Evidence row 257595

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://serp402.com/api/v1/google-product"
    ]
  ],
  "name": "serp402",
  "owner_address": "0xaa1252d726567293cffe6ca495e32c6aecfdc56d",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
        "scheme": "exact"
      },
      {
        "amount": "50000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
        "scheme": "exact"
      }
    ],
    "description": "Google Product: Stores and prices, price insights, specifications, reviews, top insights, variants and more. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "offer_view": "true",
              "product_id": "4172129135583325756"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "endpoint": "google-product",
              "meta": {
                "latencyMs": 1400
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "properties": {
                    "gl": {
                      "description": "country to use for the Google Product search. It's a two-letter country code. (e.g., us for the United States, uk for United Kingdom, or fr for France).…",
                      "type": "string"
                    },
                    "hl": {
                      "description": "language to use for the Google Product search. It's a two or three-letter language code. (e.g., en for English, es for Spanish, or fr for French). Defaults to…",
                      "type": "string"
                    },
                    "offer_view": {
                      "description": "Parameter for fetching the offer view of a product_id search in a single search. It can be set to 1 or true . By default, a product_id search returns the…",
                      "type": "string"
                    },
                    "page_token": {
                      "description": "token of a specific product offer, returned as immersive_product_page_token by the Google Shopping API and as page_token by this API. It selects the exact…",
                      "type": "string"
                    },
                    "product_id": {
                      "description": "Google product to get results for. It is the product_id returned by the Google Shopping API (also visible in product_link as prds=catalogid:{product_id} ).…",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": true,
                  "description": "Google Product results as structured JSON. The shape follows the source, so fields differ between endpoints; identifiers and routing belonging to the collection layer are stripped.",
                  "properties": {
                    "attribution": {
                      "description": "Where the data comes from and what was done to it. Keep it with the results if you pass them on.",
                      "type": "object"
                    },
                    "endpoint": {
                      "description": "Which endpoint answered.",
                      "type": "string"
                    },
                    "meta": {
                      "description": "How long the call took.",
                      "type": "object"
                    },
                    "paid": {
                      "description": "The settled transaction and network.",
                      "type": "object"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
                "resourceUrl": "https://serp402.com/api/v1/google-product",
                "scheme": "exact",
                "validUntil": 1793028953,
                "version": 1
              },
              "signature": "0x8154a2f7962943a5aff22c196a0e8fe77ef4fede46b52563306e7a8d18b8fe815082beabcace5809994357cc932bd4e7c8248d86f1cba9bc73809ba6bd8ec0391b"
            },
            {
              "acceptIndex": 1,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
                "resourceUrl": "https://serp402.com/api/v1/google-product",
                "scheme": "exact",
                "validUntil": 1793028953,
                "version": 1
              },
              "signature": "0xa7e6d9a570a5829ef5a81c7dc9ade8b282a9c35f5cc49b9b1d97461d5e03600c27845edd94ffa3bded5b89c5b058d07987be1885a410f3dad3cdbda18b3d08521c"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T15:33:53.904Z",
    "quality": {
      "lastCalledAt": "2026-10-26T15:33:53.904Z"
    },
    "resource": "https://serp402.com/api/v1/google-product",
    "serviceName": "serp402",
    "tags": [
      "commerce",
      "google",
      "product",
      "x402",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Google Product: Stores and prices, price insights, specifications, reviews, top insights, variants and more. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners."
}

What the leaf hashes

{"body":"f080e961d7f9b8845df054f798a7282bb11c49aceb5b7f9a6da4fd91d669e6a5","id":257595,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793029766895644,"prev":null,"subject":"x402_bazaar:https://serp402.com/api/v1/google-product","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xc4dc07eb9e31d6f644b1ceb0953c04897372657ae050b1d8882659683fe198ce
2. 0x4c0f5439936b16a6c1674ee540c0319bd107495899f54792f439bed70a734616
3. 0xea3ad3a47810937da33633e35eabd0f455d301cb8279cba4cfdcfbbeded898bb
4. 0xe7113fe3035099c4dd13fc2ef0546263a10f21d682df3f854eb86d63fdaaf48e
5. 0x6687f90b1e573a787f4e05e994ab3db1c875e307ed6b5df525b1ff82689a2756
6. 0x0f8f3b3714b560469ec6e882b57de74b7c7fbc40ffb329ced7bbbe413989acca
7. 0x23b1f1b356bdeb9bc6d872b762ccd9510651bd76c92070847ce654ea0582eb32
8. 0x22d3b29ba2ccd8f50c09acbec4c3c1d9527bd3c9cd90bed7e6e25c7a34cdda9e
9. 0x0aaa0fc7f6b1e014f71cabe15ae65df3a64e05db353716b554b870df619811dd
10. 0xae71c3940eac3236f4c68fb44d25cc1262b73d017fd7c18fbff1248c2e850602
11. 0x463fef738ef71a01d4aa9ac1c6836fcf6802cdaa7de01bbe42397d79d35d8671
12. 0x4d1a020de7fc0aa076daeb62ebb904d51ac6c607b605eb63a7855f34d7b69f1b
13. 0x641fba1f23ec69d96721e34ace1926954d835b9614cb5eae215a069c056399b8
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae