Evidence row 4161784

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": null,
        "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": null,
        "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": null,
        "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":"be5494d27eebf01e08ee8f90f685fa5432bc1356cffd8914737ee37344c0d3c6","id":4161784,"kind":"listing","method":"sync.agentic_market/1","observed_us":1794162749051692,"prev":3960170,"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 2026-11-08 (183509 rows).

1. 0x9411b1be605b7d677efac702a2a1c9016c63c3858fc14ddee3b6d5bfe23cc1aa
2. 0xc4371012079b438ba4f6f904b68b5150badc5c3d6bcb8b1706a270269dd8bad1
3. 0x20c2dcd59e076bdfe6b6bcff6b975a5ab19076878e4a98282f876b434eaf21fc
4. 0x7784c3eb59403c50f68cce7327fe0fd326c77b1ba2eba3fc993447ff15647370
5. 0xad8b1a53ddfb047b070b339c4c839f5d0ab7c62d92fb48241cdbe89389ee0f0e
6. 0x911f7d021acc0469b61b737557c95fc7c22b543465c47e61505554b91da741d2
7. 0x7717b7607f543aeb64b8db410775237078c4860103f87ef1e7884ac745608fd8
8. 0x74fa7f219c1aae4781780fa1bd26a7593d6aba79cb461d2959536b3b51440fc7
9. 0x7a47669e407935442a9df61067284c0d901a2d5e1eca9a1e69ad3d5091799c0a
10. 0x639b7d92c6599e07bf4d7a354fcda9fc06db1f2b18cb35c899a36025e31ec40e
11. 0x85571c4eec81ffd33d6d0379900e429931cf2235bd0ef6fc2f59d2c789e33d54
12. 0xcb19e3c248d17cd96c53d67df24ab44226f44df44d958ed01e5e7faf70f7b21c
13. 0x728a62e3da0dfa61fa8b6d45c62983dc6deb14629ccfadb5f3020498cd66900a
14. 0xfefee2095572e6e0834fb05d7d7a858ae8f57288bd41c5891a60c6286b9e07a8
15. 0xd940d63ce3037598bb824acb7b8507d1a292860dcd46c4107cbb045adc40cd3f
16. 0x15fcf46472196b84319db11d0928bd9a7c1bffd0bf592e61363ef0eddd378bc6
17. 0x45874ada32d7ee6c17eade12dec01ab7504d43d23be0d9dbb51e642eb39966a4
18. 0x1f0ff2af9da38fef1beef5d2dbcf41f592dca17729b7ab9b9c0b6ef354dc3b83

Day root

0xbf84ec37f88c5f23d2144bd7dbc1ea0f8edc93b3764a885a7164b7923ff3460b

Chained

0x9fea188e4965f50de727e97c40e18d5ff2c2ddbfd4f1ae65e22ddd6f676bccfc

Published

On Arc Testnet, block 71451618: 0xb5273480942a54cd07f291b8319e59976f8d9d0583181c764eed04c9b3f7a022