Evidence row 3199

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://outcomescout.vercel.app/api/v1/news-to-markets"
    ]
  ],
  "name": "outcomescout.vercel.app",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "outcomescout.vercel.app",
    "endpoints": [
      {
        "description": "Turn a news headline into the matching Polymarket prediction markets to trade. One call returns the top markets ranked by relevance, each with live odds/implied probability, 24h drift, spread, on-book liquidity, volume, resolution date, and a ready bet link. Use when a trading agent reacts to breaking news and needs the tradeable market instantly. $0.01 USDC on Base.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Trump pushes Russia and Ukraine toward a ceasefire",
            "group": "body",
            "name": "headline",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "6",
          "l30DaysUniquePayers": "6"
        },
        "serviceName": "OutcomeScout",
        "tags": [
          "prediction-markets",
          "polymarket",
          "news-to-markets",
          "news-trading",
          "event-contracts"
        ],
        "url": "https://outcomescout.vercel.app/api/v1/news-to-markets"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "outcomescout-vercel-app",
    "integrationType": "",
    "isNew": false,
    "name": "outcomescout.vercel.app",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "outcomescout.vercel.app",
    "providerUrl": "",
    "serviceName": "OutcomeScout",
    "tags": [
      "prediction-markets",
      "polymarket",
      "news-to-markets",
      "news-trading",
      "event-contracts"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"9689ea99cdb231342a48fcde3c61820b27a4cd6049c0d55b55e14266221cd106","id":3199,"kind":"listing","method":"baseline/1","observed_us":1793025271355081,"prev":null,"subject":"agentic_market:outcomescout-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).

1. 0x4454871d39ad651845e3849aa3984016138119ecc08e71051a2202e2339e2991
2. 0x1c8fac1c9e301f5417535a0dcb9fe781b808c5757d81c438c1870e3c3168048f
3. 0x2b19e69660bd23585ce3067b01e74c3897d8e194ceddff39beefbb97d45cffbf
4. 0x96f8be8b72e107c751aa4b075b4f12aec2c5c0f777166c45e3960b6f3e1d37d6
5. 0x0fe249dc3118a7e4e708968ecefd921ae2e8564bba4618274c45e341591a3930
6. 0x794655ded1ad298e4114e279b8943a8e3487555cf1733af7f4323c97728129be
7. 0xf6af8d92008f9641bdb39d9800b0298840f82512751501eb848444443b03b0cb
8. 0x6f5b83a15d1123bc7507082cee7e9123d1569e9a0d03eddccfe73a78c3b2a89b
9. 0x976630b1189e6cd66fa7bed3075315f618ec08e36f127a7694c1ea9c4a0083de
10. 0xde181bf1fcb403c809d49f37f3f74a5547c660ce89eda5bb438ddeecff34c900
11. 0x1204d0e3e739db3e40f40f102e1314028f064872da22239d712e0ef4cff7deed
12. 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae