Evidence row 452348

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://asin402.com/api/fba-profit"
    ]
  ],
  "name": "ASIN402",
  "owner_address": "0x820bb89345d372288c77c65d70b6ca3db395c191",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x820bb89345d372288C77c65d70b6CA3dB395C191",
        "scheme": "exact"
      }
    ],
    "description": "Amazon FBA profit calculator by ASIN. Should I sell this on Amazon FBA? Give an ASIN and your unit cost: returns referral fee, FBA fulfillment fee, net profit, margin, ROI, break-even cost and the maximum landed cost for a 30% ROI (the number to negotiate with suppliers). Uses the live buy box price. For Amazon sellers, wholesale and online arbitrage. Free sample: /api/sample/fba-profit",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "asin": "0735211299",
              "cost": 4.5,
              "shipping": 0.8
            },
            "type": "http"
          },
          "output": {
            "example": {
              "amazon_is_seller": false,
              "asin": "0735211299",
              "break_even_landed_cost": 16.12,
              "currency": "USD",
              "data_as_of": "2026-10-26T18:40:00.000Z",
              "fba_fee_source": "marketplace_data",
              "fba_fulfillment_fee": 5.12,
              "landed_cost": 5.3,
              "margin_pct": 43.3,
              "marketplace": "us",
              "max_landed_cost_for_30pct_roi": 12.4,
              "net_profit": 10.82,
              "note": "Excludes storage fees, inbound placement fees, returns and taxes.",
              "referral_fee": 3.75,
              "referral_fee_pct": 15,
              "roi_pct": 204.2,
              "sell_price": 24.99,
              "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"
                    },
                    "cost": {
                      "description": "Your unit cost of goods",
                      "type": "number"
                    },
                    "domain": {
                      "description": "Marketplace: us, uk, de, fr, jp, ca, it, es, in, mx, br. Default us",
                      "type": "string"
                    },
                    "price": {
                      "description": "Override the sell price (defaults to current buy box)",
                      "type": "number"
                    },
                    "shipping": {
                      "description": "Inbound shipping per unit",
                      "type": "number"
                    }
                  },
                  "required": [
                    "asin"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "amazon_is_seller": {
                      "type": "boolean"
                    },
                    "asin": {
                      "type": "string"
                    },
                    "break_even_landed_cost": {
                      "type": "number"
                    },
                    "currency": {
                      "type": "string"
                    },
                    "data_as_of": {
                      "type": "string"
                    },
                    "fba_fee_source": {
                      "type": "string"
                    },
                    "fba_fulfillment_fee": {
                      "type": "number"
                    },
                    "landed_cost": {
                      "type": "number"
                    },
                    "margin_pct": {
                      "type": "number"
                    },
                    "marketplace": {
                      "type": "string"
                    },
                    "max_landed_cost_for_30pct_roi": {
                      "type": "number"
                    },
                    "net_profit": {
                      "type": "number"
                    },
                    "note": {
                      "type": "string"
                    },
                    "referral_fee": {
                      "type": "number"
                    },
                    "referral_fee_pct": {
                      "type": "integer"
                    },
                    "roi_pct": {
                      "type": "number"
                    },
                    "sell_price": {
                      "type": "number"
                    },
                    "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": "2026-10-27T08:30:30.719Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T01:45:13.542Z"
    },
    "resource": "https://asin402.com/api/fba-profit",
    "serviceName": "ASIN402",
    "tags": [
      "amazon",
      "ecommerce",
      "product-data",
      "price-history",
      "fba"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Amazon FBA profit calculator by ASIN. Should I sell this on Amazon FBA? Give an ASIN and your unit cost: returns referral fee, FBA fulfillment fee, net profit, margin, ROI, break-even cost and the maximum landed cost for a 30% ROI (the number to negotiate with suppliers). Uses the live buy box price. For Amazon sellers, wholesale and online arbitrage. Free sample: /api/sample/fba-profit"
}

What the leaf hashes

{"body":"d37505be3d021208d9f32b48e476f814be8cbc7db6064742947a99ac78efc5d8","id":452348,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100520629090,"prev":425451,"subject":"x402_bazaar:https://asin402.com/api/fba-profit","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. 0x9f52e77f39a90c971bc6547afe753c36d1d6d0c251f029ea2aeed646fd353ffd
2. 0x3f552a93f168094d320a997e346145bd28b4e07c881d88e2451aec954748a7ad
3. 0x5d41e2d799383f4d6e97105591ff6a8d16299a3d724e93a2124c19ae20a07218
4. 0xfddb1d0002b9ec6b6d339c8a192e09d19260b2cc1b2b625c3591576d4110a06b
5. 0x7e558e9f25a646c563103cfd587d7a370f394ac9cc7876011d88fe04d555472c
6. 0x52efb27024f961a8f9e99fcfaa4f6fab78b3c9de4553ff66fc518a3fbce40008
7. 0xc79414773fe5a5aec7783a88fbfc0e6e1bb89ab2bc0181d375437d135de04774
8. 0x770153c7adc1f0b99dfe0193af67f0a7fa2229b2b79bf52687a6aed695700d7f
9. 0xbd3f44fa4f0a0463138dfc7f1cb1d63f23f3fc54c3b42ad9eb5d2a1289a5618b
10. 0xe9cfd0cd472cdf5a2f773d67db79839c98da33f88beb22465c719a71c68b2a2d
11. 0x70dbf5e56b082ea372d9f6f322b44de4dc06b3985cb3c1eb26e7a0dab527ff28
12. 0x121ffc8b387c54931bc53056e106d9ada0e2f7c1d32ebc819c3306406c952295
13. 0xa91c23113464e2fc1e93d41e407b7c6c254bee2eac2f7a550e2f9a1275eef26a
14. 0xb37e6165108af3c1962db6b76953aee5ee86201747a07444ad2760bf2d5dca23
15. 0xa3fff4662cd48659f5bafd0612931759a90e53a7b4209ed8f26f6594a07bb547
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4