Evidence row 1263149

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": "2026-10-30T09:10:06.213Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-30T09:10:05.922Z"
    },
    "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":"77a515844aa3d9359b96142381d615a3d29093af1f73aef65c7cad8439a309fc","id":1263149,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385618621808,"prev":1040831,"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 2026-10-30 (243099 rows).

1. 0xa0ca6bd343051366c0b72275f4cc3a9c9d531569e7ff6c1d41f0b9a8e58c211d
2. 0xb5eefbc6bc1120f52aea91f16e143f898d04a2546c55b9f84294b1824c9863cd
3. 0x81a99bc2a306e97ec8147ab5b308ca42b81c9e67a09f959f50c33f8f1507f56d
4. 0x2fb3adea3287aa386c96af841bc8de2f26a5149b7e1b3a15dcb31b34a8dc3af6
5. 0x7775ca8134d05a3774af0968bce915fd6719ff2cbace7a539c1b4d1ec6b42801
6. 0xd2b8711e4859eee3d68113ca4bab4daebc728270394309a30bcbce606649e5a0
7. 0xdc7f0f9d08f266e9914f2131847bb74b9101f4a9ad4ed45066bfbe0fd84dd2dd
8. 0x07133f48d37351bee9ce76821e7f257eb63aed7d8a2c0fc4f9bd3b64b330ed3a
9. 0xab9640e281af2f184b6f22cdff06b6826c5b32355020c5c30447f45d60d99138
10. 0xfc8fac678bd612ea6420dca351b305c33c755f5fa36910ed82c3be2fad96e683
11. 0xf05fb362384d25b993e8e7d8765bedf27158e813b9e983aa05efb5abc2a4c4f5
12. 0xe8456fde7c82095dd536981ac0646d7cddd340162ca0a0ed5c7615790b0ed9b3
13. 0xa4ef8b242e17e00395357e2457bc5040c7d94e42e7d8cb8e331ba687e9002650
14. 0x1eeab2b7eb6c0e44e79a2d3d5d5f63d9c0f269f286347cee11c002d3e7c1c75b
15. 0x11b43ed362a2fd4976e11eceb94ee4b7edbaf6823474ee1c36489f8f0a0496c4
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861