Evidence row 1827

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/verify/offer"
    ]
  ],
  "name": "offercheck",
  "owner_address": "0xb9721fdd2ec85f7f604f5bbca2292d7c4ff6b62c",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xB9721FDD2EC85F7f604F5BBcA2292d7C4ff6B62c",
        "scheme": "exact"
      }
    ],
    "description": "Verify the live price and availability of a product at a URL before you buy or quote it. Fetches the page now, extracts price/currency/availability from JSON-LD, Shopify JSON, OpenGraph or microdata, and returns evidence (method, snippet, content hash, fetch time) plus a confidence score. $0.01 per check.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "url": "https://shop.example.com/products/widget"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "confidence": 0.9,
              "evidence": {
                "bytes": 84210,
                "content_sha256": "…",
                "content_type": "text/html; charset=utf-8",
                "fetched_at": "2026-09-25T20:00:00.000Z",
                "method": "json-ld",
                "snippet": "{\"@type\":\"Product\",\"offers\":{\"price\":\"19.99\",\"priceCurrency\":\"USD\",\"availability\":\"https://schema.org/InStock\"}}"
              },
              "final_url": "https://shop.example.com/products/widget",
              "http_status": 200,
              "ms": 812,
              "offer": {
                "availability": "in_stock",
                "currency": "USD",
                "price": 19.99
              },
              "product": {
                "brand": "Example",
                "name": "Example Widget",
                "sku": "W-100"
              },
              "url": "https://shop.example.com/products/widget",
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "url": {
                      "description": "Public product page URL (http/https)",
                      "format": "uri",
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-21T04:33:26.949Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-21T04:33:26.724Z"
    },
    "resource": "https://offercheck.offercheck.workers.dev/v1/verify/offer",
    "serviceName": "offercheck",
    "tags": [
      "verification",
      "ecommerce",
      "price",
      "availability",
      "url"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Verify the live price and availability of a product at a URL before you buy or quote it. Fetches the page now, extracts price/currency/availability from JSON-LD, Shopify JSON, OpenGraph or microdata, and returns evidence (method, snippet, content hash, fetch time) plus a confidence score. $0.01 per check."
}

What the leaf hashes

{"body":"1d58de2c53303f352f71ebec87fd0a0da27f790735fcbb4413050bce9b642d9a","id":1827,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025259349794,"prev":null,"subject":"x402_bazaar:https://offercheck.offercheck.workers.dev/v1/verify/offer","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. 0x1d83be6ed957a4c9e34213b403d657d17b4d906515d23315ff9a6ac2f8cb3ecd
2. 0xae3ca8a2ac0f85042e40317618ec690d824a7621b14d4e3828c3d2c540744d1b
3. 0x81669faa5f5c15ea087a1ae351608aaf9725ffa0908cec764b0275391b06504d
4. 0x3e57dda19bb474619ecb51a7396a05db88dc9c7ee1a8fed6660310bfd1f34ecd
5. 0x9a2c582bd86e5939afa87e8b48acf23d9ab5be7fe62fef321ecd32263443ae31
6. 0x394f89f6a93ee23f67bef82669d8487166f179569fdb6c23a7376bfd3d4f7819
7. 0xe29a0add236429044c8f36b9ecc054104891b954c37cca213720f04e663e79d1
8. 0x1418aafa61483c8a77e6e9c28289d31987d78ff414b8ac93ecc4ccb8610d0c27
9. 0x401650e78060172b587426fbc195d26513e5d12a9f5e8cfdc013fb5a70140421
10. 0x667c9edc7131bd388a1c1a039f7fddf0a4fbc13b4f1e7297601127a46cdc7292
11. 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
12. 0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
13. 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae