Evidence row 547783

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": "2026-10-27T14:41:23.717Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T14:41:23.542Z"
    },
    "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":"bad492caaf187539e4b003bb5829656cb8a9fe40a6b297ebdfb8e464e564ca32","id":547783,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133215503330,"prev":526644,"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. 0x94675b1177a529c390ec1cf389b6c8aac054755b9d835a35d654bdb1bcc1014f
2. 0xda3551da57160ea6c2e3c4e7cb1b94cbfc7df39ece9e006c7b44808200b08c04
3. 0x9b021c6b684ad0e8899d975a1371223af3e33fbcbc8bed0b690a4b01a306ad35
4. 0x818318eb0692d9db8c7ecd71adc54792fed05b58ecb3b284952db7dd7bc08a36
5. 0x4de26d1ceb34a462fa60fd1e6bf91c987f7c119b91ddbc92b7b76a6e01f526dc
6. 0x3b66473b90a5256a57c3d50546bb3e2ae6ebb0c4d980908eb4724cc12d27881e
7. 0x1a91c212454353233ad75cf194bd49b24f6170ac3d2f08c5a53c7502d9e46e26
8. 0x3a443f53f0f7eba38064d1c2c83beaee0cb5d39b71f0a9394ea81f292c61ea06
9. 0xb87980de1ef0f83f74434126e0b7fb7bf052783371edfba3d04971763aab8fbe
10. 0x2cd6df1b424ca01feabc6fe190b5be1ed5d1b01fcb3f327ec0d4a204f14ab73e
11. 0x62768d685fdf68a23a3746fae9fbbdd9613e343468823ae92676080679a3f19f
12. 0x21b50531db6db8c65523fd5559cda8006afb66474d66107f3c29e6cd41ec3fbe
13. 0x59c5c792b40d9054ce2b84a60af97fa54f2e1a2a369a6a52dc3f45de41128e97
14. 0xa3c9c760ee424c178bab782711c2b9d3e15a80a6fde99165972cb75b306bb8b4
15. 0xb4f7223140c8a36cb87a63d77cf617086d9968dc4658f03e102571ebe06e9ed6
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4