Evidence row 1040831

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": "2026-10-28T13:18:52.092Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-28T13:18:51.747Z"
    },
    "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":"f83e86ad3fae446a80131ba8fe2b655c0fc614a67ac4d58f24127cd85a2824e7","id":1040831,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298541913010,"prev":752769,"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 2026-10-29 (242798 rows).

1. 0xb2d6780ab6d9083b2e325a4c235f60b518b54f75013938b0759e2196bfa83a7e
2. 0xab1af75205dba29e7867301d24574375beb19760c54688e81957f56b3e6f6ad5
3. 0xdfdbc8f2e9e57a3c9d7e9c77d72b6fd93e79f50b946ac9e76e5a6d3d6dcdfc25
4. 0x72a4796df3e9d7c424c016d963117d632b4ef0f8e28b142c6ccaeb8f40d8240b
5. 0x664c6a4cb72841970837e12dbf2ec60fb7f72e732ae06fdd47688b5d98762caf
6. 0x1cf0c745fe52f78394293043cd0296b4e936e7b6b479e853419ba65f8f2240fc
7. 0xa5d2d3a749cbbab33c0e9a94715ac131ce6f48d017f2d20b8daf994d2decab7e
8. 0x567d1b1806808318d723610b47f17b8ab2dc3891c023415d8e256aecc6b12907
9. 0x1f188a531041d4454695f9f42753206a043d89356b37b70022618c174221d3a6
10. 0xc67ef42aca1684d240c932e2a6d71db32f0f7bc0556323b13344091236469fb6
11. 0x6f7c3a9e94dd61468caa9749fb1331726461f561c103df548393899f2564d019
12. 0x720184cc4740a52a25a0165ee1523cffb429b68beda243fed8d454938fce0b49
13. 0xbd648578c40e9d57b13dded5303ab0e7546d05e31678dcce5c005a0949fcc24a
14. 0x585b1e0c9b8e6cc02683a3bcbd6f86329575401feac9ee51a7efd21ed87f7ed0
15. 0xaa1d19094c2ce6d011a3c40533fa7efee207719d6c482ffc47018b28e5518acc
16. 0xef5d5572aac8f06b61579b7167b369fcb479d9027d4037dc9cacff9e3a26ffd2
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1