Evidence row 453390

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://zaref.dev/v1/crypto-prices"
    ]
  ],
  "name": "zaref.dev/v1/crypto-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 Crypto ZAR prices (live): Live ZAR crypto prices from VALR's public market data: last traded, bid/ask, 24-hour high/low/volume and daily change for BTC, ETH and every other ZAR pair on the exchange. Live from VALR's public market data.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "pairs": "BTCZAR,ETHZAR"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "pairs": {
                "BTCZAR": {
                  "ask_zar": 1037133,
                  "bid_zar": 1036875,
                  "change_from_previous_percent": -0.07,
                  "last_zar": 1036756
                }
              },
              "series": "crypto-prices"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "pairs": {
                      "type": "string"
                    }
                  },
                  "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": "2026-10-27T09:56:49.01Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-10T06:56:53.58Z"
    },
    "resource": "https://zaref.dev/v1/crypto-prices",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "South African Crypto ZAR prices (live): Live ZAR crypto prices from VALR's public market data: last traded, bid/ask, 24-hour high/low/volume and daily change for BTC, ETH and every other ZAR pair on the exchange. Live from VALR's public market data."
}

What the leaf hashes

{"body":"5a69f604ee7793c85faecbb36b8a21805e5bb142048e0d29d27bf5b94cc1c540","id":453390,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100625925306,"prev":127221,"subject":"x402_bazaar:https://zaref.dev/v1/crypto-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. 0x21705a56530bc7a909dffede5677c79ed04ab2692db0cfebaa99ba4371226d53
2. 0x91ed2ad12415d1797f5c93796e542b5f939b7f49b34f80aa7418a29d91841e5a
3. 0x1b5c58939600440b8c39343092be48ed1dbc1c71a5ed62ed17aa04159d30cde0
4. 0x9af7706491be17996d644793f776498de85af50038f22b376587e5d28e74b56f
5. 0x0943c54cac5dfb19c7617d7e382aaadc4c6672f7f86c3393bc1dd9243c03189c
6. 0x2699915a5b3021ce636f99c72f1015d3bf433abc9482c957b43f5fd4c81d948a
7. 0x2f711bfcfa602ea45eaa3dfd5d14005a8d42a1ebbaae8cc25e3a82952fa5082b
8. 0x9a7e572663a48604b347cbf214e8821613d975c196fd43b3e0ab41c8fe5ed451
9. 0x723a9529fc202efaf7548b992d1b7bbcad24faa4eee950fb936433093bb9b359
10. 0xa86c9ac985b8bfa5e2836a1ff6e278bf30dd6e16ec849b093e557090df2dc256
11. 0xcd076dadba0ebdb10d4f98d66c39a46dcf81479dab835b894c5c4db1d59ebe7b
12. 0x3e618f03ac19ac846329a4673ab8d8561b083fca3c7f9a5fd8bd3bbee6556c25
13. 0x20ca24353b8aca3e061eedf55f49b69ae8369b88135dfdabf30039ed34db329a
14. 0xe8ee6f6ed50253c5ee2d1aa85a4b1a38ce94bca7f3b72fd1850f496152dbe285
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4