Evidence row 279347

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://e-commerce-price-monitoring-production.up.railway.app/v1/price/check"
    ]
  ],
  "name": "Price Watcher API",
  "owner_address": "0xf7c645b7600fb6aae07fd0cf31112a7788be8f85",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xF7C645b7600Fb6Aae07Fd0Cf31112A7788BE8F85",
        "scheme": "exact"
      }
    ],
    "description": "Real-time product price lookup from a public e-commerce product URL. Use for product price checks, price monitoring, price comparison, shopping agents, ecommerce research, retail workflows, deal finding, and target-price tracking.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "threshold": 20,
              "url": "https://www.sephora.com/product/example-product"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "belowThreshold": true,
              "currency": "USD",
              "ok": true,
              "price": 18,
              "threshold": 20,
              "title": "Example Product",
              "url": "https://www.sephora.com/product/example-product"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "threshold": {
                      "description": "Optional target price. If provided, the response indicates whether the current product price is at or below this amount.",
                      "type": "number"
                    },
                    "url": {
                      "description": "Public e-commerce product page URL to inspect.",
                      "format": "uri",
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ]
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T18:56:52.691Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-17T08:19:52.72Z"
    },
    "resource": "https://e-commerce-price-monitoring-production.up.railway.app/v1/price/check",
    "serviceName": "Price Watcher API",
    "tags": [
      "product-price",
      "ecommerce",
      "shopping",
      "price-monitoring",
      "retail"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Real-time product price lookup from a public e-commerce product URL. Use for product price checks, price monitoring, price comparison, shopping agents, ecommerce research, retail workflows, deal finding, and target-price tracking."
}

What the leaf hashes

{"body":"d138e0328d4c8e3ba7a86688aa5f518e029c0abf65b2ca5215e573f8b3c654ff","id":279347,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042232477055,"prev":74369,"subject":"x402_bazaar:https://e-commerce-price-monitoring-production.up.railway.app/v1/price/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. 0x51fd293cdba640bd6f3931f3c50bfb40a112d19bdc1188811ac369b178904ac0
2. 0x13803ad1a298f2acf2e30bbceb4b26eff324dc64131cc1deea177064f4c13222
3. 0xdca67ce02038baca9c3f266df09d2bac359abdced318ed8e447155dcb44804e1
4. 0xeebf390d19bd79fea583d65dd81709f0749d7a33645d7bedc9ce4309b7f1a34a
5. 0xd5597eabcbfea9f3bd392d4cdae2fe393ad713751703f6705dc27d7271e5e8ed
6. 0x0aa8e0adc5dee7022b17f2aa7007278306e72ee734bd861565b8b92422eeeed3
7. 0xa67fce73d00215578ad7ac84d8e22bd436e5f4e77516bf5a0436b874dcdf57b3
8. 0x374d6cce7c5796cbebc25d2ecdcd76d687b06cab69ad6949bf6b3b9fbafab695
9. 0xa3dfdb53c4025622d53d5fb988577d591f092d6645e1102bbe13e36e1a01dac1
10. 0x56c4b9a8339bbeb0ffca530ff47780ea20783ddd975fbd4877c1c5fd864229b0
11. 0xa5ad1076807e948ee46c6ef88026aa55418c25a28faa967ff0fc965aa97c5a48
12. 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
13. 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae