Evidence row 547844

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://aizamon.com/x402/v1/book"
    ]
  ],
  "name": "Prediction market book",
  "owner_address": "0xb88544cf8e9e97eeb2f313e0d3528fc1e50c2887",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "amountUsdc": 0.01,
          "assetTransferMethod": "eip3009",
          "intentId": "e6f4dbac-4f66-471a-bbea-e3c28d60462f",
          "name": "USD Coin",
          "resourceUrl": "https://aizamon.com/x402/v1/book",
          "sku": "SKU_AG_BOOK_01",
          "version": "2"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xB88544cF8E9E97EEb2F313e0D3528FC1e50C2887",
        "scheme": "exact"
      }
    ],
    "description": "Get the highest 24h-volume Polymarket and Kalshi markets, each with volume, bid, and ask. Pass ?q= to keep markets that share a word, or omit q for the liquid board. $0.01 USDC. Included in the hour pass. Includes a signed Ed25519 receipt you can check with the published key.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "fed rate"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "ok": true,
              "protocol": "x402",
              "result": {
                "book": {
                  "kalshi": {
                    "count": 1,
                    "markets": [
                      {
                        "question": "example",
                        "volume24hr": 500,
                        "yesAsk": 0.43,
                        "yesBid": 0.4
                      }
                    ]
                  },
                  "polymarket": {
                    "count": 1,
                    "markets": [
                      {
                        "bestAsk": 0.42,
                        "bestBid": 0.4,
                        "question": "example",
                        "volume24hr": 1000
                      }
                    ]
                  }
                }
              },
              "sku": "SKU_AG_BOOK_01"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "q": {
                      "description": "Optional topic. Omit for the highest 24h-volume markets.",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "ok": {
                      "type": "boolean"
                    },
                    "protocol": {
                      "type": "string"
                    },
                    "result": {
                      "type": "object"
                    },
                    "sku": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T13:40:59.787Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T13:40:59.525Z"
    },
    "resource": "https://aizamon.com/x402/v1/book",
    "serviceName": "Prediction market book",
    "tags": [
      "prediction market",
      "order book",
      "polymarket",
      "x402",
      "book"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Get the highest 24h-volume Polymarket and Kalshi markets, each with volume, bid, and ask. Pass ?q= to keep markets that share a word, or omit q for the liquid board. $0.01 USDC. Included in the hour pass. Includes a signed Ed25519 receipt you can check with the published key."
}

What the leaf hashes

{"body":"63ea53bf68e240699cd4fc24005357746bc1f893671537eb0b98420beb542146","id":547844,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133216144922,"prev":null,"subject":"x402_bazaar:https://aizamon.com/x402/v1/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. 0x749d4d52669a160393f6c65145c1fa7c02834e822dd1b7ec90ed7dee6305c7b5
2. 0x985c1f0f7e60f68b497aacbba01d0e1c14791a139b93c2df0b8a90b547b7fe22
3. 0x0940a736d2eeaae9abf5592d91bc1b4515ce70425a9232e2260db4e9f17c9cb4
4. 0x73c628093070ae9a57e11d3b9607b58f63c8a3fe2b6262c5230305eea48440e3
5. 0x15a3a681ae5e5c82efc4ec6312ac668caa87286092aeec12da7bfa17819f7414
6. 0xfb03f11d5dbfee3cbdc79327fe12180eba70baa08457c53bdb6bf1f97f4e1881
7. 0xf42cc2dd2d946a6c297ebf3d212b6a58150a17574e169f0e1898c381c10f5ee7
8. 0x56beb097a71f742af4ddd45dcb0b218b1bd0fae50a6e69022bb07dabaf4c9b8b
9. 0x1e233cb2a94e858d68184f213f3ffd82ad65d52a9e1fdab172c98f505e5e89ff
10. 0x9493aba2492f75151d57e31ffc8db1954a6902dab8a752b7a4b6973dbb3cf815
11. 0xbadb694e30e3b4990c80e04bb35fb64efec74cc8e401fd0ef8cb0e7b20c88505
12. 0x58a1b7d7965722efb70d69acfb10b39e77f817864b8d4b4069d33ff29884a3bd
13. 0x4094bd5bc2ab60e4518d1ee8a13455a69d7484ea62ecdca2618d0f39d3403503
14. 0x9848c068b1371232529d2b5738fdc45b854c57da041b69ea7c9e112b14e2d9d1
15. 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4