Evidence row 1790228

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://reference-data-api.onrender.com/v1/vin"
    ]
  ],
  "name": "Reference Data API",
  "owner_address": "0x6bffcc85172372ad4e9c1ffafe97980a2c778fc7",
  "raw": {
    "accepts": [
      {
        "amount": "18000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6BfFcc85172372aD4e9c1Ffafe97980A2C778FC7",
        "scheme": "exact"
      }
    ],
    "description": "Decodes a 17-character vehicle identification number (NHTSA vPIC): make, model, year, trim, body, engine, fuel, drive, plant, and validates the check digit.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "vin": "1HGCM82633A004352"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "check_digit_valid": true,
              "decoded": {
                "make": "HONDA",
                "model": "Accord",
                "model_year": "2003",
                "trim": "EX-V6"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "model_year": {
                      "description": "Optional model year hint",
                      "type": "string"
                    },
                    "vin": {
                      "description": "17-character VIN",
                      "type": "string"
                    }
                  },
                  "required": [
                    "vin"
                  ],
                  "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": "2026-11-01T09:54:14.032Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T09:54:13.863Z"
    },
    "resource": "https://reference-data-api.onrender.com/v1/vin",
    "serviceName": "Reference Data API",
    "tags": [
      "automotive",
      "vin",
      "vehicles",
      "insurance",
      "reference"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Decodes a 17-character vehicle identification number (NHTSA vPIC): make, model, year, trim, body, engine, fuel, drive, plant, and validates the check digit."
}

What the leaf hashes

{"body":"faa561ba59aac300e5ec5b602049ddcc6edd38bbbc6353213213148637324360","id":1790228,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559932487736,"prev":null,"subject":"x402_bazaar:https://reference-data-api.onrender.com/v1/vin","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x33ee9444e974bef974b4591bc2caa770ce02772c84fc5c55598656b55490835b
2. 0x60bbe69e45031f86053a768fa9c2f780b13b1e13ecefc850f1f0251a3dcd6b73
3. 0x21ecc5ed1e599232386f381686ea04ed2dc239103405873203634904cf10745c
4. 0xe177818932dec1ec454912d5b945f68ebf79c4dc9e19ccd03463aaa9cde615ad
5. 0x3f48846627dc95f51a8d64c80df285ace75050bb729621023e63499cb4b64b9d
6. 0xa9d1225edeee3ccad8c99e04e746759a0a52fd2916ab477314e6687c1354e77f
7. 0xda89525f0e02f107d518f69ad3c38f214e43d4ff2bf397290485365410d824db
8. 0x535601f6c75b17e11460bd995a6c049180421c1f6ea7ffa5c31339653f2d72c5
9. 0xd140f36f9b773f40c9ebf6d06f5bd857d4047b3ed1b8827b205c2b181404d8e3
10. 0xb94a281e13f4695bfe7069879a2906b96324e5b03445286aecb175bc3eb453b1
11. 0xf59b1124f6537ce1acd0a3c4bbb5ee3151e8adb511b3154c3fbcdc172c56e4ba
12. 0x6609421ee0b94fce3380c620890e178e639e58d13dce4f8973e2b4563aa1e91c
13. 0xdba48e0b270dc35a114639ac6d3ae9323f73a176da0f2cc0715e5a5b8f1d8059
14. 0x770f20a6b76206ceacb50b86f521e555bd27a1f27e7156c64591601c5b119595
15. 0x80b1e578d986f759ca01ea02c7a922e757a26a65318f9844ac72c5c1d4fe339e
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90