Evidence row 785123

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://apiwitchcraft.duckdns.org/einvoicing/:country"
    ],
    [
      "x402",
      "https://apiwitchcraft.duckdns.org/fx"
    ],
    [
      "x402",
      "https://apiwitchcraft.duckdns.org/vat/:country"
    ]
  ],
  "name": "apiwitchcraft.duckdns.org",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:10",
      "eip155:137",
      "eip155:42161",
      "eip155:43114",
      "eip155:56",
      "eip155:8453",
      "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "solana:etwtrabzayq6imfeykouru166vu2xqa1"
    ],
    "category": "",
    "description": "",
    "domain": "apiwitchcraft.duckdns.org",
    "endpoints": [
      {
        "description": "Check e-invoicing mandate and format requirements (Peppol/UBL, CIUS, clearance vs continuous transaction control) for any EU country in one x402 call. Surfaces VAT-compliance rules for B2B/B2G invoicing so agents and finance apps stay compliant before issuing. Pay per lookup in USDC on Base, no API key, instant JSON.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "PL",
            "group": "path",
            "name": "country",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [
          "compliance",
          "e-invoicing",
          "vat"
        ],
        "url": "https://apiwitchcraft.duckdns.org/einvoicing/:country"
      },
      {
        "description": "Live foreign-exchange spot rate between any two supported currencies via CoinGecko exchange_rates (e.g. USD/EUR, BTC/JPY). Returns cross rate computed from CoinGecko's BTC-denominated rates. x402 pay-per-call on Base USDC — no API key, no subscription. Not historical rates; single spot snapshot per call. Returns 400 on unsupported pair.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "USD",
            "group": "query",
            "name": "from",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "EUR",
            "group": "query",
            "name": "to",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "",
        "tags": [
          "fx",
          "forex",
          "market-data"
        ],
        "url": "https://apiwitchcraft.duckdns.org/fx"
      },
      {
        "description": "Validate any EU VAT number against the official VIES registry and resolve the registered business name and address in one x402 call. Covers all 27 EU member states for VAT compliance, B2B invoice validation, and tax-ID verification in agentic finance workflows. Pay per check in USDC on Base, no API key, instant JSON.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "DE",
            "group": "path",
            "name": "country",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [
          "compliance",
          "vat",
          "tax"
        ],
        "url": "https://apiwitchcraft.duckdns.org/vat/:country"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "apiwitchcraft-duckdns-org",
    "integrationType": "",
    "isNew": false,
    "name": "apiwitchcraft.duckdns.org",
    "networks": [
      "Base",
      "eip155:10",
      "eip155:137",
      "eip155:42161",
      "eip155:43114",
      "eip155:56",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp",
      "solana:etwtrabzayq6imfeykouru166vu2xqa1"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "apiwitchcraft.duckdns.org",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "compliance",
      "e-invoicing",
      "vat",
      "fx",
      "forex",
      "market-data",
      "tax"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"2535c7ddb6fc07eccb71640c21d21321a37c7621fe17929b39e77a128fbf1ded","id":785123,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793211204227720,"prev":547631,"subject":"agentic_market:apiwitchcraft-duckdns-org","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x97092d2a383d0526ce526a49ecec8d928935d183f7b767014da71eb0281554e8
2. 0x718f58fe5eef2045344acd19dc6d8153e88908154e87d9d487d04c0fcd6c7be5
3. 0x5740e1b4e71d106a30dcfd2319ba6678d8ab7dc6d8d23ada044ee199c88e1047
4. 0xf702a027c5b8aa444128d2d21596bfde8be105ad26a37a5b0f7b81e070165928
5. 0xce06ea8247743f665b99bd632009e7a8a07a9a955456b094df507cb40d840209
6. 0x6441fd1f1023852cd442011647b72ccbe97185e3c74dff003fd8e4c297837d48
7. 0xe348c52714ffe78cdc906f8f18b2f4bbc5ea0cb3072f9f76dcbb2cc59f38b809
8. 0x445fecfa2ef1d05147a5aac2d9b216f3fc221fcbbb978f42a4fee3a99f624667
9. 0xb51d80f4dc0f88d48e2204d26f593fdc6fecd00e6e8f8ac97aea3a683f22a007
10. 0xe1fb8479a8a3a18c5815a0c68af59ef2975233adaecd4e135ea6cbc27f4bb0bd
11. 0x891ee1d037cc6ffff1f29e92f0b2976a709b4f0e3b534cb16c5656137a7fa37a
12. 0x3eea6e3529c46068533dc0c7b71df5ad1310bab2bb02c7c4768dde5e97569b01
13. 0xddcdda94a0fa130582c880a437970c1e6d81827500911acf5ca2c5b1aaafe0a6
14. 0x088061c71633d244b99c7cc0814bbe03af458b18487f352611ae649c73589766
15. 0xcf313ac43fef601c9e46f82a687b6a3c655f47c31675c1791c49de20295be63d
16. 0x0f8977bd16865247451d1ee836b084081d3d0cd17d6a07353fad0c70393c7403
17. 0xe08e8bd91858a8a10c46ecde9c29a6288b960987303173c5e882afb46ce91fa0
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae