Evidence row 547782

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": "2026-10-27T14:41:28.801Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T14:41:28.553Z"
    },
    "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":"9eb61d4acccf64369ede5e279f40807e60f900d14824d09932bf6d292c04c730","id":547782,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133215500806,"prev":526643,"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. 0x779637ea0d1c31c025ae75c55ef90c197256683a93e544d473ad8a9c230a31e3
2. 0x1534961678b4ae09a7628c54b769c3d2a7bffa93972d1a788555a47e4a089fd4
3. 0xe3b20843d8ccb71d054f682608e38ba1505c36948a808cc6d208c3c5723ebf88
4. 0xb26920eb79520205fd9180efca3319b822eba32215bc0d1f645b80a9cba25b3a
5. 0x1603dea4551e1ae7c1a2c420bb46387afca1e32906ad8c50751dac0954af5c41
6. 0xb9655cee734a9a77bd0581012bbdaba07b982d45cb2e6df41c0ba144c31126ff
7. 0x3ee1c93ae13cba5354f3285e54e2881aea8d35f8bfcea6591f805d29f3e7161f
8. 0xef8b10225c3990ec1233cf56df531b4a5d2ced8953345874768615566093cf46
9. 0xd5913625e97b662dd4236a406dd2ad2e3fc25035d0fb612f0128118fa7279a62
10. 0xdca7be968b847f07be720f9ef981d9dd268c59dc5459d336797e4bf9be51192c
11. 0x5c178a60ac8a8b1697e714e16bb750246722a6136f279e1719bdab90c149fd7b
12. 0x30b0c1fa0ae50435d58b5b7f993dde40a8bcc3f5956d7e3d31946f1a957684b4
13. 0x8f2d125f5fe55a24b5da16577766eeaa13f24a272bb4c1c016f423ae917da681
14. 0x9848c068b1371232529d2b5738fdc45b854c57da041b69ea7c9e112b14e2d9d1
15. 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4