Evidence row 2201631

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://machining-calc.x402tookit.com/mrr"
    ]
  ],
  "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": "Metal removal rate for milling (width x depth x feed) or turning (surface speed x feed x depth of cut).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "depth": 0.25,
              "feed": 24,
              "mode": "milling",
              "width": 0.5
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T22:56:16.567Z",
              "cubicCmPerMin": 49.161,
              "cubicInchPerMin": 3,
              "cubicMmPerMin": 49161.2,
              "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.",
              "mode": "milling",
              "notChecked": [
                "spindle power and torque needed for this rate",
                "tool life at this rate",
                "…1 more"
              ],
              "reasons": [
                "MRR = radial width x axial depth x table feed."
              ],
              "source": "computed locally (milling MRR = ae x ap x feed; turning MRR = 12 SFM x f x ap in imperial, Vc x f x ap in mm)",
              "summary": "milling removes 3 in3/min (49.16 cm3/min).",
              "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": {
                    "depth": {
                      "description": "Axial depth for milling, or depth of cut for turning (inch or mm)",
                      "type": "number"
                    },
                    "feed": {
                      "description": "Milling table feed, inch/min or mm/min; required for milling",
                      "type": "number"
                    },
                    "feedPerRev": {
                      "description": "Turning feed per revolution, inch or mm; required for turning",
                      "type": "number"
                    },
                    "mode": {
                      "description": "milling or turning",
                      "type": "string"
                    },
                    "surfaceSpeed": {
                      "description": "Turning surface speed, SFM or m/min; required for turning",
                      "type": "number"
                    },
                    "units": {
                      "description": "imperial (default) or metric",
                      "type": "string"
                    },
                    "width": {
                      "description": "Milling radial width of cut (inch or mm); required for milling",
                      "type": "number"
                    }
                  },
                  "required": [
                    "mode",
                    "depth"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "cubicCmPerMin": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "cubicInchPerMin": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "cubicMmPerMin": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "mode": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "units": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:35:26.46Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:35:26.295Z"
    },
    "resource": "https://machining-calc.x402tookit.com/mrr",
    "serviceName": "Machining & Fasteners Calc",
    "tags": [
      "machining",
      "mrr",
      "milling",
      "turning"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Metal removal rate for milling (width x depth x feed) or turning (surface speed x feed x depth of cut)."
}

What the leaf hashes

{"body":"f09d9df18232fff6a67ccbaaa7ac1df8dccb0e4ae4a9fbb9ae3e08918a170f9e","id":2201631,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806954700,"prev":null,"subject":"x402_bazaar:https://machining-calc.x402tookit.com/mrr","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. 0xd52865627cdf7c80ff5f85d5a853095f56caf7645ee52dd735f2d8c243cc5d5a
2. 0x831552261f72227e01da036d745ff91f7837ff51c45e029c4e60ec0ae5ecf7ed
3. 0x37dd1b68df2f2d8de2d66134ffd8c3a2c99afcdcd1dd9dd26dbac79e1f6ecf1a
4. 0x6f4a59e1e310fc07dcddb45a776d93662c0b77d561e003221593984bfe3dafc8
5. 0x7f2034052ebec8f1e7b78f4cdea77aeb0c461608617d2b20dab8a0346284d19c
6. 0xbf8d5c34064f253465889e30ba24cbf83af86a8f5bf05e5473dffa854d4919ff
7. 0xcf4c6766150e9b9fa414f3b9c0c5064f0ff223cc315118707c25d69d666b9e4d
8. 0x16735410abc4d916be11f231d218a36bd5e2e4c11fefb735fc382418f0b762b8
9. 0x7400e99169acd4a67ff9130ae804cd355fce0a2fad03a523d0cb4d49e0c75f67
10. 0x16b990365ef6f3c88866157e9ea827afa5bf6078e433b052484d55488fa4133b
11. 0x7e19235bd70c24fa68e19d9c6b2a5552d51c8ca377bd6ad549d6fc2ebb9030ad
12. 0x072692234554b97382d37c92218486722ec2bf70517ce099e4442459f16a2b2b
13. 0x6a9bee5282acc64846540deef79ef327521ab20b00328c4b297bc96a5b4036c5
14. 0xc94ac971f2e2765086823b6227f70a7d3fdcf267884d07ae0a3f85c1caf941d2
15. 0xa9134f4ed9cec34e13ba243b6a51db73753dbbb3b48c63bd82b22694813d2b02
16. 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af