Evidence row 3026

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://numeral.openverbs.com/v1/ordinal"
    ],
    [
      "x402",
      "https://numeral.openverbs.com/v1/radix"
    ],
    [
      "x402",
      "https://numeral.openverbs.com/v1/roman"
    ],
    [
      "x402",
      "https://numeral.openverbs.com/v1/words"
    ]
  ],
  "name": "numeral.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "numeral.openverbs.com",
    "endpoints": [
      {
        "description": "Format a non-negative integer as an ordinal — both the suffixed form (21st) and the ordinal words (twenty-first).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 1,
            "group": "body",
            "name": "number",
            "required": false,
            "type": "number"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "51",
          "l30DaysUniquePayers": "6"
        },
        "serviceName": "Ordinal",
        "tags": [
          "ordinal number formatter",
          "number to ordinal",
          "add ordinal suffix",
          "ordinal words",
          "format 21st"
        ],
        "url": "https://numeral.openverbs.com/v1/ordinal"
      },
      {
        "description": "Convert an integer between numeral bases 2–36 (binary, octal, hex, base36, …). Arbitrary size via BigInt; digits are case-insensitive and a leading minus is allowed.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 2,
            "group": "body",
            "name": "fromBase",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 16,
            "group": "body",
            "name": "toBase",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "101010",
            "group": "body",
            "name": "value",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "50",
          "l30DaysUniquePayers": "6"
        },
        "serviceName": "Radix (base) conversion",
        "tags": [
          "base conversion",
          "convert number base",
          "binary to hex",
          "decimal to base36",
          "radix converter api"
        ],
        "url": "https://numeral.openverbs.com/v1/radix"
      },
      {
        "description": "Convert between integers (1–3999) and Roman numerals in either direction — a digit string is encoded to Roman, a Roman numeral is decoded to an integer. Non-canonical numerals (IIII, IC) are rejected.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "MCMXCIV",
            "group": "body",
            "name": "value",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "49",
          "l30DaysUniquePayers": "5"
        },
        "serviceName": "Roman numerals",
        "tags": [
          "roman numeral converter",
          "convert roman numerals",
          "roman to integer",
          "integer to roman",
          "validate roman numeral"
        ],
        "url": "https://numeral.openverbs.com/v1/roman"
      },
      {
        "description": "Spell an integer out in English words, e.g. 123 → \"one hundred twenty-three\". Negatives are prefixed with \"minus\".",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 1,
            "group": "body",
            "name": "number",
            "required": false,
            "type": "number"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "52",
          "l30DaysUniquePayers": "7"
        },
        "serviceName": "Number to words",
        "tags": [
          "number to words",
          "spell out number",
          "integer to english words",
          "convert number to text",
          "english number words"
        ],
        "url": "https://numeral.openverbs.com/v1/words"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "numeral-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "numeral.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "numeral.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "ordinal number formatter",
      "number to ordinal",
      "add ordinal suffix",
      "ordinal words",
      "format 21st",
      "base conversion",
      "convert number base",
      "binary to hex",
      "decimal to base36",
      "radix converter api",
      "roman numeral converter",
      "convert roman numerals",
      "roman to integer",
      "integer to roman",
      "validate roman numeral",
      "number to words",
      "spell out number",
      "integer to english words",
      "convert number to text",
      "english number words"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"b47340fc2f1b473f954355610a9e67370cefb140c831bb80c3cf6ed4ffbf7ee3","id":3026,"kind":"listing","method":"baseline/1","observed_us":1793025269032829,"prev":null,"subject":"agentic_market:numeral-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. 0xe388baac2dc2814d90904551a49e3a6001284c57bfa2f9264946402afd29547e
2. 0x21e979ceb332f91447bfc6fb5adf74a74b7340031034d2f42ba1df6cd5489b83
3. 0xe3f8be498acaa65f500dd71da9657745f12fd3502ba5027300a85467e375da62
4. 0x65069a4d20e9f2a5054b24ed3c3a8f139873b837fdc807ddfc9f22a0694850f6
5. 0x7450c0899a4cb286c08fa17a4cb47717474a740ed14fd8deea02580cffdde87b
6. 0x323215719beb5a571fa92b3d636ae63aa83e8bfbf178d2b1106f37ff04f02b9c
7. 0x213c6d1914c42cfbcd735e03fcc4978fbd315ae0949ad7e08d79a97c709f44d9
8. 0xb8bc27f00b9db2462a938f0bc0e80a908623dcc9cfdca2828fda588c58395d1f
9. 0xf64d68c7513850f261db3fb5e203dff7235733de2dda42d2f91ab2886967fe21
10. 0x524cdad3ff21631a037fd9cf4afb42f4fe79c72ee7a2da0b514327762fb35ecc
11. 0xb545b804be0d2933a674be6ac915c6c6235897d0274e66143aa7cf879b9d86a3
12. 0x8e135936797442c4eea61915f2c9f8f6df06e1322204cd0e6986ada3e54c77cc
13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae