Evidence row 4597

Observed 26 Oct 2026, 14:34 UTC, by baseline/1.

Kind: listing
About: source_record agentic_market:x402-tools-vercel-app
Recorded: 26 Oct 2026, 14:34 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 656f2349c4bd5981a897fe18a2bb1fcdc54b6e9087a9f3d64b00f890c4e87735
Leaf: 0x08d83da179334448567ab731292c722d339a28dbd5bb4a96522bf1cf73958e8c

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-tools.vercel.app/api/concerts"
    ],
    [
      "x402",
      "https://x402-tools.vercel.app/api/horoscope"
    ],
    [
      "x402",
      "https://x402-tools.vercel.app/api/polymarket/historical"
    ],
    [
      "x402",
      "https://x402-tools.vercel.app/api/polymarket/trending"
    ]
  ],
  "name": "x402-tools.vercel.app",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "x402-tools.vercel.app",
    "endpoints": [
      {
        "description": "Search for upcoming concerts. Supports city, date range, genre, and artist filtering.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "US",
            "group": "query",
            "name": "countryCode",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0",
            "group": "query",
            "name": "page",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "6",
          "l30DaysUniquePayers": "5"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://x402-tools.vercel.app/api/concerts"
      },
      {
        "description": "Get a daily horoscope for any zodiac sign. Optionally request a specific date.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "today",
            "group": "query",
            "name": "date",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "aries",
            "group": "query",
            "name": "sign",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [],
        "url": "https://x402-tools.vercel.app/api/horoscope"
      },
      {
        "description": "Get resolved/historical prediction markets from Polymarket. Filter by date range, slug, or category.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "5",
            "group": "query",
            "name": "limit",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0",
            "group": "query",
            "name": "offset",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [],
        "url": "https://x402-tools.vercel.app/api/polymarket/historical"
      },
      {
        "description": "Get the top trending prediction markets on Polymarket, sorted by 24h volume. Returns up to 5 markets by default.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "5",
            "group": "query",
            "name": "limit",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0",
            "group": "query",
            "name": "offset",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://x402-tools.vercel.app/api/polymarket/trending"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "x402-tools-vercel-app",
    "integrationType": "",
    "isNew": false,
    "name": "x402-tools.vercel.app",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "x402-tools.vercel.app",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"656f2349c4bd5981a897fe18a2bb1fcdc54b6e9087a9f3d64b00f890c4e87735","id":4597,"kind":"listing","method":"baseline/1","observed_us":1793025278240086,"prev":null,"subject":"agentic_market:x402-tools-vercel-app","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON