Evidence row 3439485

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://iso.openverbs.com/v1/country"
    ],
    [
      "x402",
      "https://iso.openverbs.com/v1/currency"
    ],
    [
      "x402",
      "https://iso.openverbs.com/v1/language"
    ],
    [
      "x402",
      "https://iso.openverbs.com/v1/search"
    ]
  ],
  "name": "iso.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "iso.openverbs.com",
    "endpoints": [
      {
        "description": "Look up a country by its ISO 3166-1 alpha-2 code, alpha-3 code, numeric code or English name. Provide exactly one field. Returns all codes plus the UN region.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "US",
            "group": "body",
            "name": "alpha2",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "ISO 3166-1 country lookup",
        "tags": [
          "iso country lookup",
          "iso 3166 api",
          "country code lookup",
          "alpha2 country code",
          "alpha3 country code"
        ],
        "url": "https://iso.openverbs.com/v1/country"
      },
      {
        "description": "Look up an active ISO 4217 currency by its alphabetic code or numeric code. Provide exactly one field. Returns the code, numeric code, name and number of minor units (decimal places).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "USD",
            "group": "body",
            "name": "code",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "ISO 4217 currency lookup",
        "tags": [
          "iso currency lookup",
          "iso 4217 api",
          "currency code lookup",
          "currency minor units",
          "numeric currency code"
        ],
        "url": "https://iso.openverbs.com/v1/currency"
      },
      {
        "description": "Look up a language by its ISO 639-1 alpha-2 code, ISO 639-2 alpha-3 code (bibliographic or terminologic) or English name. Provide exactly one field.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "en",
            "group": "body",
            "name": "alpha2",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "ISO 639 language lookup",
        "tags": [
          "iso language lookup",
          "iso 639 api",
          "language code lookup",
          "alpha2 language code",
          "alpha3 language code"
        ],
        "url": "https://iso.openverbs.com/v1/language"
      },
      {
        "description": "Fuzzy-search countries, currencies and languages by name or code. Scope with `registry` (defaults to all). Matches are ranked exact-code/name → prefix → substring.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 1,
            "group": "body",
            "name": "limit",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "query",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "country",
            "group": "body",
            "name": "registry",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "Search ISO registries",
        "tags": [
          "search iso codes",
          "iso registry search",
          "find country currency language",
          "fuzzy iso lookup",
          "search standards registries"
        ],
        "url": "https://iso.openverbs.com/v1/search"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "iso-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "iso.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "iso.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "iso country lookup",
      "iso 3166 api",
      "country code lookup",
      "alpha2 country code",
      "alpha3 country code",
      "iso currency lookup",
      "iso 4217 api",
      "currency code lookup",
      "currency minor units",
      "numeric currency code",
      "iso language lookup",
      "iso 639 api",
      "language code lookup",
      "alpha2 language code",
      "alpha3 language code",
      "search iso codes",
      "iso registry search",
      "find country currency language",
      "fuzzy iso lookup",
      "search standards registries"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"69b1995bdc5068ae2eb595827bffeb7048dbd9f5f2cb03e31ae3c550bc7b13f8","id":3439485,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793903221485075,"prev":2648,"subject":"agentic_market:iso-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. 0x8927bdefe13abba2fd49d41794859c8996a440d53ac561dfa33d4cea1b5ad510
2. 0xf3d2f91338143333eb65fa5b8203a07715eb64ea87b0fa4844cbd35f5753f326
3. 0xbd894b31e3f1c2508eb19da1bd2cac72d2e9af66817238689f55fc3d0297a64a
4. 0x2e7784076c9e8b6765c3bcef0c7fa8453c11583e9bcdca4b80daa827f78e5f24
5. 0x7053563bd0a0b75b9bc6c0e472a93a86465994725d49ad7b54bcd4190dbb9843
6. 0x76fd5fa4f5db88787832939906d8815c7f43f24600371ccdb3b7ba6baf698458
7. 0xbc86666a7ca2024002268d50acc995c78e2e32c7f8d3649b8ead4e468336a1b1
8. 0xeda34406043e7414a5d102a6031b980a216c047e7a02e478b4c3cd7c25203d33
9. 0xa6933accaab11bffac7be8163ca0ec551b3020f17044292ff07bd56851975ced
10. 0x99bfa75bf8609b0a3cc07e0e6ce98b2bdfda2bd784899489c587dc74c4858701
11. 0x1a5f8b944cf893db93dc148e30b35a545ac0e066fd63335a619495cc36a8446a
12. 0x7e8581639563b98aaa7081bcefbfd3cd60a397669f211d921b728e659e41dbf3
13. 0x3e9755642a246c284551c3b1f3b1218a5ae17ef8f2e97cf15758fe25ef2cfac6
14. 0xb09333620e45bd22d68e7eda9b4f6597d61b21df0d3c512813281cef1366dbc5
15. 0x1a1af412020b11baae1f58b16dc455a4c19a3c7ab9a1aeceb07083214f5a8b8e
16. 0x5c64b7138585466e7e8be72af6f3dc72c511db2c0c1dc5b6e34ad4e9456c2308
17. 0x7e5b4628b4269525ce0744fb873651b9d7be5748de44b7e6b858af09c7e30bd8
18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94