Evidence row 2189696

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://vat.openverbs.com/v1/czechia"
    ],
    [
      "x402",
      "https://vat.openverbs.com/v1/finland"
    ],
    [
      "x402",
      "https://vat.openverbs.com/v1/france"
    ],
    [
      "x402",
      "https://vat.openverbs.com/v1/latvia"
    ],
    [
      "x402",
      "https://vat.openverbs.com/v1/norway"
    ],
    [
      "x402",
      "https://vat.openverbs.com/v1/poland"
    ]
  ],
  "name": "vat.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "vat.openverbs.com",
    "endpoints": [
      {
        "description": "Validate a Czech VAT (DIČ) number for a legal entity against the official register. Validity means the subject exists and is live in the VAT (DPH) register.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "CZ00177041",
            "group": "body",
            "name": "vatNumber",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "7",
          "l30DaysUniquePayers": "5"
        },
        "serviceName": "Validate Czech VAT number",
        "tags": [
          "czech vat validation",
          "czechia dic lookup",
          "validate czech ico",
          "ares company lookup",
          "czech vat api"
        ],
        "url": "https://vat.openverbs.com/v1/czechia"
      },
      {
        "description": "Validate a Finnish VAT (ALV) number against the official VAT register. Validity means the entity exists and holds a live registration.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "FI01120389",
            "group": "body",
            "name": "vatNumber",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Validate Finnish VAT number",
        "tags": [
          "finnish vat validation",
          "finland alv lookup",
          "validate finnish business id",
          "ytj company lookup",
          "finland vat api"
        ],
        "url": "https://vat.openverbs.com/v1/finland"
      },
      {
        "description": "Validate a French VAT (TVA) number against the official company register. Validity means the SIREN exists and the company is administratively active.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "FR27552032534",
            "group": "body",
            "name": "vatNumber",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Validate French VAT number",
        "tags": [
          "french vat validation",
          "france tva lookup",
          "validate french siren",
          "siren company lookup",
          "france vat api"
        ],
        "url": "https://vat.openverbs.com/v1/france"
      },
      {
        "description": "Validate a Latvian VAT (PVN) number against the official VAT-payers register. Validity means the number has a currently active entry in the register.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "LV40003245752",
            "group": "body",
            "name": "vatNumber",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Validate Latvian VAT number",
        "tags": [
          "latvian vat validation",
          "latvia pvn lookup",
          "validate latvian vat",
          "vid vat register",
          "latvia vat api"
        ],
        "url": "https://vat.openverbs.com/v1/latvia"
      },
      {
        "description": "Validate a Norwegian VAT (MVA) number against the official business register. Validity means the entity exists and is entered in the VAT register.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "NO 923 609 016 MVA",
            "group": "body",
            "name": "vatNumber",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Validate Norwegian VAT number",
        "tags": [
          "norwegian vat validation",
          "norway mva lookup",
          "validate norway org number",
          "bronnoysund vat check",
          "norwegian business register"
        ],
        "url": "https://vat.openverbs.com/v1/norway"
      },
      {
        "description": "Validate a Polish VAT (NIP) number against the official VAT register. Validity means the taxpayer's VAT status is active (Czynny).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "PL5260250274",
            "group": "body",
            "name": "vatNumber",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Validate Polish VAT number",
        "tags": [
          "polish vat validation",
          "poland nip lookup",
          "validate polish nip",
          "vat white list lookup",
          "poland vat api"
        ],
        "url": "https://vat.openverbs.com/v1/poland"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "vat-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "vat.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.006",
      "currency": "USDC",
      "maxAmount": "0.006",
      "minAmount": "0.006"
    },
    "provider": "vat.openverbs.com",
    "providerUrl": "",
    "serviceName": "Validate",
    "tags": [
      "czech vat validation",
      "czechia dic lookup",
      "validate czech ico",
      "ares company lookup",
      "czech vat api",
      "finnish vat validation",
      "finland alv lookup",
      "validate finnish business id",
      "ytj company lookup",
      "finland vat api",
      "french vat validation",
      "france tva lookup",
      "validate french siren",
      "siren company lookup",
      "france vat api",
      "latvian vat validation",
      "latvia pvn lookup",
      "validate latvian vat",
      "vid vat register",
      "latvia vat api",
      "norwegian vat validation",
      "norway mva lookup",
      "validate norway org number",
      "bronnoysund vat check",
      "norwegian business register",
      "polish vat validation",
      "poland nip lookup",
      "validate polish nip",
      "vat white list lookup",
      "poland vat api"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"fd3adfd3cb0d14ccf31382a7ec5fc581f2013d4cd7f311a0d0bb50e4bef88bbd","id":2189696,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793643638485014,"prev":561979,"subject":"agentic_market:vat-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 2026-11-02 (444186 rows).

1. 0x8136c93fc900b7bb648aeabf5feda78a4ea61f1fd684b894f1ccf0e67cc52838
2. 0xe4bdef8d355c8f7aeb35ad58009559597820dcd8b7a937f869290aee1919d6c5
3. 0x0df396e900892a104358d51c8c1c3f057e75c9c0c52784f7132e98c81a596855
4. 0x842eef93e508ade55d7588978714bb2ea17863995d2cdfa27bb59d0ec01be44b
5. 0x6de66ee02027ab366a876ee6cb7bf6d8852f18e643f43aa63adf3aa43dbc26cf
6. 0x968e95c83f045a84a3bd378f5da4b2df21e5e35035b5c7c034c2f1276e1cdd7b
7. 0x6cc43c114b0be1fc2a87b2c1d0fe0702a48e913a167c670b6e29027c54a9c597
8. 0xda15fa5144884e4d6440f6213a64a8c7bd71706688724c352ec4c88fd5dd70a0
9. 0x0ec0973e5b1a378cab69ebf064b6342783751ec8bf4efec6210ffc781afbdc65
10. 0xe28d76f7809d77858d312b728ac71d1bd5a6c872e61c7751211ec108bb862641
11. 0xe00cb3e4c90b6dc84033ecbd887dfee3d2cd9c6682accc0ca34f329e01ac64da
12. 0x71305c272656503414016b5f13ff8cba828a7f92b6aa86f744081781398d24d1
13. 0x6a06852e71057f53bcc6c658511dcfcda03ac93f8dd86e79a4db42c8e85677b9
14. 0x5d40473873ebe898bcca4e49df524bf4345695f06abe3579f4bdb7b306b863f8
15. 0x46991481c678139203ebc3c532867ce1643c09ddc33966c4fb48bb7f033ab22f
16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af