/E, ITF-14, DataMatrix, PDF417) as SVG or PNG data URL.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "svg",
            "group": "body",
            "name": "format",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 1,
            "group": "body",
            "name": "scale",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "code128",
            "group": "body",
            "name": "type",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Generate barcode",
        "tags": [
          "generate barcode",
          "barcode generator api",
          "create code128 barcode",
          "ean upc barcode",
          "datamatrix barcode"
        ],
        "url": "https://qr.openverbs.com/v1/barcode"
      },
      {
        "description": "Read the text out of a QR code or barcode in a PNG or JPEG image. Auto-detects QR, DataMatrix, PDF417, Aztec and 1D symbologies (Code128/39/93, EAN-13/8, UPC-A/E, ITF, Codabar). A valid image with no code returns { found: false }; a payload that is not a parseable image is a 400.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAC0lEQVR4AWP4DwQACfsD/c8LaHIAAAAASUVORK5CYII=",
            "group": "body",
            "name": "image",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Decode QR / barcode",
        "tags": [
          "decode qr code",
          "scan barcode image",
          "read qr barcode",
          "barcode decode api",
          "extract code text"
        ],
        "url": "https://qr.openverbs.com/v1/decode"
      },
      {
        "description": "Render text (URL, vCard, Wi-Fi config, …) as a QR code — SVG string or PNG data URL.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "svg",
            "group": "body",
            "name": "format",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 64,
            "group": "body",
            "name": "size",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Generate QR code",
        "tags": [
          "generate qr code",
          "qr code api",
          "create qr code",
          "text to qr code",
          "url qr code generator"
        ],
        "url": "https://qr.openverbs.com/v1/qr"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "qr-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "qr.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.004",
      "currency": "USDC",
      "maxAmount": "0.004",
      "minAmount": "0.004"
    },
    "provider": "qr.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "generate barcode",
      "barcode generator api",
      "create code128 barcode",
      "ean upc barcode",
      "datamatrix barcode",
      "decode qr code",
      "scan barcode image",
      "read qr barcode",
      "barcode decode api",
      "extract code text",
      "generate qr code",
      "qr code api",
      "create qr code",
      "text to qr code",
      "url qr code generator"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"abdb0a692cba4dcfe1c92db449883498aac45d36b062d3ad41db475ba6b7e021","id":3425,"kind":"listing","method":"baseline/1","observed_us":1793025273205044,"prev":null,"subject":"agentic_market:qr-openverbs-com","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. 0xa2c5c2107075b1ace6a6a3d0ffd224fdf36ec3847ae28b493a5cfee59a7c47f1
2. 0xffa5e3c5fa607fcff9af47286bc81286709dde6a9729a8c31727c7396aa93ade
3. 0xad936dcc009b429e9b023136f240ca0d2405db21e7b8e225925856da95306cd2
4. 0x30bbfd34117c61906751ef9a245bd6958f68ca1530c3ed8780fcf31d52aeb46e
5. 0x0e387958d840ce6c67288628fe23d9854de04831d99f248dd613badb1aaff3e9
6. 0xa99a5391b3974823e4bb4465d2aab3b15779a8089150760cb924dd90e0deecef
7. 0xcabc6c4f9c02ec8c63d0640a7b6ecbc919bf92cbda4d3f1688210e8d997f3795
8. 0xdc80d2aca8c894cf0c6c968c3ba51846faf70de72eb51356fa3df29504d002a1
9. 0x502a5823cf001ec8a2d508629aa4ebb10cb60650ff6dd0ab9c4cebb840e0e4e9
10. 0xb3a29351e1b8013225f7601a802293835d75b405261ddeb88b2d8f50a6ded3ac
11. 0xd2bc27d81a73a53b7c724da36f189ebdd2fef396490722c3ee66192b798d20d0
12. 0x19537c574979327583a539261287714af2eee831125de819abab0f155acd3a75
13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae