Evidence row 3438598

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://encoding.openverbs.com/v1/detect"
    ],
    [
      "x402",
      "https://encoding.openverbs.com/v1/inspect"
    ],
    [
      "x402",
      "https://encoding.openverbs.com/v1/normalize"
    ],
    [
      "x402",
      "https://encoding.openverbs.com/v1/transcode"
    ]
  ],
  "name": "encoding.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "encoding.openverbs.com",
    "endpoints": [
      {
        "description": "Guess the character set of a base64-encoded byte buffer: sniffs a byte-order mark, then falls back to ASCII / UTF-8 validation and a UTF-16 NUL-pattern heuristic. Returns a best-effort charset with a confidence label — a low-confidence guess is still a successful 200.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "SGVsbG8=",
            "group": "body",
            "name": "bytes",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Detect character set",
        "tags": [
          "detect character set",
          "charset detection api",
          "encoding detector",
          "detect utf-8 bytes",
          "base64 charset lookup"
        ],
        "url": "https://encoding.openverbs.com/v1/detect"
      },
      {
        "description": "Break a string into its Unicode code points, each with its U+ notation, decimal value and UTF-8 / UTF-16 byte layout, plus total byte lengths.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Inspect code points",
        "tags": [
          "inspect unicode code points",
          "unicode codepoint lookup",
          "string byte layout",
          "utf-8 bytes inspector",
          "utf-16 code units"
        ],
        "url": "https://encoding.openverbs.com/v1/inspect"
      },
      {
        "description": "Apply a Unicode normalisation form (NFC, NFD, NFKC or NFKD) to a string. Reports whether the text changed and its length in UTF-16 code units and code points.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "NFC",
            "group": "body",
            "name": "form",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "18",
          "l30DaysUniquePayers": "6"
        },
        "serviceName": "Unicode normalisation",
        "tags": [
          "unicode normalization api",
          "normalize unicode string",
          "nfc nfkc converter",
          "unicode form conversion",
          "canonical unicode text"
        ],
        "url": "https://encoding.openverbs.com/v1/normalize"
      },
      {
        "description": "Decode a base64 byte buffer from one character set and re-encode it into another (utf-8, utf-16le, utf-16be, latin1, ascii). Characters that the target set cannot represent, or bytes invalid for the source set, are clean 400s.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "SGVsbG8=",
            "group": "body",
            "name": "bytes",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "utf-8",
            "group": "body",
            "name": "from",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "utf-16le",
            "group": "body",
            "name": "to",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Transcode between character sets",
        "tags": [
          "transcode charset",
          "convert text encoding",
          "utf-8 to utf-16",
          "latin1 to utf8",
          "decode base64 bytes"
        ],
        "url": "https://encoding.openverbs.com/v1/transcode"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "encoding-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "encoding.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "encoding.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "detect character set",
      "charset detection api",
      "encoding detector",
      "detect utf-8 bytes",
      "base64 charset lookup",
      "inspect unicode code points",
      "unicode codepoint lookup",
      "string byte layout",
      "utf-8 bytes inspector",
      "utf-16 code units",
      "unicode normalization api",
      "normalize unicode string",
      "nfc nfkc converter",
      "unicode form conversion",
      "canonical unicode text",
      "transcode charset",
      "convert text encoding",
      "utf-8 to utf-16",
      "latin1 to utf8",
      "decode base64 bytes"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"12861dabe7d459548d411a76964e405ffb048065c0fb79ab8c36644012756f41","id":3438598,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793903196896060,"prev":2204,"subject":"agentic_market:encoding-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. 0xfe5e264364324750826ea54e5367df53ae7a8580c83dce28efbfc044bac55693
2. 0xd1fba34128232673316f22844480a79c10b3161951f7a8024fc39b7f7675cc11
3. 0x2ef4e3e8370a8a46c8a8932d998f0d75d9b9ac2f3edc58d34242b278254ea467
4. 0x376290f07fc5d16f5117310f5efff91edddba547145df3bcb3cce01afb879827
5. 0x3100986ec1b0c60c7e384c64be6f4a3a35c38a2e09fc596fb2401f80fe826be7
6. 0xde29bc5e1ca5a28d0f30ff6c113cf76281467386e7c7238c5b12ce9239eabc27
7. 0x9e6ca8734c3e5e78157fa22e02a389de698524a4e4b5bbbbb7157c978f1e5ee0
8. 0xca8b120a416ccfa02b4b06d8e8fd00b90993b28440e9c1da6fb73a949af49893
9. 0xe54a5c8c727b7527868a93298a28da9d479c7d8caad42d41699607a0745291ef
10. 0x5f1cf24aeefdaeecc8dcf5129a0dd2471ad4e195ae232ba5f2a91227b203769a
11. 0x514693e20d4507fb33a84073cc86b7c4cc2f1e1f2743fdeeb7ecc9f64df4effc
12. 0x00ee6b3612b08ec71bf906e7ed1d4372ce6af19d564aa6b217aca08e665e778e
13. 0x96089f99041b0447b39397a53cd16be1d825106c3cf5ed0904de1f7169d97047
14. 0xc52fdd499240d4cae496484b3da9c532542859f0626ea2a2fc243490680039e2
15. 0x46e57eb471bdfedc5371f9f8dd93e03a0ef82a84f79b917a40533d34f61e890c
16. 0x595efddb5b196a921c775c54d0aa541065f1802bfefb8bd003a60b16925c4b58

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94