Evidence row 72829

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://crypto-market-data.zafermemon87.workers.dev/mcp"
    ]
  ],
  "name": "crypto-market-data.zafermemon87.workers.dev/mcp",
  "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. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "description": "Funding rate per 8 hours, futures premium, open interest with 1-hour and 24-hour change, and long/short account ratio per coin. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged.",
            "example": {
              "tokens": "BTC,ETH"
            },
            "inputSchema": {
              "properties": {
                "tokens": {
                  "description": "Comma-separated tickers, e.g. BTC,ETH,SOL (up to 50). Empty means all top 50.",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "toolName": "derivatives",
            "transport": "streamable-http",
            "type": "mcp"
          },
          "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": {
                "description": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                },
                "inputSchema": {
                  "type": "object"
                },
                "toolName": {
                  "type": "string"
                },
                "transport": {
                  "enum": [
                    "streamable-http"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "mcp",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "toolName",
                "inputSchema"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T04:11:44.909Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-24T04:11:44.294Z"
    },
    "resource": "https://crypto-market-data.zafermemon87.workers.dev/mcp#derivatives#derivatives",
    "type": "mcp",
    "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. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged."
}

What the leaf hashes

{"body":"ca545765e8afe5b6e1e6235f130af598ec74388aee780b25c714cfe9b260b253","id":72829,"kind":"listing","method":"baseline/1","observed_us":1793025486524427,"prev":null,"subject":"x402_bazaar:https://crypto-market-data.zafermemon87.workers.dev/mcp#derivatives#derivatives","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xb7e0cb0ccd059e226ce04b767e9d94704a5efba8d9de47040f9f422d365c71f0
2. 0xe147b183f6cff7fecd16057f88f787e8ea326479dd06f349ebc593e32824c636
3. 0x0e7e23e3519bc3a386b533d4d8bd25f16ddc86fba24ddf143ecc29c9ded854a7
4. 0x4ef153880037ea66a5af1622389ace8e4f04c0719e3e7be2d08af965b2c60c73
5. 0x362df272724bc32002ccd024c56d3bc9048275704d9f96df82fbc8154018f123
6. 0x790b35952fed99fab51911868a72c1f37f0ed4d8dd4c3005790e4f0183b179ce
7. 0x4ffd7b5dec29019886a3f7b0488d27423b2a86eef5791388a00e20d1246d6b5c
8. 0x424d5a112a5401fe19c6c9731ebe67cc9e1d3383a661f60e9e3eecb4326dcdd1
9. 0xf6a23fe3ecd50aecc0c5826826e0a89f09e467535ac3a8650edb2c6e7fbc2de0
10. 0xa4be442ac364076ac81def5d874f026f701ed9c8fce453af09052efe34f0c7ee
11. 0x930671b38b693880d085315beda88a1c227f3639e9a0e0be6b0665bb173a65db
12. 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
13. 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae