Evidence row 2201630

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://machining-calc.x402tookit.com/speed-rpm"
    ]
  ],
  "name": "Machining & Fasteners Calc",
  "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": "Spindle rpm for a diameter at a surface speed (SFM or m/min), or the surface speed an rpm gives.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "diameter": 0.5,
              "surfaceSpeed": 100
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T22:56:16.818Z",
              "degraded": false,
              "diameter": 0.5,
              "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": [
                "whether the surface speed suits the material and tool grade",
                "machine maximum rpm and balance limits",
                "…1 more"
              ],
              "reasons": [
                "rpm = surface speed x constant / (pi x diameter)."
              ],
              "rpm": 763.9,
              "source": "computed locally (rpm = 12 SFM / (pi D) in inches; rpm = 1000 Vc / (pi D) in mm)",
              "summary": "0.5 in at 100 SFM runs at 764 rpm.",
              "surfaceSpeed": 100,
              "units": "imperial",
              "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": {
                    "diameter": {
                      "description": "Cutter or workpiece diameter, inches (imperial) or mm (metric)",
                      "type": "number"
                    },
                    "rpm": {
                      "description": "Spindle rpm to get the surface speed instead",
                      "type": "number"
                    },
                    "surfaceSpeed": {
                      "description": "Surface speed, SFM (imperial) or m/min (metric); send this or rpm",
                      "type": "number"
                    },
                    "units": {
                      "description": "imperial (default) or metric",
                      "type": "string"
                    }
                  },
                  "required": [
                    "diameter"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "diameter": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "rpm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "surfaceSpeed": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "units": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:35:30.038Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:35:29.872Z"
    },
    "resource": "https://machining-calc.x402tookit.com/speed-rpm",
    "serviceName": "Machining & Fasteners Calc",
    "tags": [
      "machining",
      "rpm",
      "sfm",
      "cnc"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Spindle rpm for a diameter at a surface speed (SFM or m/min), or the surface speed an rpm gives."
}

What the leaf hashes

{"body":"3b9a2d6545b2100a5b99eefbde4bb0062138192a1d27e9f9bcd782621bf77551","id":2201630,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806952098,"prev":null,"subject":"x402_bazaar:https://machining-calc.x402tookit.com/speed-rpm","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. 0xb185d34f56403f3217e45b7230a4a0fa8e325396cf7d76c15a1ed51237a9b213
2. 0xac18fff1fea8d6c7f1ad25832d699678e788eb18c7aea3683804f4a4afc387a2
3. 0xb7227df1e3f5992b7f54dd89bb8da528456efde005acdd72af8e2266a4e73e40
4. 0x4615f5bfe939be7b91b01038ab3ca6f11487aa638430e087221983d46a83f3ea
5. 0xa912cffe0178683fedfb15dd14a9acd624082171f3cbe87b176987e59b617e49
6. 0xee5f59a61e4811cc2a936d476ade2fb5f2008d2ba9ffc8d674c3fb3849841b0a
7. 0x510edbd7c6206808dd91d0cf808fd9412bc63272de4ab9441ad86c2816784e1a
8. 0xaf2f3a7248fb5c181d84cdfea34bced89d7b78c8de4f27e7897d6dc815d17d45
9. 0xaddd8657cc817d05e7c66dcce89ad6d7e4406ad476d682c881cf1f15afa32ffa
10. 0x24d1221d1292a4277b9cb1fe8444344412108a6aeecfb88a595d71a0dbaad4b0
11. 0xbb67a5c023ae809b439c6829ca844c48fdfcfd11a0e6adf9b3ba8651a66089d5
12. 0xf087d871ca9371733715e0ee714284dde8df08d54c23411920c514ebc8cdda25
13. 0xf214768748b83271814cb189e6d8ee47b2a524b5f96a73f108b1dc6771b128e1
14. 0x2f8469a138f90dfcfc93d4f817bc8f20341a871e08f629fe27a2cd40dbfeb340
15. 0x793184605629cd36ba80a07cbe115ca35e8923297bf024260c6f5c06b255f638
16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af