Evidence row 71522

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://bess-x402.onrender.com/v1/crypto/options"
    ]
  ],
  "name": "BTC & ETH Options Board",
  "owner_address": "0x1129a6bb9c6165ff07fdc509c107b522ca0e1871",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
        "scheme": "exact"
      },
      {
        "amount": "4000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
        "scheme": "exact"
      },
      {
        "amount": "4000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
        "scheme": "exact"
      }
    ],
    "description": "Deribit BTC or ETH options: open interest and volume of calls vs puts, put/call ratio, and per expiry the max-pain strike and at-the-money implied volatility, plus the DVOL volatility index.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "currency": "BTC",
              "expiries": 4
            },
            "type": "http"
          },
          "output": {
            "example": {
              "currency": "BTC",
              "dvol": 39.17,
              "expiries": [
                {
                  "atm_iv_pct": 35,
                  "atm_strike": 79500,
                  "call_oi": 1775.7,
                  "days": 0.7,
                  "expiry": "2026-10-25",
                  "max_pain": 81000,
                  "put_call_oi": 0.902,
                  "put_oi": 1601.4
                },
                {
                  "atm_iv_pct": 34.67,
                  "atm_strike": 79500,
                  "call_oi": 1127.4,
                  "days": 1.7,
                  "expiry": "2026-10-26",
                  "max_pain": 81500,
                  "put_call_oi": 1.014,
                  "put_oi": 1143.3
                }
              ],
              "open_interest": {
                "calls": 242164.3,
                "notional_usd": 30939522180,
                "put_call_ratio": 0.597,
                "puts": 144617.1
              },
              "source": "Deribit",
              "underlying_price": 79992.27,
              "unit": "open interest and volume in BTC",
              "volume_24h": {
                "calls": 8117.2,
                "puts": 9316.5
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "currency": {
                      "description": "BTC or ETH",
                      "type": "string"
                    },
                    "expiries": {
                      "description": "Nearest expiries to list (1-20)",
                      "type": "integer"
                    }
                  },
                  "required": [],
                  "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": "2026-10-24T23:30:40.351Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T23:30:40.124Z"
    },
    "resource": "https://bess-x402.onrender.com/v1/crypto/options",
    "serviceName": "BTC & ETH Options Board",
    "tags": [
      "crypto",
      "options",
      "implied-volatility",
      "max-pain",
      "deribit"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Deribit BTC or ETH options: open interest and volume of calls vs puts, put/call ratio, and per expiry the max-pain strike and at-the-money implied volatility, plus the DVOL volatility index."
}

What the leaf hashes

{"body":"3ae416f15efb960e2f1daec97b4f371cba0455e0099268a38a29300209afc83d","id":71522,"kind":"listing","method":"baseline/1","observed_us":1793025482870399,"prev":null,"subject":"x402_bazaar:https://bess-x402.onrender.com/v1/crypto/options","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. 0x0afb525b147dd14ef4260027a9cc0e1d7abdbd64cea94f78a26aa65c1a5154fa
2. 0x29d97fb3d09cacdedc67ed8ed8d78dee7e92f755ebde88dcdc0690f981e59636
3. 0xdb51324c06e3bda59ce4ec785de25510ebc050f99309b73b4617e50a2a17ba39
4. 0x20bf8839e183278655afd86785f271927bad5d46507aa74fe246ac49bc28b027
5. 0x21d354a75ffb9ffa305bfb52698c9c65535f1c631e4171a4c2effdc8194892f9
6. 0x129d198202dea73a7eae68f58135698e6ca91aa955cf5c720fb11c4c17fb713b
7. 0x5cd8d7ed4d35f5859f4115a9d942f38fbeaad4f80421c71c9b98b0157e6fd872
8. 0x368a62a1436540f9820d41961b67aa48cc4fc2c2876fab7e351e2cc59825202c
9. 0x77498903b431dc881134c9913a2221e7c930b2254600caebd182966a29d09a15
10. 0x96dc6bd64fe78dd85e63b2a795828d2feea188bc55943b4d6ab1449dca715971
11. 0xb590404cb9438c769f672be0f0089b46b380374a2b3728911a35efd8d94b6a83
12. 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae