Evidence row 752743

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402engine.app/api/travel/hotels"
    ]
  ],
  "name": "x402engine.app/api/travel/hotels",
  "owner_address": "0x7dd5be069f2d2ead75ec7c3423b116ff043c2629",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
        "scheme": "exact"
      },
      {
        "amount": "20000000000000000",
        "asset": "0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7",
        "extra": {
          "name": "USDm",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:4326",
        "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "Gzehfseq1k9AcHFSoV7qHmDGQx92nLMw78XXdqVWQQWa",
        "scheme": "exact"
      }
    ],
    "description": "x402engine — Search hotels via Google Hotels (SerpApi). Returns properties with prices, ratings, and amenities.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "adults": "2",
              "checkInDate": "2026-11-10",
              "checkOutDate": "2026-11-13",
              "children": "2",
              "childrenAges": "7,10",
              "currency": "USD",
              "q": "hotels in Paris"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "adults": {
                      "default": "2",
                      "description": "Number of adults",
                      "type": "string"
                    },
                    "checkInDate": {
                      "description": "Check-in date (YYYY-MM-DD); today or a future date",
                      "example": "2026-11-10",
                      "type": "string"
                    },
                    "checkOutDate": {
                      "description": "Check-out date (YYYY-MM-DD)",
                      "example": "2026-11-13",
                      "type": "string"
                    },
                    "children": {
                      "description": "Number of children",
                      "example": "2",
                      "type": "string"
                    },
                    "childrenAges": {
                      "description": "Comma-separated child ages 1–17; required when children > 0, one age per child",
                      "example": "7,10",
                      "type": "string"
                    },
                    "currency": {
                      "default": "USD",
                      "description": "Currency code (e.g. USD, EUR)",
                      "type": "string"
                    },
                    "hotelClass": {
                      "description": "Star rating (2-5)",
                      "type": "string"
                    },
                    "maxPrice": {
                      "description": "Maximum price per night",
                      "type": "string"
                    },
                    "minPrice": {
                      "description": "Minimum price per night",
                      "type": "string"
                    },
                    "q": {
                      "description": "Search query — city name or hotel name",
                      "example": "hotels in Paris",
                      "type": "string"
                    },
                    "sortBy": {
                      "description": "3=Lowest price, 8=Highest rating, 13=Most reviewed",
                      "type": "string"
                    }
                  },
                  "required": [
                    "q",
                    "checkInDate",
                    "checkOutDate"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-28T03:33:45.065Z",
    "quality": {
      "l30DaysTotalCalls": 34,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-28T03:33:44.76Z"
    },
    "resource": "https://x402engine.app/api/travel/hotels",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "x402engine — Search hotels via Google Hotels (SerpApi). Returns properties with prices, ratings, and amenities."
}

What the leaf hashes

{"body":"14d930c6011aa69a09de5ad87b8f7ffe19e49aea2cb0fb62877946af53432d4e","id":752743,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178841998121,"prev":127073,"subject":"x402_bazaar:https://x402engine.app/api/travel/hotels","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x572240e5023360c4d4381e13b5e20d3284719acef2e51a5b76688a05052199d6
2. 0xb27751fc2bbd1d644f584680b9ca08288289a7652ac2cf0b077e1025222eb7d4
3. 0x9f1dda17e1b77d0e74d3c8dbdf1ea8749eb2a97f2add083879a25bb78472bfc6
4. 0xd06cbf2a4e5c831dc7e816887727a062a145a4be31d94c5a93f68a9b76eb112b
5. 0x0a736538a8f109a89d169f3dbe68998c459525f922bd368f785764567747c716
6. 0xe8c36da701ed73e25266946e54ab0ed6c7ec975c9c88a47f5085945b0593876e
7. 0xd6375f81465469dd1c6adb11e61ec73c7643ae83a2f6c495571530f29c541a7e
8. 0xd7479a4eee609d1901d52e2b44508a8fbb00532be386821dfd014d562f72d4f2
9. 0x699b96effb3f8671f03a192fbb13d21d633d6b96bcde850b417e3deab11b8daa
10. 0x684caad38a92baf84e075b4e450b385e8cd88dde7834fb778fca1b8cf4966e7c
11. 0xb439aaec257498778a541f87dad54cbb3c746b8e340a45cc55fa93c180e83226
12. 0x29c0b86202f725ac4ebf7c0aa4be205eb15acbd8438a1fa98dabf039c03d8423
13. 0x747b66449975a0df45651472f6b4ec3add89070bb7da2008f4c0fd91a8f59b2c
14. 0x4a3671cf60fc2b873faa04c5863043b075336ef59080ef23af50811e899402d0
15. 0xd12637e9c035a4c3a66d0f0436dfc7bf3f13da4d17ea045b647d9e9beef1ef11
16. 0xa99a40fe210d675bb6ab72d4bb72ab40eb44ac345773c457fbe58e67a47b03df
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae