Evidence row 2201884

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://finance-calculators.x402tookit.com/savings-goal"
    ]
  ],
  "name": "Finance Calculators",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Monthly saving needed to reach a goal by a date, given what you already have and an expected annual return.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "annual_return_pct": 4,
              "current": 5000,
              "goal": 50000,
              "years": 5
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T03:59:16.304Z",
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "interestEarned": 5275.39,
              "monthlyNeeded": 662.08,
              "months": 60,
              "notChecked": [
                "taxes",
                "inflation (nominal goal)",
                "…1 more"
              ],
              "projectedFromCurrent": 6104.98,
              "reasons": [
                "Contributions at month end, compounding monthly."
              ],
              "source": "computed locally",
              "summary": "Save $662.08 a month for 60 months to reach $50,000.00 at 4% a year (current savings grow to $6,104.98).",
              "totalContributions": 39724.61,
              "verdict": "MONTHLY_AMOUNT_COMPUTED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "annual_return_pct": {
                      "description": "Expected annual return, default 0",
                      "type": "number"
                    },
                    "current": {
                      "description": "Already saved, default 0",
                      "type": "number"
                    },
                    "goal": {
                      "description": "Target amount",
                      "type": "number"
                    },
                    "years": {
                      "description": "Years to reach it",
                      "type": "number"
                    }
                  },
                  "required": [
                    "goal",
                    "years"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "interestEarned": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "monthlyNeeded": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "months": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "projectedFromCurrent": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "totalContributions": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:54:50.145Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:54:49.953Z"
    },
    "resource": "https://finance-calculators.x402tookit.com/savings-goal",
    "serviceName": "Finance Calculators",
    "tags": [
      "savings",
      "goal",
      "planning"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Monthly saving needed to reach a goal by a date, given what you already have and an expected annual return."
}

What the leaf hashes

{"body":"ff6f7e367eede5ee0adc66760ea03dba458d3c4d545dcea6bdf467523f3a52a4","id":2201884,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646810029807,"prev":null,"subject":"x402_bazaar:https://finance-calculators.x402tookit.com/savings-goal","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x3391437ce642375052a97c9afaa7f8de392b331888f53477760d28bd6e986b5a
2. 0x2acef7c8d82abecd483499f6c5e97b0ba3e2ff51af73f0afed0fe54814a19e52
3. 0xf48fe6d8891356b81a0affc91f4c000bd77291baf9b9acbe49a844a53a78e547
4. 0x4babb8df629444d71d5586b0f075b7bcfe939ef5e70518b43886779401e6691e
5. 0xb20be9f18d0c17cc83457d7090f4d748c1359cedfd13e39a35e92eaaf0963a67
6. 0x6fefe0e41c12b722c8cf28ddd1ec2b68ca8baccf1474100659d588b3a96c4abd
7. 0x32893ab7b6e86c88cc799f07a79b3f5840c2c23840b500084445c603898c3302
8. 0xf74b3f5af62ab48fd7fce7dd999ba86e342ac95bf16e05a0d381825c75d614c1
9. 0x8f49c0044197a00f72d225c9b3233e8fd2cb0bc5aacf973e796e9a03b1d7e6a9
10. 0x2b4be41dbddbdabd39aa2550cf93b3eb96c621a711f60e8efa0c598d94df57ef
11. 0x1f646a4d42dc395574ab18effb9b384bc7ce9b0f4ab2a92b3c3c05ec79bb2a78
12. 0xfbb11fbb16df1387fcf6dad1ff255bb69acc83242a947f9efddb3836b0f91e4b
13. 0xdcc1d9c1067e77e4536008fca60e4d4987a5b540ec77923110dc668972c55745
14. 0x74cae95d275254a9c747b603bd40b5086c5725fd3e904782e6447e4647e8b049
15. 0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
16. 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af