Evidence row 75290

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://finance.openverbs.com/v1/present-value"
    ]
  ],
  "name": "Present 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": "Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "futureValue": 1,
              "payment": 1,
              "periods": 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"
                    },
                    "futureValue": {
                      "description": "Future lump sum. Default 0.",
                      "type": "number"
                    },
                    "payment": {
                      "description": "Level payment per period (annuity). Default 0.",
                      "type": "number"
                    },
                    "periods": {
                      "description": "Number of periods.",
                      "maximum": 100000,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "ratePercent": {
                      "description": "Discount 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": "2026-10-08T06:13:47.637Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T06:13:47.386Z"
    },
    "resource": "https://finance.openverbs.com/v1/present-value",
    "serviceName": "Present value",
    "tags": [
      "present value calculator",
      "annuity present value",
      "pv financial formula",
      "discount future cashflow",
      "payments to present value"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due."
}

What the leaf hashes

{"body":"34941174aa8c5b4357e2ea4f692379fbf6098f106858be96b26a95e437537d53","id":75290,"kind":"listing","method":"baseline/1","observed_us":1793025490304228,"prev":null,"subject":"x402_bazaar:https://finance.openverbs.com/v1/present-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. 0xa3d5b6cd79583aba71863a1b47e50652617f12e7d557d73286546c5733248e0b
2. 0x96499233a9ce3f69bd6d36956766bb3530dabcf0dcd0336062f58aac21f93f2a
3. 0x4eb8ad4b519dd6184c3e627f802d59ce2bc4bb1dd1cf8d2414c2a3f68762a4d1
4. 0xddf68d24ec4ffa0a911c75101338dddfb3dd60db2dcf8c087941c9c181247bf5
5. 0x68fdb95d0f02b27f85efa95950d62a4e7f0252362d36d8d1954d27400609e8d3
6. 0xf7790a6a46c91a137f1ba1bd5fd39208849e5203f40ce55d644fecaf4a894c22
7. 0x134a54c0a6ba708973bf2ee3959fb850cb667fbc69adf4ee8ee8a07729494d76
8. 0x39fb57078dc9c97a739715891aa93aaa1f4ee4294989abc0017d50c26bf35b5d
9. 0x78fde7b709e6e55ad9a4e9212d8138abddd3ae38821487602e87956fa71abd08
10. 0x98005a23cbe74a9cdea08497a91d96ddecf46b8942b406963266e78529eea12d
11. 0xf02ec0f13d875e636ca9d24097cc2a185cdb09429c8c4ade598b8089f42bb140
12. 0x19537c574979327583a539261287714af2eee831125de819abab0f155acd3a75
13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae