Evidence row 2202075

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://construction-calc.x402tookit.com/fence-calc"
    ]
  ],
  "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": "Posts, rails and pickets for a straight fence from its length, post spacing, picket width and gap.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "heightFt": 6,
              "lengthFt": 100,
              "picketGapIn": 0.5,
              "picketWidthIn": 5.5,
              "postSpacingFt": 8
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T14:25:13.159Z",
              "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.",
              "fenceRunFt": 100,
              "gates": 0,
              "heightFt": 6,
              "notChecked": [
                "corners, ends and gate posts beyond the simple count (line, corner and end posts are not separated)",
                "post depth, concrete, hardware and local height or setback rules",
                "…2 more"
              ],
              "pickets": 200,
              "picketsWithWaste": 210,
              "postSpacingFt": 8,
              "posts": 14,
              "railLinearFt": 312,
              "rails": 39,
              "reasons": [
                "Posts = sections + 1, plus one extra per gate (gates take 4 ft of the length).",
                "Three rails per section, by height.",
                "…1 more"
              ],
              "sections": 13,
              "source": "computed locally",
              "summary": "13 sections: 14 posts, 39 rails and 210 pickets (200 + 5% waste) for 100 ft at 6 ft high.",
              "verdict": "ESTIMATE"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "gates": {
                      "description": "Gates, each takes 4 ft of fence length and 1 extra post, default 0",
                      "type": "integer"
                    },
                    "heightFt": {
                      "description": "Fence height in feet, default 6",
                      "type": "number"
                    },
                    "lengthFt": {
                      "description": "Total fence length in feet",
                      "type": "number"
                    },
                    "picketGapIn": {
                      "description": "Gap between pickets in inches, default 0.5 (0 for privacy)",
                      "type": "number"
                    },
                    "picketWidthIn": {
                      "description": "Actual picket width in inches, default 5.5",
                      "type": "number"
                    },
                    "postSpacingFt": {
                      "description": "Post spacing in feet, default 8",
                      "type": "number"
                    },
                    "wastePct": {
                      "description": "Picket waste, default 5",
                      "type": "number"
                    }
                  },
                  "required": [
                    "lengthFt"
                  ],
                  "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"
                      ]
                    },
                    "fenceRunFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "gates": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "heightFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pickets": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "picketsWithWaste": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "postSpacingFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "posts": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "railLinearFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "rails": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "sections": {
                      "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": "2026-11-01T22:43:51.568Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:43:51.386Z"
    },
    "resource": "https://construction-calc.x402tookit.com/fence-calc",
    "serviceName": "Construction Calculators",
    "tags": [
      "fence",
      "posts",
      "pickets",
      "estimating"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Posts, rails and pickets for a straight fence from its length, post spacing, picket width and gap."
}

What the leaf hashes

{"body":"173907b19c5032aa114ea4e442ab897f40dcb81f820e40e4e187ecc3c6ec8842","id":2202075,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646812405050,"prev":null,"subject":"x402_bazaar:https://construction-calc.x402tookit.com/fence-calc","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. 0xe85c7a4614a0b17a816524abb593f93f2ff9d5c3f56b0907f1ad7da9f1321eea
2. 0xed7f984488c271631c2f609f19c99a6dea827decfeb47925c1ae895bf3c329fa
3. 0x7fdc1e8aeecc69168766f15c2f53ae5775e4379edd566cac7affb4868065b8ce
4. 0x8cd4eab9e081c0f0bdaea1bf1e0880e807b070cc2e4e22551d06508415fd9d41
5. 0xdf41602d6fc24c8473ed5998917e825eda974d4906cc50e0e7a11125ecf8ef19
6. 0x6a33b3995f8da4c798332e492d5137d8ae41889ab4e79afd71dae54abd793935
7. 0x0e05c80ac747b8c6a249f7ddae2286ab0906cd7f7c1671b6d7e07d53a15cd4b4
8. 0x55d91d3b6b0d17d23015848e4b12bd8509d6c518456a2fb0e42e622c3f1eef12
9. 0x37260c0df9efb143e0b22ca0c8ba0f42aa041d3994357df63d25093dfd282638
10. 0x069079eecd417dc7260a2829088c970ddf1db3afda4800d4be021fd33dea64f3
11. 0x539b790d68c0b6a309b522634b35f80bf5a78c4a6477a411e00939a1c31f6a60
12. 0x841ad4eaef71169e03e95d2082a5c83db1b3a56a9753b17df04fe34aa579b749
13. 0x0418958fa118b0a6a70d8e336a1073213853f5a3502b9ffc66202cc82d3dd472
14. 0xf02baa2f8f9b385919b2f698b2e9351b84bd44118a8d5a72f2d1303df2c329b4
15. 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
16. 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af