Evidence row 526642

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://asin402.com/api/sell-score"
    ]
  ],
  "name": "ASIN402",
  "owner_address": "0x820bb89345d372288c77c65d70b6ca3db395c191",
  "raw": {
    "accepts": [
      {
        "amount": "100000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x820bb89345d372288C77c65d70b6CA3dB395C191",
        "scheme": "exact"
      }
    ],
    "description": "Amazon product research: opportunity score 0-100. Is this product worth selling on Amazon? Scores an ASIN 0-100 from estimated monthly sales (demand), seller competition, whether Amazon sells it, price stability (price wars), review moat and price fit, with plain-language risk flags. For FBA product research, wholesale and arbitrage sourcing. Free sample: /api/sample/sell-score",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "asin": "0735211299"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asin": "0735211299",
              "components": {
                "amazon_penalty": 0,
                "competition": 58,
                "demand": 93,
                "price_fit": 90,
                "price_stability": 86,
                "review_moat": 10
              },
              "data_as_of": "2026-10-26T18:40:00.000Z",
              "disclaimer": "Heuristic score from historical marketplace data. Not financial advice.",
              "flags": [],
              "marketplace": "us",
              "rating": "strong",
              "score": 72,
              "signals": {
                "amazon_is_seller": false,
                "avg_90d": 28.99,
                "current_price": 24.99,
                "estimated_monthly_sales": 600,
                "new_offers": 7,
                "out_of_stock_pct_90d": 4,
                "rating": 4.6,
                "review_count": 3840,
                "sales_rank": 4210
              },
              "title": "Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "asin": {
                      "description": "Amazon ASIN, 10 characters (books: ISBN-10)",
                      "type": "string"
                    },
                    "domain": {
                      "description": "Marketplace: us, uk, de, fr, jp, ca, it, es, in, mx, br. Default us",
                      "type": "string"
                    }
                  },
                  "required": [
                    "asin"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asin": {
                      "type": "string"
                    },
                    "components": {
                      "properties": {
                        "amazon_penalty": {
                          "type": "integer"
                        },
                        "competition": {
                          "type": "integer"
                        },
                        "demand": {
                          "type": "integer"
                        },
                        "price_fit": {
                          "type": "integer"
                        },
                        "price_stability": {
                          "type": "integer"
                        },
                        "review_moat": {
                          "type": "integer"
                        }
                      },
                      "type": "object"
                    },
                    "data_as_of": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "flags": {
                      "type": "array"
                    },
                    "marketplace": {
                      "type": "string"
                    },
                    "rating": {
                      "type": "string"
                    },
                    "score": {
                      "type": "integer"
                    },
                    "signals": {
                      "properties": {
                        "amazon_is_seller": {
                          "type": "boolean"
                        },
                        "avg_90d": {
                          "type": "number"
                        },
                        "current_price": {
                          "type": "number"
                        },
                        "estimated_monthly_sales": {
                          "type": "integer"
                        },
                        "new_offers": {
                          "type": "integer"
                        },
                        "out_of_stock_pct_90d": {
                          "type": "integer"
                        },
                        "rating": {
                          "type": "number"
                        },
                        "review_count": {
                          "type": "integer"
                        },
                        "sales_rank": {
                          "type": "integer"
                        }
                      },
                      "type": "object"
                    },
                    "title": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793047148/bazaar-icons/9e69a0fc0922f515.png",
    "lastUpdated": "2026-10-27T14:41:33.41Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T01:45:18.596Z"
    },
    "resource": "https://asin402.com/api/sell-score",
    "serviceName": "ASIN402",
    "tags": [
      "amazon",
      "ecommerce",
      "product-data",
      "price-history",
      "fba"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Amazon product research: opportunity score 0-100. Is this product worth selling on Amazon? Scores an ASIN 0-100 from estimated monthly sales (demand), seller competition, whether Amazon sells it, price stability (price wars), review moat and price fit, with plain-language risk flags. For FBA product research, wholesale and arbitrage sourcing. Free sample: /api/sample/sell-score"
}

What the leaf hashes

{"body":"a6a74bf5f708aeee0a05f2d9aaec78dc2e65431cf32a8affb37dc5dbc5325d98","id":526642,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124789913032,"prev":425450,"subject":"x402_bazaar:https://asin402.com/api/sell-score","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. 0xe10a2206fb96ac57c96c97488987bbad8394dd5f06169b80d701ee6a72241407
2. 0x0b70c7e4b661df26a6c615efce2569b1bf0fea8272a8b8e60daa23bcd58618c9
3. 0x4559e064d0f4e5efc2064c0a3617434066af9eac664e0c60ded6cc252f842124
4. 0x305ce70857708920aff996f58fd6feb791c8b7652e92d98f001e78f40917a4c7
5. 0x3f9324e3bf218df80369bb2162fc6d9efccf7c7cfc2679f888d0e3cbfa442f86
6. 0xf74d78cf3de41bc2d72ca6fd28d381f56a7cbe5d478713e6405d15c48c2407b3
7. 0xbfb3fbc7d067813b88f4377c75e72815813efd6b0374804648e6d9edf04a32a6
8. 0x314f63c82f464cdc2e210f58bbae04e0bb7a97d32a130cd8dad6f7c0c61cace8
9. 0x37752257948519af6fbee080c2df6c7a89ded79e9cf6aa9d7d23eef6f61f504b
10. 0x7500c5f371023b62f9e018220c253e4b21db0728dc50f6072786b4619de381be
11. 0xd0d909352f9e85f35de7c6378041c31c709c848a1c4fc17002cbf5d0b312d061
12. 0xa7bf7b9cc7b39dca708cf0cc5d77059435823b975a1b485d07bbb69188527cb0
13. 0x979156f4f0a1ab811055c0a4d2b45bfa74d4bef619c176540454ee8d15e5bebc
14. 0xf72dee7a0c7534cb19ede4959b957b00c0a8285c36ad49dd2ce1c1092bf60d93
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4