Evidence row 409208

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentx.sale/x402/polymarket-book"
    ]
  ],
  "name": "agentx.sale/x402/polymarket-book",
  "owner_address": "0x9702ddf83ecb770f87ff6af04156be7241a3fe83",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9702dDF83ECB770f87FF6AF04156Be7241a3fe83",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "CL4gJQMCuBNLoRPdbEgwdRkyH6RLC2Eak6yombja4vD9",
        "scheme": "exact"
      }
    ],
    "description": "Polymarket order book: top-of-book bid/ask, spread and USD depth on both sides for any market",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "fed decision"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "book": [
                {
                  "bestAsk": 0.944,
                  "bestBid": 0.941,
                  "outcome": "Yes"
                }
              ],
              "question": "..."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "q": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T02:18:05.849Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T12:15:31.914Z"
    },
    "resource": "https://agentx.sale/x402/polymarket-book",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Polymarket order book: top-of-book bid/ask, spread and USD depth on both sides for any market"
}

What the leaf hashes

{"body":"e75352a228c98df8c314f236e9ed897a853f450cd2e3e1e48a201d2b19cdfd1e","id":409208,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080353710759,"prev":70663,"subject":"x402_bazaar:https://agentx.sale/x402/polymarket-book","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xddfacf3c56671aaa77d5446c0562f3ecf0889f8b9bbc53780ac2cff58e163b2e
2. 0xdf0082846c368760aa4de4809249952bb2fe2d7e5e12884a75c0e2cac72050d8
3. 0x16d2a949914a337fb131bdb79543a5da3775dcf6ec3663b992c13c2b26c20ce7
4. 0x8e21df69ef9b64be667252738475b98ea6bc88878a6ebca1ab8cd4971b19669a
5. 0x79fdb49aa3e0356b0b656560da225efe8a971bcc208ef02885194f9042a18893
6. 0x258408efc00ecd5bbca951c081365f06d77158b71d0a7b16094c8f358e49c4a0
7. 0x37b78c9d2ca7e36fd8399687562452b4974afb0cb14c6f9847d0d7b82e303028
8. 0xddc8d208f3e5ea278cc1ee1ad48377ac30272c39302218d549d94eef09b0929f
9. 0x8d147fd693b1a264c1de39ca5ca9d5efb7f61f88ddf13fc4b2c9ee3c14c22627
10. 0x1fd0055670284d6a3f8cdaf7656f43a3fe594c0ad7387a95e74de919f0b6cf19
11. 0x9dc2ea57a358812a7cfb149bfe14e9cee1ef97d2929a7697d6a48c8c06c3cd7c
12. 0x1269bf9fca7c16778dd2b72e0163a91a5a288ca31d13ad19673e0d6ecf6de8d5
13. 0x9f8e192630bb5fc72241bfdb0460be2fccc141b3afd0197fe2e478dc28ce82a9
14. 0xd59f3e577867f5105dd7f75598f16da8286185e426dfcdafb84e733fde2b2492
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4