Evidence row 298736

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 actually a deal? Compares the current price with 30/90/180-day averages and its typical 180-day range (outlier offers filtered out), and returns a verdict: buy_now, fair_price, wait or verify_offer.",
    "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": "2026-10-26T20:39:14.574Z",
    "quality": {
      "lastCalledAt": "2026-10-26T20:39:14.574Z"
    },
    "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 actually a deal? Compares the current price with 30/90/180-day averages and its typical 180-day range (outlier offers filtered out), and returns a verdict: buy_now, fair_price, wait or verify_offer."
}

What the leaf hashes

{"body":"c2f1e5cb67b44e07b24f97be3ec1e454aa9307a0d202363e01aaf5e0e10661ba","id":298736,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793052598370292,"prev":null,"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 2026-10-26 (296695 rows).

1. 0xc1d29155d403eeefb181b58b8d13cc455568739290ef109cc920b0db54e6d546
2. 0xf6b3c4bcba1d3de78d4ca739dc54c7293cec9de8cd609da72957932ffcfb318e
3. 0xea7e210b251507c5ef66d3e86727aaf0e152807789c6bb5b7e70e1018eae7caa
4. 0x2321f9c77f05adeb3fb94acfd5ba40b85d8f7ecb6d5d981356c00a39bf9b97c2
5. 0x8c40c39c9145e7fda8ea22fcaadc17fdf09da0a13637c3a16895e4fd9800880c
6. 0xb73076f8e273597d001a50a4e6220de0d50c24fcb9b418eade25cfc6d1097684
7. 0xe85e9006f410feecf1be82b4292d4d07d2bbdda84012542d716ef3c290a9906d
8. 0xaf8bd9403c226f926874aa3116ac6b8129a04774ea8b8c691732eabdc9996b8b
9. 0xb2d03cb40383e11844f7bf1442a1332cabd2c046f1ad5bb4f874e104f230601f
10. 0xca616bf13a5c5fdcd32227c93ae0cdf02d523b7d9e425f5f738ddefc7d481c99
11. 0xeab236b8d15592c4f51859e02cc12d6b7223fc6321fdb9fa89e4d5e6edc3470b
12. 0x111576180a2fecebcaf560e6b72ed8cefedaacb8c607539ece417b7465831f66
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae