Evidence row 2201629

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://machining-calc.x402tookit.com/tap-drill"
    ]
  ],
  "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": "Tap drill size for metric coarse (M3 to M24) and common inch threads (#4-40 to 1/2-20), with the formula check.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "thread": "M8"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T22:56:17.070Z",
              "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.",
              "formulaDrillMm": 6.75,
              "majorDiameterMm": 8,
              "notChecked": [
                "fine-pitch metric threads",
                "thread percentage you want (this is the usual 75 percent)",
                "…2 more"
              ],
              "pitchMm": 1.25,
              "reasons": [
                "Published ISO coarse tap drill table.",
                "Formula check: major diameter 8 - pitch 1.25 = 6.75 mm; the table value is the nearest standard drill."
              ],
              "source": "published ISO metric coarse and unified tap drill tables; formula check: drill = major diameter - pitch (metric)",
              "summary": "M8x1.25: use a 6.8 mm tap drill.",
              "system": "metric coarse",
              "tapDrillInches": 0.2677,
              "tapDrillMm": 6.8,
              "thread": "M8",
              "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": {
                    "thread": {
                      "description": "Thread name, for example M8, M10, #10-24 or 1/4-20. Metric: M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24. Inch: #4-40, #6-32, #8-32, #10-24, #10-32, 1/4-20, 1/4-28, 5/16-18, 3/8-16, 1/2-13, 1/2-20",
                      "type": "string"
                    }
                  },
                  "required": [
                    "thread"
                  ],
                  "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"
                      ]
                    },
                    "formulaDrillMm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "majorDiameterMm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pitchMm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "system": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "tapDrillInches": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "tapDrillMm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "thread": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:35:33.094Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:35:32.93Z"
    },
    "resource": "https://machining-calc.x402tookit.com/tap-drill",
    "serviceName": "Machining & Fasteners Calc",
    "tags": [
      "machining",
      "tap",
      "drill",
      "thread"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Tap drill size for metric coarse (M3 to M24) and common inch threads (#4-40 to 1/2-20), with the formula check."
}

What the leaf hashes

{"body":"420bdfbad05eaa98cc19ef3caf2e3fcb36d745c32b1e84b8082a6c283a3c261d","id":2201629,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806949544,"prev":null,"subject":"x402_bazaar:https://machining-calc.x402tookit.com/tap-drill","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. 0x06f1f002cec81c8fc809bc18b472457aa4c12ba310075a54beb16418ea4afca8
2. 0xe94d94a61fd99fa6a19ad1f37a41c257f7e383070a9b05e74b46adf010a8038a
3. 0x3e89f81d7f3cf5421277b17da0b66cc767070f59387ea6fb2282c5b18f8ae06f
4. 0x562e947805e9b28d8ab94d47fe56e502143e421a60feacc6533e0dbe7d7d1ab8
5. 0xed66c1bdadb7f15746166c64f5bd4035a285eb9609d13e40903d005e6641e3df
6. 0x900792a14e0d4f452148ad4ff560df81396d44cb2d23e4edc14e51ac366e4728
7. 0xe56b4c998e5f60f08ef5787361aea67b9dbc4261a808638120ae177117bc6384
8. 0x6cb412d42d2b558532a279c2486b5ac5655de2c934027531c00f3983cfca65a8
9. 0x28c6892aa09ffd2f6579316e95b577af807bab4e831a0fa2d4163e7aa59214b2
10. 0x31fe286e154233360418e381071f52ed023a89bc619cb5babfabb6764a7c4a68
11. 0x9fe634cb620093705a6f0c011c3a6df7e0c6c1c87247bb7b3bc8652b69f26b96
12. 0x5a4bb2a742efda8c5fca9022296b0528dfaac5807b65e22eed672845bad6b21f
13. 0x09c4d50cc90ae90d0e870f84d23642d3d078e94f56d566d69c068b9edb2aec5c
14. 0x66ec51993542849e8bb0ec95d77eba3d6a82a6a4fd1696c4d0ddbb7a693845aa
15. 0x150a4dbcf309a6bb857da0b59f7588bd57a20fca094e579bf41d6cc6df9c7bff
16. 0x7cb861d18f06406535ade133f716d897f27d257cf0121f99d94c78c713c4b54d
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af