Evidence row 75286

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://finance.openverbs.com/v1/interest"
    ]
  ],
  "name": "Simple / compound interest",
  "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": "Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "annualRatePercent": 1,
              "compoundsPerYear": 1,
              "method": "simple",
              "principal": 1,
              "years": 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": {
                    "annualRatePercent": {
                      "description": "Annual interest rate as a percentage.",
                      "maximum": 1000,
                      "minimum": 0,
                      "type": "number"
                    },
                    "compoundsPerYear": {
                      "description": "Compounding periods per year (compound only). Default 12.",
                      "maximum": 365,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "method": {
                      "description": "Interest method. Default compound.",
                      "enum": [
                        "simple",
                        "compound"
                      ],
                      "type": "string"
                    },
                    "principal": {
                      "description": "Starting principal.",
                      "maximum": 1000000000000000,
                      "minimum": 0,
                      "type": "number"
                    },
                    "years": {
                      "description": "Number of years.",
                      "maximum": 1000,
                      "minimum": 0,
                      "type": "number"
                    }
                  },
                  "required": [
                    "principal",
                    "annualRatePercent",
                    "years"
                  ],
                  "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": "2026-10-08T05:39:18.835Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T05:39:18.561Z"
    },
    "resource": "https://finance.openverbs.com/v1/interest",
    "serviceName": "Simple / compound interest",
    "tags": [
      "compound interest calculator",
      "simple interest calculator",
      "grow principal",
      "interest over time",
      "monthly compounding api"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly)."
}

What the leaf hashes

{"body":"b6983880402088a69185d7facd38420d3ff953efe046fb277c6aa876c6b99323","id":75286,"kind":"listing","method":"baseline/1","observed_us":1793025490299565,"prev":null,"subject":"x402_bazaar:https://finance.openverbs.com/v1/interest","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. 0x7d9b79707182d41d043f7d08e374ab1f35c1a08396b838177b44a60075c07039
2. 0x33695f6d9da8bca0b4070f8d716edfbde97549c163bf20ef791e0a105929c246
3. 0x25ff3c4513438b0e9a10659486058fa96dd04774abfe86a91b0552afd1869991
4. 0x5c09544a8796aa8ab5f706702b765eb68280e2e87d07c8b5c4e746d64d81808d
5. 0x44c2f43a909a36d3dd772f1305e73b9c8d00b66149472b1a566773165fc19cca
6. 0x824c4c5987c4baaaf01a8281cb829f62d66c9552bb4ff16b02b0818be3f12a05
7. 0x168d3fc202227b8edc6ae4cdf8b63787df816377b0e12174fe2b1163f8c0ef21
8. 0xcad543f037410e18b620be4568677dd3d1ec330aec49676b3ded9be57171d5a7
9. 0xf0c521c76e6895a1d4c2d0bc9b57bf3c58f99d0a19c1129adb4684fbf86456ae
10. 0x9fa5dbe99ca21068042ed16a3612abec879ae9bc437beeaf788519de22645918
11. 0xaf10e841089e5989890dc77ffce42a46564d25ef15f30d1e35bf53a495483ad4
12. 0xab729e4203b650f2a3c15efd6fd44eb2482232373bc1de662fd9d496869eb2d3
13. 0x0bffb634300aa5609bddaa79e8d31d7cde36c0a5a4465472f809b9f5287e40d2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae