Evidence row 2201588

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://math-geometry.x402tookit.com/shape-measure"
    ]
  ],
  "name": "Algebra and Geometry Solvers",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
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        "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": "Area, perimeter, surface area and volume of circles, polygons, sectors, spheres, cylinders, cones, boxes, tori and more.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "h": 5,
              "r": 2,
              "shape": "cylinder"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:51:19.907Z",
              "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.",
              "inputs": {
                "h": 5,
                "r": 2
              },
              "lateralArea": 62.8318530718,
              "notChecked": [
                "units (results are in the square or cubic unit of your inputs)",
                "irregular shapes",
                "…1 more"
              ],
              "reasons": [
                "Standard formulas in double precision.",
                "Inputs for cylinder: r, h."
              ],
              "shape": "cylinder",
              "source": "computed locally",
              "summary": "cylinder (r=2, h=5): volume 62.8319, lateralArea 62.8319, surfaceArea 87.9646.",
              "surfaceArea": 87.9645943005,
              "verdict": "COMPUTED",
              "volume": 62.8318530718
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "R": {
                      "description": "Torus major radius",
                      "type": "number"
                    },
                    "a": {
                      "description": "Semi-axis or side a",
                      "type": "number"
                    },
                    "angleDeg": {
                      "description": "Sector angle in degrees",
                      "type": "number"
                    },
                    "b": {
                      "description": "Semi-axis or side b",
                      "type": "number"
                    },
                    "base": {
                      "description": "Triangle base",
                      "type": "number"
                    },
                    "baseArea": {
                      "description": "Pyramid base area",
                      "type": "number"
                    },
                    "c": {
                      "description": "Semi-axis c",
                      "type": "number"
                    },
                    "h": {
                      "description": "Height",
                      "type": "number"
                    },
                    "height": {
                      "description": "Triangle or trapezoid height",
                      "type": "number"
                    },
                    "l": {
                      "description": "Length (box)",
                      "type": "number"
                    },
                    "r": {
                      "description": "Radius (circle, sector, sphere, cylinder, cone, torus tube)",
                      "type": "number"
                    },
                    "shape": {
                      "description": "circle, rectangle, triangle, ellipse, trapezoid, regular-polygon, sector, sphere, cylinder, cone, box, pyramid, torus or ellipsoid",
                      "type": "string"
                    },
                    "side": {
                      "description": "Polygon side length",
                      "type": "number"
                    },
                    "sides": {
                      "description": "Polygon sides",
                      "type": "integer"
                    },
                    "w": {
                      "description": "Width",
                      "type": "number"
                    }
                  },
                  "required": [
                    "shape"
                  ],
                  "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"
                      ]
                    },
                    "inputs": {
                      "properties": {
                        "h": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "r": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "lateralArea": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "shape": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "surfaceArea": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "volume": {
                      "type": [
                        "null",
                        "number"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:37:35.032Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:37:34.863Z"
    },
    "resource": "https://math-geometry.x402tookit.com/shape-measure",
    "serviceName": "Algebra and Geometry Solvers",
    "tags": [
      "geometry",
      "area",
      "volume",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Area, perimeter, surface area and volume of circles, polygons, sectors, spheres, cylinders, cones, boxes, tori and more."
}

What the leaf hashes

{"body":"896f37a0a295235b3e64413dc9368079790e576929be3e571b2a6fd14f042aa9","id":2201588,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806791193,"prev":null,"subject":"x402_bazaar:https://math-geometry.x402tookit.com/shape-measure","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. 0xb61bd48d0501665d4b024a2ff1f20fd5e17edb841e00668fc8e7301822f2b5b2
2. 0x32bc55a22bc7b440c8877169a554cedced35371df498e41d398012165797d7fa
3. 0xbb4d7bf5a784eff20a4d714c1c92b5ff6206a228bc8f0b34e47834e9d67a70d5
4. 0x5c68340cc27fa037e5b8e4c9ef66c56670d626006f3eaa413488af336c2d6277
5. 0x62c861cf78138ac66d508943043c4e0f487957bed7091433d163dfebb60ebee8
6. 0x37acdbf041ed602709b2a374f06ef4f6e06a5a36fc09af21117a1bb8e6c96cac
7. 0x0772fde40a7a2c9e9fec94faef56fa17605fc09b6eeeaf852f3fc4d12bcd5f91
8. 0xb1651bdb6210aec40b8d319ae446a326faf00946f981aa1aa2a867dfebc2f00d
9. 0xc6ac3a94c33347ab0cdbe010836cd79487966ddb6e6fb9b77fcfdf950be97f6d
10. 0x10a6fe2fe9fb5fac8d8417e6be1f8baaade4ff99951fcaaefad29101bd5f96b9
11. 0x2555efb378c6b7cb5811b4ecf07798a08091d65ce945f40c90426df04f88ecf4
12. 0x5d48d61efa15a1eaabc2b8fe3288726baac176ec765001989034339357eb596c
13. 0x030e61e00342e920981555e2e665fa5ec4a741b10a078f282daa829896c87583
14. 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
15. 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af