Evidence row 75285

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://finance.openverbs.com/v1/future-value"
    ]
  ],
  "name": "Future value",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Future value of a present sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due (payments at the start of each period).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "payment": 1,
              "periods": 1,
              "presentValue": 1,
              "ratePercent": 1
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "dueAtBeginning": {
                      "description": "Annuity-due (payments at period start). Default false.",
                      "type": "boolean"
                    },
                    "payment": {
                      "description": "Level payment per period (annuity). Default 0.",
                      "type": "number"
                    },
                    "periods": {
                      "description": "Number of periods.",
                      "maximum": 100000,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "presentValue": {
                      "description": "Present lump sum. Default 0.",
                      "type": "number"
                    },
                    "ratePercent": {
                      "description": "Interest rate per period, as a percentage.",
                      "maximum": 1000,
                      "minimum": -99,
                      "type": "number"
                    }
                  },
                  "required": [
                    "ratePercent",
                    "periods"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:13:48.499Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:13:48.356Z"
    },
    "resource": "https://finance.openverbs.com/v1/future-value",
    "serviceName": "Future value",
    "tags": [
      "future value calculator",
      "annuity future value",
      "fv financial formula",
      "investment growth projection",
      "payments to future value"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Future value of a present sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due (payments at the start of each period)."
}

What the leaf hashes

{"body":"31775a5094e30e5961691e77faf51b495c18022165f6165d7ceda678adc8002a","id":75285,"kind":"listing","method":"baseline/1","observed_us":1793025490298229,"prev":null,"subject":"x402_bazaar:https://finance.openverbs.com/v1/future-value","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. 0xf7cbf4af0b87102d83b1e2dc39e6322a249e3c09b89e8fec4cacf379d07aa95c
2. 0xe880afb7a8de10bd8386e98e593c16a89b2a59632d2f4aab76c02f4fbaf9f9ab
3. 0x5fcb16f0dac27290a89d980ba473d29787620c06cb129d35d5e43e383115c21d
4. 0x9496af1728628b3da0d973ad3a029d8da146a66153594a2477089534397157d9
5. 0x92454312f8857c5a925be8a1fee42ba68d672501ff7ddd6ff35d9f9ce6b2d816
6. 0x03275610f2165334d697bf51e2791e6c46b7918a59532bbae80e00a9096bd6bd
7. 0x428e6a534f9cc278c1b8b2da6d4411a916677c1c508f358409d9fe707fab38a8
8. 0x8e991a3010c41f091862a69444bd88c130dbd05527dc7a6f1fdeae324287332d
9. 0x083ac856c9e7524f8d4826c4e61833d68bbe1eb3260e106cbaa6ff5485b44028
10. 0x8912095205c0419743c69fe2e0e31af1d737e6d84891a84908cff125ff0e8e71
11. 0x0836eb686ada9beddba0f76357ec59493359d2a7c51aa5c4a31d3cfe9873ea74
12. 0xf7eba200f6f1012d700fcc53fc6d57dcafd1019c920b1030d42fa21d4af95d94
13. 0x694eb701ea36a0e3dcde192253ab85a618738bdc1e3a6e582e6f8bf9647f7a6a
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae