Evidence row 120468

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/options/maxpain"
    ]
  ],
  "name": "Saylor Innovations Options Max P",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:options:maxpain",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
          "memo": "saylor:options:maxpain",
          "reference": "Ajc7fKdNGG7XRL9RJy5uHErM8C453v74QDRk6EydbajQ",
          "session": "eyJhcnRpY2xlSWQiOiJvcHRpb25zOm1heHBhaW4iLCJyZWZlcmVuY2UiOiJBamM3ZktkTkdHN1hSTDlSSnk1dUhFck04QzQ1M3Y3NFFEUms2RXlkYmFqUSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMjQ1Njc3NzgxfQ.7JrOzQ4LI1q5yLgg6KJtjQni4oLn5OgzbFXB-5AxqIY"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "BTC and ETH options max pain strike for an expiry, with put/call open interest ratio",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "asset": "btc"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asset": "BTC",
              "expiry": "2026-10-03",
              "found": true,
              "max_pain_strike": 84000,
              "put_call_oi_ratio": 0.82,
              "source": "Deribit (open interest by strike)",
              "underlying_price": 83627.64
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "asset": {
                      "description": "btc | eth (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "asset"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asset": {
                      "description": "Asset the figures refer to",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "available_expiries": {
                      "description": "Option expiry dates available",
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "expiry": {
                      "description": "Option expiry date",
                      "type": "string"
                    },
                    "found": {
                      "description": "True when the lookup matched a record",
                      "type": "boolean"
                    },
                    "max_pain_strike": {
                      "description": "Max pain strike",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "note": {
                      "description": "Caveat or context for reading the result",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "put_call_oi_ratio": {
                      "description": "Open-interest ratio of puts to calls",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "strikes_considered": {
                      "description": "Strikes considered",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "total_call_oi": {
                      "description": "Total call oi",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "total_put_oi": {
                      "description": "Total put oi",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "underlying_price": {
                      "description": "Price of the underlying asset",
                      "type": [
                        "number",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "found"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-17T13:59:17.829Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-17T13:59:17.38Z"
    },
    "resource": "https://saylorinnovations.com/api/options/maxpain",
    "serviceName": "Saylor Innovations Options Max P",
    "tags": [
      "options",
      "deribit",
      "volatility",
      "maxpain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "BTC and ETH options max pain strike for an expiry, with put/call open interest ratio"
}

What the leaf hashes

{"body":"1a19ed37e6fd3e9ebe2b5923752106ac84399634c84b9cdf8e9ddc26617e48bf","id":120468,"kind":"listing","method":"baseline/1","observed_us":1793025618110605,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/options/maxpain","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. 0xdc7f2983825d968b82ef1e65b2410d157db2fc64e722e8a0a32dd3e1cbf0f8ac
2. 0x2c736673a8911c14efbd96cda940ca7c04377a3eba2f779c19a7227d173780e6
3. 0x03a85af47033546c0dbbf3068aff3832836901e64fcf7ea801f31b99b06a0f4b
4. 0xfba1d99387d366a5b17c888337493abb800b11d40e5d2285340869c0fbd06636
5. 0x621770c74eb6558e7f37de286c43223104bfe5def31adc0d2570b37d18f5180c
6. 0xd264e1f717620d035d6c09b568bae9e60d030113416921b32c850320c3521fb9
7. 0xa58e34eaa08a14185b20e048155f5480a2d8b26e41443a35c8f2b2d46aa127d8
8. 0x17f2d55fdd585a5e00cdfc2c9f3eb35ab781897c012ab4a75106a8269c579621
9. 0x114b51e779a9893a9c062797f565d930adaae118acd36adedcf5aba14f417cd6
10. 0x8bebe012b01fa4f26d739f04115eebeef40f8c405ae373856c041e988f95cbc8
11. 0x24a78783fa8bfae2806b9bb0fa99cf3d1a7fa7f1795401b4b31767e8a2b2abd7
12. 0x4b7a7525bd11eaa3154ce1b1171d1b54b83370163f39203e230c520e42560c4b
13. 0xa4edde833302b48399053e2519aea1aed1074cd102bf4b553643df1866cce4ec
14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae