Evidence row 3767869

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": "2026-11-04T04:39:26.662Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-11-04T04:39:26.462Z"
    },
    "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":"f2655a5586fb7798182401b158274320140546b5b7d07db6c5df50237055aa6f","id":3767869,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996803704776,"prev":3066978,"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 2026-11-06 (303443 rows).

1. 0xe8b18d5fee9870847147eff5669dc86a42971797aeb040441641cbf6d4137cbd
2. 0xacf7bc2b8992b0b2d796c17215ed238666a347afc29fd552bad2da1e03d19e7b
3. 0xd0cf93612af6840ca0b765f4ecfaf8d9396aee5c35d66436bd609167425bd50b
4. 0xac357edf9b46836959344c099044530dd3f2b74646c452cae8401d57b13ebe9d
5. 0xb9356c3b70be566711d786898d7d0e3bfc6980575d0ce66c30136012f8304232
6. 0xd67f7d4861ef5090cfbf4e37053b0d53c186a44ff77a1e828ddec790c33bfd24
7. 0x075ce8db8597dce42dc4ea3894ceeb895fe28c9cf4e1f3559c333af146350dd7
8. 0xaf3c1e29d67707f0eee1e0c249064d7bf0359115d3e52d7563ca6a386affc276
9. 0xac777ce0c20aa276929a57013d776584ea6e5312d0fb7018b131904e7b198413
10. 0x85a9c5256e9875487516f16ca99e9f975d9cf5223486cfef8ecbce3f5f1c0999
11. 0x1b6618bf98a00695d1812b342c3ca0406066bb11af6da1ab603ca44786b80eea
12. 0x6d3ead1c01686862497e4b3c4a6a8715c194a05d69752a6e0dd2b83a0d69cfd4
13. 0x10a787d056c75faf84d4a1961aa117e5165112979f11715861dc7253c7facf78
14. 0x5eeb09922285017cece19983a34f7483063f36993e355561c47b20ade87bfe43
15. 0x3c1d5e613d15e0df0cd0c1b1c0e33f6806b96b933b69d2555bd92b4570955879
16. 0x04c1c4929933bae20304ac32084d4b93dcac07567f68e828ac93bbc39eb4614c
17. 0x0ab273486ad4e41bf08c741b20b2ee12e0fc87eaa429a5467c58fd3be34409b9

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1