Evidence row 452969

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": 9,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-22T21:40:01.585Z"
    },
    "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":"c150bc87d858dfac35c2e7f17b745e22c13d80f108a991f4a4dfbeba52b9d29c","id":452969,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100582264523,"prev":127222,"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. 0xb1cbf85af87bcd5cedf9ade99e600584b7434916ccbb12dd19310aa0c3224692
2. 0x5a9ac29bc581de687563ed4501bdb30af15a88c7e61f3211390000e6bcdec613
3. 0x6b6623dcb36c35f8a60e49031abf7219ad25fc3ea9078aa23067892fe2cc0d93
4. 0x20449f9dd9e6d9f801dfffb58e77fb4ee246c18b75d5eab45435ead3c6527e7b
5. 0x21ce0a1b356172165e9792c782ec37372c452c6bed50a59999bdebb514a60500
6. 0xd0609010fbe270c53e40af4cd0b4cae86f4896d2d0211f72d7907e06eace3383
7. 0xafbce991ad3cb0ed42377f599668c150736de4680728425e61f0207614dc6b3f
8. 0x1c6716085b769e2abdfb6fc0d6d56040dfbe6b390ee63886b6417d2ee24b812e
9. 0xdf6d516c2b20b9b6d31a4ce946bdd7b4c5362f4084deac8371682a0a6288d156
10. 0x375e2b9e7d51d57cd80f1102ac234b2622613d6183cd3ee46f4328ffc28f458c
11. 0xd1a9e8a17c2c3a118d3b406bbe49f0e2c50cfd03c0e6b4125e82eb782af3a286
12. 0x2d136d228d8bf54a46835cf3532884988271b7ca1e85edf2327300bd225d178e
13. 0xf1104ea7df082465ff9df25ed29be80a0ac7c1c6b25c289b5d2e6ae5e6331952
14. 0x87cb8935612c40b569de008a9bf8218cd24a06f74a7364a1654613d972fe00ed
15. 0xec7bb68216a4deb1960acfbbd75da88f7e468b58adb9cf3ec62f2790e46508b3
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4