Evidence row 547781

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": 4,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T14:41:33.301Z"
    },
    "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":"42208eb3c580b7157cfa9b4083bc047c127be9539f8780c82f0a8fc4d4ef8bdd","id":547781,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133215498135,"prev":526642,"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. 0x48f9aabbe4af1d75b273e47e983dd46e9f1f9616d4e4800c8b375a1bf83307bd
2. 0xb0624d91041f127371cc73332803422ce6a1257f68c75ef966b64b06913bc0aa
3. 0x53015b4543436c8a041fab350e0e20bf8c0b609ece9ccf3601b10624ffa78f1a
4. 0xd737ff080cf9978f081946cec29b4acdd1ecff1d0acece526c01fadc04d531c1
5. 0xdc4e082f039a54ce91f7af2b08f36bab5c94a66e69fbb3e576cd75539790615b
6. 0xff0b457e8699639ba792e0626670c6a3d0c97da7880bbf7367e16fae732c3058
7. 0x1f36fed8b7b81e0e178b55d903c0c03e5e4f640cd3122cf404663266b8493099
8. 0x4b83c109920e1d706237de9615e4603443a6c5a1152209e2ba92d96b565b84dc
9. 0x220344316e2f7cc40279c8fca97aeca347ae946eb3e3a029a025e960a2946dfe
10. 0x0aa3627463815f4cb0c5a47a0afdb6118ef00f50d0fa723bfa76c6749c325c65
11. 0x54a45a3e1f1134ba6b79df5cf2d8890a00d02b63d33f9f5954091bef7c28e130
12. 0x84a7deb20d980d7ddf0eb089162b3d962c18f6c0ca46af19476c3066a5b827f3
13. 0x836e1796750a28d286ffaa8d273d250fe348c563336bf2d30cfaf1001d95f677
14. 0x80ede9e5d428e39db26928b1d08254ff1241f1d7e091fd2e57130fbb4423162b
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4