Evidence row 4100

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": "2",
          "l30DaysUniquePayers": "2"
        },
        "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":"4a16a0d6b35785e6b2df91b7ce34a52f0a93f712b1e5d313a49b5d7c9179f816","id":4100,"kind":"listing","method":"baseline/1","observed_us":1793025277151695,"prev":null,"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 2026-10-26 (296695 rows).

1. 0x2a5d4adaadd5a0d37eabf231b4466954c7c44f28d51a7fef462992620f870717
2. 0xee1d427a598aa6bf1b02ccf924eca6009af5226fd96720cf726f30ef3b0fb8cb
3. 0xb0e5827f6fb1eccdbc4c2dcf56ab3c79f0be64e962b662143d88fc4d6a4637f4
4. 0x364dbbc43b37efae5a99f8fa5cce99de685ad75b5f55fb4cfbf22196c2c40883
5. 0xba70f30da892600cd407ce215262e04c7f7c226e3b875a86b2cd0da7148838a1
6. 0x1c4962d63a44bc4229bd4493e1ed9cf7bbc97a356a1e5d6fb34de6053c308a7d
7. 0xbf737d7be3c0b19f8e232ecb1a5cc03a6c328a4f0a782471e499e65e62b81473
8. 0x8f40b84f91fe8a6c4db94ccb7d7281028933445a77dc8f12f80be83617c65994
9. 0xca02ca171023de6641c0bb624d2ae22d3728f218a6366066c9c6bd3a2ab426b7
10. 0x4794af3ce7667b405167c54a941da6ec756bac415e8d990090cc042e6212d8fc
11. 0x7b0bb4483af5e03d9f02e715a84d790ec3df1fc57d38f1d1a5ed296a7e822d7f
12. 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
13. 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae