Evidence row 2201892

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://finance-calculators.x402tookit.com/break-even"
    ]
  ],
  "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": "Break-even units and revenue from fixed costs, unit price and unit variable cost, plus profit at a target volume.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "fixed_costs": 5000,
              "price": 25,
              "target_units": 500,
              "variable_cost": 9
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T03:59:14.220Z",
              "breakEvenRevenue": 7825,
              "breakEvenUnits": 313,
              "contributionMarginPerUnit": 16,
              "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.",
              "marginPct": 64,
              "notChecked": [
                "time to reach break-even",
                "price changes with volume",
                "…1 more"
              ],
              "profitAtTarget": 3000,
              "reasons": [
                "Contribution margin = price minus variable cost; break-even units = fixed costs / margin, rounded up."
              ],
              "source": "computed locally",
              "summary": "Break even at 313 units ($7,825.00 revenue); margin $16.00 per unit (64%). At 500 units: profit $3,000.00.",
              "targetUnits": 500,
              "verdict": "PROFITABLE_AT_TARGET"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "fixed_costs": {
                      "description": "Total fixed costs for the period",
                      "type": "number"
                    },
                    "price": {
                      "description": "Selling price per unit",
                      "type": "number"
                    },
                    "target_units": {
                      "description": "Units you expect to sell",
                      "type": "number"
                    },
                    "variable_cost": {
                      "description": "Variable cost per unit",
                      "type": "number"
                    }
                  },
                  "required": [
                    "fixed_costs",
                    "price",
                    "variable_cost"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "breakEvenRevenue": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "breakEvenUnits": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "contributionMarginPerUnit": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "marginPct": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "profitAtTarget": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "targetUnits": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:54:29.717Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:54:29.429Z"
    },
    "resource": "https://finance-calculators.x402tookit.com/break-even",
    "serviceName": "Finance Calculators",
    "tags": [
      "break-even",
      "business",
      "pricing"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Break-even units and revenue from fixed costs, unit price and unit variable cost, plus profit at a target volume."
}

What the leaf hashes

{"body":"6cc63ccdc92f04435927050dce07ea84fa306515d973e85e57db7eb316863bbe","id":2201892,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646810072817,"prev":null,"subject":"x402_bazaar:https://finance-calculators.x402tookit.com/break-even","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. 0x13ddda8fd34baef6c2ffb4dec90dbd349c69f26b4bebc5a21012f8e25cae3ea1
2. 0xdbed2b0f03b1366575546188602032de09dcd98064cae271bcbec7264131f56f
3. 0xb369c2f6fec84ea37298aec7268d0e250621ab990dfe30911b9d7fba5374b333
4. 0xd4ae86848f725cced7f947c95fddf161d151428f420e6e5af9ee89ae22f49394
5. 0x12a361c0ce212fc4bebd8b6b80773ae40cd8ad82d37c330783d3015d479197bc
6. 0x7b9425161a3104b93db3686131e5cbc6fab0d137bc13ee0cc65e28b57029d9a6
7. 0x68e91950fd476cb1c536fc81bb4a1fa8885a14414b22f69e32784dc744ba60f7
8. 0xec7018a40044ca3d426622c6234a84ded60df6194c7a99a0c589a4826a922a82
9. 0x8ec988bca82d0047156d4f0c85e27b889cf972f7bf78d76c401055c40e8ac5d7
10. 0xc635053557c23a9eaabfe93973688ae1022f421d23983f7f606f63f8da935bba
11. 0xdeb78f33f29706c5f81cd967f87da1b069e20b5996519030b1e70214d7fa9cf4
12. 0x75fcb364e7a706bfd03b16b4d46c9849304ceabd1a25061648ef5a08afc3203a
13. 0x2033fb9eab106440990c11257e1d6c1dd310c69a65a92d2e65f3ba6271b8c85e
14. 0xd35a6b56332d7bee4b13ce3efea77dd0a6863016f58691fb78e2e2faf7ab8e87
15. 0xb6470417fdb2a0e3de9c1abb1722cbc88bc0dfb5afda0a77e1eac26ab1683ece
16. 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af