Evidence row 2202073

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://construction-calc.x402tookit.com/roof-pitch"
    ]
  ],
  "name": "Construction 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": "Convert roof pitch (rise per 12), angle or percent slope; get the rafter length multiplier and roof area factor.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "pitch": 6,
              "runFt": 12
            },
            "type": "http"
          },
          "output": {
            "example": {
              "angleDeg": 26.5651,
              "areaMultiplier": 1.118034,
              "asOf": "2026-10-11T14:25:13.674Z",
              "class": "conventional",
              "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.",
              "notChecked": [
                "overhangs, eaves, hips and valleys (which lengthen rafters and change area)",
                "structural sizing, spacing and snow or wind loads",
                "…1 more"
              ],
              "pitchRisePer12": 6,
              "rafterLengthFt": 13.41641,
              "rafterMultiplier": 1.118034,
              "reasons": [
                "Rafter and roof surface area both scale by sqrt(1 + (rise/12)^2) compared with the flat footprint.",
                "Pitch is rise per 12 inches of horizontal run."
              ],
              "slopePercent": 50,
              "source": "computed locally",
              "summary": "6:12 pitch = 26.565 degrees = 50% slope; rafter length is 1.11803 x the horizontal run, so 13.4164 ft for a 12 ft run (conventional).",
              "verdict": "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": {
                    "angleDeg": {
                      "description": "Roof angle in degrees (instead of pitch)",
                      "type": "number"
                    },
                    "percent": {
                      "description": "Slope percent (instead of pitch)",
                      "type": "number"
                    },
                    "pitch": {
                      "description": "Rise per 12 in of run, for example 6 for 6:12",
                      "type": "number"
                    },
                    "runFt": {
                      "description": "Horizontal run in feet, to get the rafter length",
                      "type": "number"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "angleDeg": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "areaMultiplier": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "class": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pitchRisePer12": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "rafterLengthFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "rafterMultiplier": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "slopePercent": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:43:56.892Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:43:56.717Z"
    },
    "resource": "https://construction-calc.x402tookit.com/roof-pitch",
    "serviceName": "Construction Calculators",
    "tags": [
      "roof",
      "pitch",
      "rafter",
      "slope",
      "carpentry"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Convert roof pitch (rise per 12), angle or percent slope; get the rafter length multiplier and roof area factor."
}

What the leaf hashes

{"body":"5a1c8e0e1bab60e89839bb961be27a5dc6b72650836ca6907e8092189d44ba3d","id":2202073,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646812399287,"prev":null,"subject":"x402_bazaar:https://construction-calc.x402tookit.com/roof-pitch","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. 0x767d768676be059166ade711591268beb81b80d1e22bf4fbf9be14f8c440a7c7
2. 0x792ab573f6356c67d96997aa3be76e1008e30228fa7e4098cc8fbe0d5c33bd46
3. 0x9caf1f1177e0e24f2ce93e7ed7e5ed4df2b70043e6aaabcbafcbb692c8aa4596
4. 0x33a5882f51490d9709161eafa47435225a8c1b28952b3b845c1eaf290c8545ea
5. 0x7049b36c844fee6ace2fa860718616f4c8550ec61a6045c011121c975d702f78
6. 0xc39271d3db76774ddc19915f68cdba46f07ae7d081da97fece6ea654e4a87425
7. 0x613097dd5580a2c6e37ae2054cccd1acc1cb26478ee41fd4078703b3045698bf
8. 0x55603f058942e8d393e77535be4ac871f0385ab780593afb8af0865e2f4cde5f
9. 0x7f1fd4b116c8d2b2307b1b808878b41c42c33325ecf6588f4cca320f8c5b46eb
10. 0x217b20d27936cceaa9d86fae6224094f4c80ce8c012824c80281150e1b59451b
11. 0x0557890fb1a6a2767cecfe6769a163b6f7f2ceca201130260f7d286d15773827
12. 0xe9747ccde895d2aba14067132d86b41625938fce0a85a8efad50b5f89104f4b2
13. 0x98c0b976487311f03693fca7825f5f6e75a71ea33ac90caf33040d5eaa6d0b54
14. 0xe387a7d610f91d4dc112f2dbdf7ae32c4555f5da4c25c1a9a1310d0b74e80bbf
15. 0x60dd7fd8117cbf3b80707f722623736c8c2b5b56277e8e78c9f81ef2dab8deab
16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af