Evidence row 3439425

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": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "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": "2",
          "l30DaysUniquePayers": "2"
        },
        "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":"1ab8d5437c3697db0330e78af521f2109abc0513b2bc1f5dd3a3301e18a829be","id":3439425,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793903214128808,"prev":30224,"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 2026-11-05 (322504 rows).

1. 0x18b2d904f554038d4859874ec4fd5bfb8c8445314a84925cabe9f9908cf5c5cc
2. 0x917cc452eb4c03406ed5083f69511d322f1b16f4adab060973072312d7956a90
3. 0xa86a3430668ceb4a24c3748950dabd50697dc77ec9ca186ed4ac6764f790c27b
4. 0xd37611953ef5efddedd6b1973dabea63203a35f7cc5faf33e94dfb927c1095f9
5. 0x5ba074dbbcc2163b70bed453760eb517102b495bdd3c130fb55516abbd1ba77f
6. 0xfff6df22444ce954360a2fcb46962dc2a17068f6e06157de386f761365607e68
7. 0xac5012194b91d544187bbeb30899b8d79a2882e66ca0cbc371f48d144af7ac30
8. 0x189a32fa433e61e8d4332a9a57c3b7475e72b8781f14c11ed122878911924459
9. 0x60400bdc8300b1ec42e4927f50e24b9cd5941d78e28d16c6abc93c017ea03eea
10. 0xc4cec4855054e38753a5edeb8629d04cdbb6e7b0c2a58d7f781261af236ca6a1
11. 0x9c462fc7d299ecee2cb5b569f7756080ea6af8869af6fb117c7afc4cec51d683
12. 0x462120150b71972a9dccfeb3c561b859ce4febfe60f5ddffaf5a5ddd0e495659
13. 0xe7dd35b25831ecd57d8eb7babdd2a8ab45d8eff0451e8a675499c6f431210fa0
14. 0x887993386ba8c77165972bfd61a7626182576fdc51fd76a24fcaca885bf67d2a
15. 0x752bb7ff1be85646eaf6af7e83e853b7b33e92ad9c57231f0b796b8997fb1076
16. 0xcde4d0d0f64b40921f36a3f07dfe9c7256f1d0a8925aed414788c614314b871e
17. 0x0cdf39687556f127f9de2f03ec7df8e10e613bf9487760cbe3eaaaa02d8d48b4
18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94