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Evidence row 77316

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://manylives.me/paid/calc/finance
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
865df69950bbf47d4b78784667b2333089ebd18c23c7b699b2f9054846da2bfd
Leaf
0x254760944c652c97034903b3fb733d09410f85f976d451e8def65618c8b69e53

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://manylives.me/paid/calc/finance"
    ]
  ],
  "name": "manylives.me/paid/calc/finance",
  "owner_address": "0xd161874249321f8ae3000c19ddd070e46682f1b3",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xD161874249321F8AE3000C19DdD070e46682f1B3",
        "scheme": "exact"
      }
    ],
    "description": "Exact finance maths: loan repayment and total interest, compound growth with regular contributions, NPV and IRR of cash flows, and ROI with annualised return.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "op": "loan",
              "principal": "400000",
              "rate": "6",
              "years": "30"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "op": "loan",
              "payment": 1798.65,
              "total_interest": 247514,
              "total_paid": 647514
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "const": "GET",
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "contribution": {
                      "description": "compound: added each period",
                      "type": "string"
                    },
                    "cost": {
                      "description": "roi: amount invested",
                      "type": "string"
                    },
                    "flows": {
                      "description": "npv/irr: comma-separated cash flows, first is usually negative",
                      "type": "string"
                    },
                    "op": {
                      "description": "loan, compound, npv, irr or roi (required)",
                      "examples": [
                        "loan"
                      ],
                      "type": "string"
                    },
                    "payments_per_year": {
                      "description": "loan: default 12",
                      "type": "string"
                    },
                    "periods_per_year": {
                      "description": "compound: default 12",
                      "type": "string"
                    },
                    "principal": {
                      "description": "loan/compound: starting amount",
                      "examples": [
                        "400000"
                      ],
                      "type": "string"
                    },
                    "rate": {
                      "description": "annual rate in percent (loan, compound, npv)",
                      "examples": [
                        "6"
                      ],
                      "type": "string"
                    },
                    "value": {
                      "description": "roi: final value",
                      "type": "string"
                    },
                    "years": {
                      "description": "loan/compound/roi: years",
                      "examples": [
                        "30"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "op"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-09T01:30:59.125Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-09T01:30:58.765Z"
    },
    "resource": "https://manylives.me/paid/calc/finance",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Exact finance maths: loan repayment and total interest, compound growth with regular contributions, NPV and IRR of cash flows, and ROI with annualised return."
}

What the leaf hashes

{"body":"865df69950bbf47d4b78784667b2333089ebd18c23c7b699b2f9054846da2bfd","id":77316,"kind":"listing","method":"baseline/1","observed_us":1793025493810827,"prev":null,"subject":"x402_bazaar:https://manylives.me/paid/calc/finance","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x254753d3feca8ad40470c6efea7d8180c4f3280f79173d1d9f9bd2b4408ddb69
  2. 0xfc6f02523f65e3fcb8359771fb994636d9560d56a515b54a708140c50fcc2573
  3. 0x39ab7df4404954649bf724a004cbf02ac7ab9c71a759d99198f986810476fe29
  4. 0x152fd627cc36285299207c947aa789cc464383770546109fb0a4ce910c215f94
  5. 0x0801eae4aa761bc599d3b9aed4e9e705a3f16e32bd24bc79e1165bf2912ab910
  6. 0x8e1645b178a4fdf3ee8041f632d6822bf580a93c5c154a943c3f12d462c558aa
  7. 0x6fbd7156233d78954bd48565b445c2baf4845810a25b0180a2108e11612420c6
  8. 0x8c4437a54e161e56f6511260a868bd5909f9f12c054521f046875814e9cfc1bc
  9. 0xe0ec3cb867c1d6d6934adce03b9860c51aac68beb3585d32db4eb0a316cc2ac4
  10. 0xa3e719d02f51b46be66819cdf2d71d951df05065c30197eda7848e688a094863
  11. 0xcd59d6e87f33016070792bd627b1f58155e890e1fdf84deab560cdcb1c986874
  12. 0x2ceb9cc3a43f479e6ab73db5d3d474a93995fb4188ee45f71846b4cf537a0016
  13. 0x830b2c874449c7499489eba2baa67d49f991298225763c0161b471621038d0fb
  14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
  15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
  16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON