Evidence row 525903

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": "7",
          "l30DaysUniquePayers": "6"
        },
        "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":"52ec47c5353b110868e5999d819890d74611b1fc963925de33de5ad26afbd6f9","id":525903,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793124769855533,"prev":4597,"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 2026-10-27 (273461 rows).

1. 0x3339d335d5b2daa429fa2a0cb639919aecdf290ac3206a6b4cbd4941f606e9a2
2. 0x0622221112fe8820ba236cb5a9c1ec97da79df56b68409b39b3d9a3c416b232f
3. 0x97c382bc9d4d88afcaa31bc0c631bcd6e1b30681dd3b033f345969bb96c92f6c
4. 0xf4883fa32fc3a3593147f041a85047f9775580a3db694fcc1a50c8c502164280
5. 0xa7e17ba020120276a80c878d0d7c05c282956f33b23b3013004a2ef448424f4a
6. 0xcc89c31793f9bd82d5978b89ca969d52d4dba1bc9ccad7add1c134272b00b730
7. 0x6c8394230faf693d5618017ae1e09771942399e98fe88d6ff61d90eb116d1d35
8. 0xaa62a14076e630836d250633ebbd0396887731f3e12abfb7b7f5b3c9550b34d4
9. 0xa886c7304b781caa292aaa3e878f16dbd5f0fb974ea97990ef901d1325d1008f
10. 0xd3d883096cdd7470c18531d6293de9f98b9dba0495d9526f5561d7be24a87926
11. 0xcb89a70f40d4a54e11019bbf6ca92907e89dd0bd1af2c3499464c58d9b463f5a
12. 0x7c26e7a3f70416cc7cabc8e770eba81b50b410fc94aaae40ac450b47b34edecc
13. 0x5a83a2d5b2abb340c16172caf3ef83b831e168d2e94e4154a4ad72adcac5cad2
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4