Evidence row 752769

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://predict.memoryapi.org/x402/predict/platform_arb"
    ]
  ],
  "name": "predict.memoryapi.org/x402/predict/platform_arb",
  "owner_address": "0x24facafeb49b4e3facf0b3e69604a2f4640c9bf2",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x24FAcafEB49b4e3FACF0B3e69604A2F4640c9bf2",
        "scheme": "exact"
      }
    ],
    "description": "Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.",
    "extensions": {
      "bazaar": {
        "info": {
          "description": "Cross-platform prediction market arbitrage. Fuzzy-matches events and detects mispricings.",
          "iconUrl": "https://memoryapi.org/icon.png",
          "input": {
            "method": "GET",
            "schema": {
              "properties": {},
              "required": []
            },
            "type": "http"
          },
          "output": {
            "example": {
              "arb_opportunities": 2,
              "pairs": [
                {
                  "event_topic": "event words",
                  "signal": "ARB",
                  "spread_pct": 5.2
                }
              ],
              "success": true
            }
          },
          "serviceName": "MemoryAPI Predict",
          "tags": [
            "prediction",
            "markets",
            "trading"
          ]
        },
        "schema": {
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "method"
              ]
            }
          }
        }
      }
    },
    "lastUpdated": "2026-10-28T04:36:53.472Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-28T04:36:50.968Z"
    },
    "resource": "https://predict.memoryapi.org/x402/predict/platform_arb",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Find prediction market arbitrage across Polymarket, Kalshi, and Manifold."
}

What the leaf hashes

{"body":"99bb906ca23f64c648bfcd4f47ff4d06572fd56515668c8c0ed4eb847b518ff6","id":752769,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178843076767,"prev":118696,"subject":"x402_bazaar:https://predict.memoryapi.org/x402/predict/platform_arb","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. 0x08a8af791b6e55e6ef6b280106c11c90d8838c8c21b6d0bf238d559c6e600715
2. 0x4804efd06c5bc74f911670953f93fe0af2e1205aa4e8a50d85dcf9ee6aec080c
3. 0x9d6a953e5f753aba7b7fe0caf5a4bba1612037eeefad42d37fce35c9676d555a
4. 0x2f53815a3cbba4ab521815766991a992a41f5120964dd46032404e9b2950473c
5. 0x8b4decd06ca5dbc4f574f74103ab78052f9cb626936619f62118525bb038a74f
6. 0x15cd2dc1d523c70ffd235dae4cb66dec6bd5e4bb25285cca5fda9ff8c7e0c729
7. 0x8f65b8ec8b67c530cb158c9802d562150e425e6a60e40132c177e5cd4a80a7e5
8. 0x06443a871ec35ebdf2b0474b2390dd7b23c9288f5db029630692312e3e8fbb4a
9. 0xf2fa48e5ff29cdbda8a8d99333fa4e4e06560fb9d9c324798fe64bcdc4002582
10. 0x7d315b556bed7c695f760cedd44f9cc2e78a7a7b1bf628ac19dc2820172f44c5
11. 0x5584abd14badcd73025dcce4c64aa405404c405ff91f39a427bda991a1e95b37
12. 0x825b5cba69887117963e0cfd615aa74fe5ae01aa1deb0098d6b7e04e01634ba7
13. 0x8dcd5f3419d7730712ce62dbc974d197b0e9c47ee96e0172cdc134c7a6bf73f2
14. 0xf3fd571846115a5778f2f20ec53a7e9b272de5f8737a627379966b3745ad5e29
15. 0x2d4bed6c1c0f427d29eba935cdedcc76c72935d41919903a3b217a8ffca38438
16. 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae