Evidence row 751365

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://predict.memoryapi.org/x402/predict/markets"
    ],
    [
      "x402",
      "https://predict.memoryapi.org/x402/predict/mispricing"
    ],
    [
      "x402",
      "https://predict.memoryapi.org/x402/predict/platform_arb"
    ],
    [
      "x402",
      "https://predict.memoryapi.org/x402/predict/platform_arb?"
    ],
    [
      "x402",
      "https://predict.memoryapi.org/x402/predict/sports_arb"
    ]
  ],
  "name": "predict.memoryapi.org",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "predict.memoryapi.org",
    "endpoints": [
      {
        "description": "Browse Polymarket prediction markets. Filter by category (crypto, politics, sports, economics, science, entertainment, pop-culture), search by keyword, or set limit.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "20",
            "group": "query",
            "name": "limit",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "bitcoin",
            "group": "query",
            "name": "q",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "crypto",
            "group": "query",
            "name": "tag",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [],
        "url": "https://predict.memoryapi.org/x402/predict/markets"
      },
      {
        "description": "Detect prediction market outcome mispricings — find markets where real-world outcome is already determined but market price is wrong",
        "method": "GET",
        "parameters": [],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://predict.memoryapi.org/x402/predict/mispricing"
      },
      {
        "description": "Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.",
        "method": "GET",
        "parameters": [],
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "8",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://predict.memoryapi.org/x402/predict/platform_arb"
      },
      {
        "description": "Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.",
        "method": "GET",
        "parameters": [],
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://predict.memoryapi.org/x402/predict/platform_arb?"
      },
      {
        "description": "Find sports betting arbitrage opportunities from The Odds API.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "h2h",
            "group": "query",
            "name": "markets",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "us",
            "group": "query",
            "name": "regions",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "basketball_nba",
            "group": "query",
            "name": "sport",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://predict.memoryapi.org/x402/predict/sports_arb"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "predict-memoryapi-org",
    "integrationType": "",
    "isNew": false,
    "name": "predict.memoryapi.org",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.0036",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.001"
    },
    "provider": "predict.memoryapi.org",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"4b759fd5375e7bbe628b155ac839f68eb5efb950f76bdf8b594b6577fe2fb452","id":751365,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793178748597804,"prev":3366,"subject":"agentic_market:predict-memoryapi-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. 0x6837b5cd528dc1b26fbb407fc0e6523e703fe6e7ce5e3cc943e9ea56b3bce5f0
2. 0xcebbc9c6ab6639d6997e32dc069fad5c45ec9939d172fca629dc73ef60eb392d
3. 0x9a9b129ff9f67cdd4e4850bdfea7e16517d6d17c49b65b172b4852ad29fae8af
4. 0x4d97bd3b685c3f7ca2986a2710b618f5ead82bf6e7a93fa31ee46c795025122c
5. 0xc39e4344e7fb6fa80239f1a6c971d9cf8f94848834cc57fd4ad4e7e636a70ea8
6. 0xda22ae615ec05152c0d1e17ee07280705e8e5a980f2e75b94648333c402935ac
7. 0xf56612c39c4e742aacc64078c0315d7b83cb0fa229bb69d7d9d326663d5bf382
8. 0xa7312d29bdc35cf13d75c758cdb63e0ffb7286ecbf86a9ed79677450404381da
9. 0xc65cbabae483192c89cc4b42693f7a53fd1bbc97c78acfd95e7fd9ebb04482e5
10. 0x8fc01f86987b23d5cee85aa9658f213a411bb110a7d45b37f1c78b692af756d3
11. 0x5c2f568c73887cdfff6451c99a7768fc09d8d51a6d3d9f478617c596f7ff2116
12. 0x936c51422bf9379f2c8af54a2b63b4b73e4ce7a148d72b227df49214539e17c2
13. 0xc62ea618517c23fad9d7fd6ad52434f086d88cb28c9eeb4e698664b2137cd107
14. 0x9629b9515160844aacc33a6aff292bbb444ac65e0d773f2fa899885c3481fa54
15. 0xe6054de1f67b1e6f15bcf16d2b6536cf35dd9705fdf6ce59853e79784693ab5f
16. 0xa99a40fe210d675bb6ab72d4bb72ab40eb44ac345773c457fbe58e67a47b03df
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae