Evidence row 425452

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://asin402.com/api/deal-check"
    ]
  ],
  "name": "ASIN402",
  "owner_address": "0x820bb89345d372288c77c65d70b6ca3db395c191",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x820bb89345d372288C77c65d70b6CA3dB395C191",
        "scheme": "exact"
      }
    ],
    "description": "Is this Amazon price a good deal? Buy now or wait. Price check against history for any ASIN: compares today's price with its 30/90/180-day averages and typical 180-day range (fake-low outlier offers filtered out) and returns a verdict (buy_now, fair_price, wait or verify_offer) with a one-line reason. Use before buying or recommending a product. Amazon price tracker / price drop check. 11 marketplaces. Free sample: /api/sample/deal-check",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "asin": "0735211299"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asin": "0735211299",
              "avg_180d": 29.5,
              "avg_30d": 26.5,
              "avg_90d": 28.99,
              "currency": "USD",
              "current_price": 24.99,
              "data_as_of": "2026-10-26T18:40:00.000Z",
              "marketplace": "us",
              "median_180d": 29.5,
              "percent_vs_90d_avg": -13.8,
              "price_basis": "buy_box",
              "reason": "Price is at or near the low end of its usual range.",
              "title": "Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones",
              "typical_high_180d": 29.5,
              "typical_low_180d": 25.5,
              "verdict": "buy_now"
            },
            "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"
                    },
                    "avg_180d": {
                      "type": "number"
                    },
                    "avg_30d": {
                      "type": "number"
                    },
                    "avg_90d": {
                      "type": "number"
                    },
                    "currency": {
                      "type": "string"
                    },
                    "current_price": {
                      "type": "number"
                    },
                    "data_as_of": {
                      "type": "string"
                    },
                    "marketplace": {
                      "type": "string"
                    },
                    "median_180d": {
                      "type": "number"
                    },
                    "percent_vs_90d_avg": {
                      "type": "number"
                    },
                    "price_basis": {
                      "type": "string"
                    },
                    "reason": {
                      "type": "string"
                    },
                    "title": {
                      "type": "string"
                    },
                    "typical_high_180d": {
                      "type": "number"
                    },
                    "typical_low_180d": {
                      "type": "number"
                    },
                    "verdict": {
                      "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": "2026-10-27T01:45:08.532Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T01:45:08.372Z"
    },
    "resource": "https://asin402.com/api/deal-check",
    "serviceName": "ASIN402",
    "tags": [
      "amazon",
      "ecommerce",
      "product-data",
      "price-history",
      "fba"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Is this Amazon price a good deal? Buy now or wait. Price check against history for any ASIN: compares today's price with its 30/90/180-day averages and typical 180-day range (fake-low outlier offers filtered out) and returns a verdict (buy_now, fair_price, wait or verify_offer) with a one-line reason. Use before buying or recommending a product. Amazon price tracker / price drop check. 11 marketplaces. Free sample: /api/sample/deal-check"
}

What the leaf hashes

{"body":"4c0a7bca8f4cf4f93f48e3850c0fbfa8f802c11e78d07bf003455e450d2cc1dc","id":425452,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086110377764,"prev":407630,"subject":"x402_bazaar:https://asin402.com/api/deal-check","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. 0xbd0050dc8c00f6b85a5cf60a983df5438f19388bb2d06966fb1e3745d547ddf2
2. 0xc24d103eb4f081bd513909278467e72a24e6017286a1a6a3a9626aefe5d3be4b
3. 0x626e787980b1f56bc9e74c6218be1b00db7a317ec199cf1fbbad614d289d5d3a
4. 0xfd7c38d84f2c2ac52115392c031c350bd354c8a1456c8f8454a1a977a3aedc1d
5. 0x758324440b7b7886fba7ff574672196a5b56c1dfe1981773862cbb12e4aa67f7
6. 0x4928a62be0b863a1d3d132efbc638fe854338790489bd032688d7f14ae2dfd0d
7. 0xa955142acd42239d86105cd8c0f2c467dc971d69045ee6d28f74eb087404ee2d
8. 0x560dfa4a1075e57322fe88e45461001335ce2bdf81dccb5f5c2bed1667131e25
9. 0x877832e3c0d8ab8832d08dfd4e39179cb23d6a0eeae6f66c96b03a8935bb8fd4
10. 0x65c0853922f2318fa19d697e12871272de31f3d8a71fe99f061da6631d4a994f
11. 0x0b996890ad9f7a45291a56249c03de765fb331d173fb8d8e01ab2ec842ac8316
12. 0x92804c1cd4f73221d350049c90c3d17d86ce815c332f3b67c5894d2919efebf2
13. 0xb4800af1fe2ae822adba5c087faf1dc0bc2d7c9de2e3e602a2b65aefc1d53c94
14. 0xa453d1738637a5c663802d07ce095aa340c80d53a4288ae277a72e265868ce4e
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4