Evidence row 527702

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://zaref.dev/v1/fuel-prices"
    ]
  ],
  "name": "zaref.dev/v1/fuel-prices",
  "owner_address": "0x6382e6929a20b7eb02bdacfb5368362984b24c15",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6382E6929A20B7Eb02BdACfb5368362984B24C15",
        "scheme": "exact"
      }
    ],
    "description": "South African Fuel prices (Current SA retail/wholesale fuel prices: petrol 93/95 (inland & coastal), diesel 50ppm, illuminating paraffin. Rand per litre.) Clean cited JSON with official source URL, effective date and freshness flag.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "data": "current values with citations",
              "effective_date": "2026-10-07",
              "series": "fuel-prices",
              "source_url": "https://www.dmpr.gov.za/Services/Petroleum-Resources/Fuel-Prices",
              "stale": false
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "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": "2026-10-27T09:57:26.116Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-27T09:57:25.233Z"
    },
    "resource": "https://zaref.dev/v1/fuel-prices",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "South African Fuel prices (Current SA retail/wholesale fuel prices: petrol 93/95 (inland & coastal), diesel 50ppm, illuminating paraffin. Rand per litre.) Clean cited JSON with official source URL, effective date and freshness flag."
}

What the leaf hashes

{"body":"c2404dc049237eb0ae41e31313d3e82a3f092ac31b767e556b54e37c35046f47","id":527702,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124850418551,"prev":452969,"subject":"x402_bazaar:https://zaref.dev/v1/fuel-prices","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. 0x6c83ce3ef9d516f67eca773db8910002157e89e4fb3aec55b26f9c3201c885ba
2. 0x2b6f3b5aa0f8456469c558feed5dbf9bb0d2a8f6bb2bd83753f460ac3f8bea7a
3. 0x2611f210ba245f2a980f12a7af1590a7cf80a9966e4d2959400c4e8308376e69
4. 0xfdd6ae8057a055fe6a75d87ab40e0badd18cae8843aa0df4139fdf860d264af7
5. 0x96124837da46f0d695220b431c63d32160a9ea871a301eac5613e0db9f1e321a
6. 0xa8fcaaed3d622552ed403c54848710fe6b47cb648abd8cc226bcf71b926663a9
7. 0x43cfdf160c2d97f35734ceabbc2900f76dfda32750fbfbc143fc2a633352081e
8. 0x07d36ddb57f4c785b25ea0cc8db5e5057486af67653e00ef47c1c1b07591ad3d
9. 0xf195caa1c06cd51add2caeefaae2df0cc47ce710bde4a50af71afc8173207705
10. 0x258502475ec302400b17279a317a3792e9fdb11c9001e39ad66d4de02c01a553
11. 0x6738484c4b0aa7fb26d54986679f59235c86aa66784f642b6275a0cbd7593ba2
12. 0xc78608c08428e27bbac3251f568868a865e1e442ea6f182a8fd2342173a5acaf
13. 0xa7e162a9119a39c37b96b3483510d3fd108f25676fe3a9584241629612b01526
14. 0xb2ae53d841a55a805fb4078b1a7d44e08a81aba4be3690bac3a5b4c366bf39da
15. 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4