Evidence row 3959866

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://html.openverbs.com/v1/decode"
    ],
    [
      "x402",
      "https://html.openverbs.com/v1/encode"
    ],
    [
      "x402",
      "https://html.openverbs.com/v1/sanitize"
    ],
    [
      "x402",
      "https://html.openverbs.com/v1/strip"
    ]
  ],
  "name": "html.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "html.openverbs.com",
    "endpoints": [
      {
        "description": "Decode HTML entities (named, decimal and hex numeric references) back into plain text.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "html",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "HTML entity decode",
        "tags": [
          "html entity decode",
          "decode html entities",
          "unescape html text",
          "html entities to text",
          "numeric entity decoder"
        ],
        "url": "https://html.openverbs.com/v1/decode"
      },
      {
        "description": "Encode text to HTML entities so it can be safely embedded in markup. By default uses hex numeric references; set useNamedReferences for named entities (&, ©) or encodeEverything to encode every character.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": false,
            "group": "body",
            "name": "encodeEverything",
            "required": false,
            "type": "boolean"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": false,
            "group": "body",
            "name": "useNamedReferences",
            "required": false,
            "type": "boolean"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "HTML entity encode",
        "tags": [
          "html entity encode",
          "encode html entities",
          "escape html text",
          "text to html entities",
          "html escape api"
        ],
        "url": "https://html.openverbs.com/v1/encode"
      },
      {
        "description": "Sanitize untrusted HTML to a safe allowlist. Keeps common formatting and links but removes dangerous scripting tags, inline event handlers and unsafe URL schemes. Ideal for rendering user-supplied HTML.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "html",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "Sanitize HTML",
        "tags": [
          "sanitize html",
          "clean untrusted html",
          "xss html sanitizer",
          "remove script tags",
          "safe html allowlist"
        ],
        "url": "https://html.openverbs.com/v1/sanitize"
      },
      {
        "description": "Remove all HTML tags, returning the plain text content. Entities are decoded to real characters by default (set decodeEntities=false to keep them encoded).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": false,
            "group": "body",
            "name": "decodeEntities",
            "required": false,
            "type": "boolean"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "html",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Strip HTML to text",
        "tags": [
          "strip html tags",
          "html to plain text",
          "remove html markup",
          "extract text from html",
          "decode html text content"
        ],
        "url": "https://html.openverbs.com/v1/strip"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "html-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "html.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "html.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "html entity decode",
      "decode html entities",
      "unescape html text",
      "html entities to text",
      "numeric entity decoder",
      "html entity encode",
      "encode html entities",
      "escape html text",
      "text to html entities",
      "html escape api",
      "sanitize html",
      "clean untrusted html",
      "xss html sanitizer",
      "remove script tags",
      "safe html allowlist",
      "strip html tags",
      "html to plain text",
      "remove html markup",
      "extract text from html",
      "decode html text content"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"890247307eeb574a61609dbce2e257b17f541d012ab4d5ad547e474328982d24","id":3959866,"kind":"listing","method":"sync.agentic_market/1","observed_us":1794076228496680,"prev":3439425,"subject":"agentic_market:html-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 2026-11-07 (195826 rows).

1. 0x516a378f0a9cec55f25bd740192daf0abbc659f71d35e898109b26baff5219f1
2. 0xb39034ce078e0ba6529ebdbedacbc979e4ad4137183a45e096fd3aea6d8897cb
3. 0x2b3a2436afc48c591dafeedd2ee280ebeac30aefd4d66dcd2fbfbb6c6c59c592
4. 0x47b9713a6cf57e2a6dcc3d3adce8b0a8f1d90164f47391f16a0d76337c0f2378
5. 0x2db635b861ab399a519b082963166ba0914077ee89ae4ca6384b156907f5ed02
6. 0xbfef062a928bdb0d0a423743e40984a3840a782917eda78a2ae952ef750d479d
7. 0x5b916598b2ca210a0dc953ba97e1ad2b5570e77d38077021319cb6a8085554f0
8. 0x412f19fc9208755be10d35146d34272db6e28bbea459ad1eea1dd8521f3ddaa4
9. 0xcd39a63556d62d8809e0b4a07aa793557eba619e3ed2eca794c9ce85b5fa39ed
10. 0x1965a748328bac8f114b4c111ddbdd4455bf74024e7dd9f28cb956d214dfd7dd
11. 0x8227afc251b839c63f77d3946406e6ee61001f9e42a53844d7982c89360c6762
12. 0xc9c30027da6a1f08b5b880f5e0e6b8705017580d111e182bf33863e42bb0dfbb
13. 0xc4120aeb12547f09661af6703e81437a23bd38ba065b3075f70bd20e35771d53
14. 0xd65824e287abd80d02260ba918668ef1c4c1d016243891677bfc31ebb1eb16e7
15. 0x1440bd4864ece4f3cb1a2fc48e88ddbd78cefd359ae16ceeb69a13e36b55021a
16. 0xf0a56561418cd0342a328707933cc222d8fa725efff7ffd081e0226ee8c46c0b
17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa