Evidence row 279169

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://serp402.com/api/v1/walmart-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": "Walmart Product: Product title, description, prices, manufacturer, links 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": {
              "product_id": "138762768"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "endpoint": "walmart-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": {
                    "device": {
                      "description": "device to use to get the results. It can be set to desktop (default) to use a regular browser, tablet to use a tablet browser (currently using iPads), or…",
                      "type": "string"
                    },
                    "product_id": {
                      "description": "product to get results for. Normally found from shopping results for supported products (e.g., https://www.walmart.com/ip/{product_id} ). You can pass…",
                      "type": "string"
                    },
                    "store_id": {
                      "description": "Store ID to filter the products by the specific store only. Head to the Walmart Stores Locations for a full list of supported stores. It's possible for the…",
                      "type": "string"
                    }
                  },
                  "required": [
                    "product_id"
                  ],
                  "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": "Walmart 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/walmart-product",
                "scheme": "exact",
                "validUntil": 1793029126,
                "version": 1
              },
              "signature": "0xcf98f5a6c5318a91287b35ae0429205564605f7675ae8d103c530e0fa7c1c55e45d0f6d9d5a610c8a5f0bdc30362f5f4fdc60dde4311a2c5be1f9c6eeb61c5061b"
            },
            {
              "acceptIndex": 1,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
                "resourceUrl": "https://serp402.com/api/v1/walmart-product",
                "scheme": "exact",
                "validUntil": 1793029126,
                "version": 1
              },
              "signature": "0x906d20928f8283f7c4f808f31c10494b0be94cd4cf75affbe7c163d89a1ec1520bf59d8efa36da40c0a9400f391323469c990944e565e10c03620565cef60a681c"
            }
          ]
        },
        "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": "2026-10-26T15:36:46.369Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T15:36:46.251Z"
    },
    "resource": "https://serp402.com/api/v1/walmart-product",
    "serviceName": "serp402",
    "tags": [
      "commerce",
      "walmart",
      "product",
      "x402",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Walmart Product: Product title, description, prices, manufacturer, links 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":"d4686575da563a19d11437c01bdf2709eed7668606f161a3931daa922cb7c624","id":279169,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042181861238,"prev":257553,"subject":"x402_bazaar:https://serp402.com/api/v1/walmart-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. 0x4ebe09481d85867b4c511fd104e82a6ca54d9dd5d345a23d7e1a8958d47a42fa
2. 0x1fa48dcab33de3cf9d77baa5c807c062e2426c5f0e95ceed803890e8e29c29eb
3. 0xbc1af04405da8753eec2a502f64f55a7472a99f57f34d0925a82228f3230e280
4. 0xa506d7cfbdfd5ed1a707ee77810ae949b9d7f208943600d1de78876eebb99204
5. 0x7fbe905220639467bf627df0382b102d9e934cb537d5f886fa7c227d4af26d9e
6. 0x69bd71c97d9c816fa500a4f250368e6c85b53dc2e7afc6d463357f586cb8454d
7. 0x66d0e30d2c2a19bcad4c34e6827e954004d5ef744f568d9b62832d0d5316baa5
8. 0x5c3ca9a2d4a67d555f96a4f271664f7c400894f1575b2aa793ff7691d1f01a8f
9. 0x7463bd78363bf2cd2c5fdb24b12be1195912ca04e7b8d9bc519edcfad0a32444
10. 0x3c2a519207c7fbe7025a4c98d41e42ecc9446b3fb0b1dbff629a91c8c74e0781
11. 0x20ba86fd56bddd46212d02e792b969e90a1167c4fb9ba4a54cb7da5cf7da1629
12. 0xaf14a84837a57dc5a0cb0ebd158daaad24c19301b9257d9e97c322a7d8c54bc0
13. 0xf7d2cf278e5d2768b8bdb70730c378877cf7165d8efcbec8bcd3282fdc50d177
14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae