Evidence row 526988

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://crypto-market-data.zafermemon87.workers.dev/v1/derivatives"
    ]
  ],
  "name": "Crypto Market Data",
  "owner_address": "0xa41015022322640f03a895bc439da80ddfd73954",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa41015022322640f03a895bc439da80ddfd73954",
        "scheme": "exact"
      }
    ],
    "description": "Funding rate per 8 hours, futures premium, open interest with 1-hour and 24-hour change, and long/short account ratio per coin.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "tokens": "BTC,ETH"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-23T20:03:00+05:30",
              "charged": true,
              "data_age_s": 60,
              "engine": "data-1.0",
              "note": "Public market data, refreshed every minute. Not financial advice.",
              "plain": "2 coins. Highest funding BTC +0.0093%, lowest ETH +0.0029% per 8 hours.",
              "price_usd": null,
              "rows": [
                {
                  "funding_8h_pct": 0.0093,
                  "futures_premium_pct": -0.0377,
                  "long_short_account_ratio": 2.132,
                  "open_interest_change_1h_pct": -1.12,
                  "open_interest_change_24h_pct": -2.76,
                  "open_interest_usd": 7557774664,
                  "token": "BTC"
                },
                {
                  "funding_8h_pct": 0.0029,
                  "futures_premium_pct": -0.0432,
                  "long_short_account_ratio": 3.296,
                  "open_interest_change_1h_pct": -0.54,
                  "open_interest_change_24h_pct": -1.1,
                  "open_interest_usd": 5574031222,
                  "token": "ETH"
                }
              ],
              "snapshot_seal": "eb08dce6d854951431a0fb2732282227e1d954ec072422c9bfc5bee2f3ed695f",
              "tool": "derivatives"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "tokens": {
                      "description": "Comma-separated tickers, e.g. BTC,ETH,SOL (up to 50). Empty means all top 50.",
                      "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": "2026-10-27T10:05:17.943Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T10:05:17.261Z"
    },
    "resource": "https://crypto-market-data.zafermemon87.workers.dev/v1/derivatives",
    "serviceName": "Crypto Market Data",
    "tags": [
      "crypto",
      "market-data",
      "liquidations",
      "whales",
      "hyperliquid"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Funding rate per 8 hours, futures premium, open interest with 1-hour and 24-hour change, and long/short account ratio per coin."
}

What the leaf hashes

{"body":"1b7bf0fbd56a042b5951de1ade680c3a0dd9ffcff487e54b4d2ff899cc6ffecc","id":526988,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124793400758,"prev":452048,"subject":"x402_bazaar:https://crypto-market-data.zafermemon87.workers.dev/v1/derivatives","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. 0xdf73445fff30db4a2274e6bb57937ee3e26de2eeb008b314960f432df9f1933a
2. 0xfc94476d399517345cfeeeca26c6131abd125f485f6291bf2742919d2ef8532b
3. 0xf8f3644b7f7de24a6ee7a2382203b0c8cb5309d9b029658367df6b83ba253b6d
4. 0x9ca3ffb9406d9f7d682c13cae114fd0a763995540c13d2691c27b85660f581ec
5. 0x62b2b8dabbcb89ec5c928de3fcb129aa5f4d5a838bb44d160144a4e4633442b8
6. 0xed80def023641d97ceac4f11dd07b11b048bf125ab9d073c9829001a3ef09b20
7. 0x72f924c7e3d2c7381b6d13354ecb0560be4a5cb054eb02b30efd7bd2ae285c2f
8. 0xaa591d8be728eb4219193074932ec88df605a95ac17c4d3c69929ba3dc1cfb1d
9. 0x4b4347eac21dd00060563d1397a662a0ce8e959e22d939e2446aaea7ffa5e8cc
10. 0x08e0f1bd6bf3e4c9b47c16b0b5b0237273606939ca8743780a1980f196214057
11. 0x03709f74cb0b24c98dc70bc1ac073c88e08f993278d3f978839bc9507a8217cc
12. 0x432466fcdd2910b1cfb374f6f8307f56042f761290246a54c4573b208b574ac2
13. 0x979156f4f0a1ab811055c0a4d2b45bfa74d4bef619c176540454ee8d15e5bebc
14. 0xf72dee7a0c7534cb19ede4959b957b00c0a8285c36ad49dd2ce1c1092bf60d93
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4