Evidence row 278398

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://polymarket.use.x402atlas.com/events"
    ],
    [
      "x402",
      "https://polymarket.use.x402atlas.com/search"
    ]
  ],
  "name": "polymarket.use.x402atlas.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:137",
      "eip155:42161",
      "eip155:8453",
      "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
    ],
    "category": "",
    "description": "",
    "domain": "polymarket.use.x402atlas.com",
    "endpoints": [
      {
        "description": "Prediction market events by topic — page through open or closed Polymarket events under one tag such as politics, crypto, economy, geopolitics or ai, each with status, dates, volume, liquidity and markets with current YES prices. Use to survey what a prediction market is pricing on a subject.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 10,
            "group": "query",
            "name": "limit",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "geopolitics",
            "group": "query",
            "name": "tag",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Polymarket Events",
        "tags": [
          "prediction-markets",
          "polymarket",
          "events-by-topic",
          "forecasting",
          "odds"
        ],
        "url": "https://polymarket.use.x402atlas.com/events"
      },
      {
        "description": "Prediction market search — find Polymarket events by free text and get each event's status, dates, volume, liquidity, topic tags and its markets with current YES prices. Use to locate a market on an election, Fed decision, crypto price, geopolitical or AI question before pulling odds, history or the order book.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "fed rate cut",
            "group": "query",
            "name": "query",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "active",
            "group": "query",
            "name": "status",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Polymarket Search",
        "tags": [
          "prediction-markets",
          "polymarket",
          "event-search",
          "forecasting",
          "research"
        ],
        "url": "https://polymarket.use.x402atlas.com/search"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "polymarket-use-x402atlas-com",
    "integrationType": "",
    "isNew": false,
    "name": "polymarket.use.x402atlas.com",
    "networks": [
      "Base",
      "eip155:137",
      "eip155:42161",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "polymarket.use.x402atlas.com",
    "providerUrl": "",
    "serviceName": "Polymarket",
    "tags": [
      "prediction-markets",
      "polymarket",
      "events-by-topic",
      "forecasting",
      "odds",
      "event-search",
      "research"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"4c23544980f879cf2674f9cc7639f928a1d43e5b6e68c0fc5de3a55ad6ee2597","id":278398,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793042066705527,"prev":265545,"subject":"agentic_market:polymarket-use-x402atlas-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. 0xe48f40dab7adea137a2894cc386b749a043c1d92617233077e9bd1cc5067fc8b
2. 0x3b5d65fe3bebaf3abbd30071576c1a06e13c084c8a0888121ffc09c6e5bea45b
3. 0x27b4241a2f2c58b7ed077d2bbfb6ca26335d697f85c5c150fb8e2320edab4d05
4. 0xc257a002e6b988b8cb0fd02e9dfdd30fd0e139d4b92e360f9fd56c21c826799d
5. 0xd8d6455e801c1190547bec5cb46e19913204f3f1067a47e25b9312c07e40f4fb
6. 0x1e61c95967f5b8ff3fa359f029510eda5bbe4f2f4885f632489cd9a32cb2ae4f
7. 0x5943933096b8b1be39f9b30efea25b3f2477311120b0455660ae72be748544d7
8. 0x6ddfb1d476b94ebefbfc37646f517f75f17b1a683a0ec02747d0d07c7d00718a
9. 0xfad341df9f0650e5cda8e3dfaac4ac724c361673dc56b69456c2ae2d27c06c26
10. 0x86c56520a247c0dd1499f40b00669d0f980768d7f2c1c990aed4a43e7b31c44a
11. 0x162e0da99198c9cdc9c43bf4626e85f4a7092fdb31ea15c7126e1f98b20eaa56
12. 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae