Evidence row 2201483

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://paper-print-calc.x402tookit.com/print-pixels"
    ]
  ],
  "name": "Paper & Print 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": "Pixels needed for a print size at a dpi (with bleed), or the largest print size an image supports at a chosen dpi.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "dpi": 300,
              "heightMm": 297,
              "widthMm": 210
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T01:48:15.201Z",
              "bleedMm": 0,
              "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.",
              "dpi": 300,
              "heightInches": 11.6929,
              "megapixels": 8.7,
              "notChecked": [
                "viewing distance (large posters are fine at 100 to 150 dpi)",
                "the file's actual sharpness, colour space or compression",
                "…1 more"
              ],
              "pixelsHigh": 3508,
              "pixelsHighWithBleed": 3508,
              "pixelsWide": 2480,
              "pixelsWideWithBleed": 2480,
              "reasons": [
                "Pixels = inches x dpi, rounded to the nearest pixel."
              ],
              "source": "computed locally (inches x dpi)",
              "summary": "210 x 297 mm at 300 dpi needs 2480 x 3508 px.",
              "uncompressedRgbMegabytes": 24.9,
              "verdict": "COMPUTED",
              "widthInches": 8.2677
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "bleedMm": {
                      "description": "Bleed added on every side in mm, 0 to 10 (default 0)",
                      "type": "number"
                    },
                    "dpi": {
                      "description": "Dots per inch (default 300)",
                      "type": "number"
                    },
                    "heightInches": {
                      "description": "Print height in inches",
                      "type": "number"
                    },
                    "heightMm": {
                      "description": "Print height in mm",
                      "type": "number"
                    },
                    "pixelsHigh": {
                      "description": "Image height in pixels",
                      "type": "integer"
                    },
                    "pixelsWide": {
                      "description": "Image width in pixels, with pixelsHigh, to get the largest print size",
                      "type": "integer"
                    },
                    "widthInches": {
                      "description": "Print width in inches (use inches or mm, with height) to get the pixels",
                      "type": "number"
                    },
                    "widthMm": {
                      "description": "Print width in mm",
                      "type": "number"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "bleedMm": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "dpi": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "heightInches": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "megapixels": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pixelsHigh": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pixelsHighWithBleed": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pixelsWide": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pixelsWideWithBleed": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "uncompressedRgbMegabytes": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "widthInches": {
                      "type": [
                        "null",
                        "number"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:42:48.97Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:42:48.811Z"
    },
    "resource": "https://paper-print-calc.x402tookit.com/print-pixels",
    "serviceName": "Paper & Print Calc",
    "tags": [
      "print",
      "dpi",
      "pixels",
      "resolution"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Pixels needed for a print size at a dpi (with bleed), or the largest print size an image supports at a chosen dpi."
}

What the leaf hashes

{"body":"6364dbbf94c21cf590493fad205077c773ef38a1f7c2cd87f918d8f52012827f","id":2201483,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646805681756,"prev":null,"subject":"x402_bazaar:https://paper-print-calc.x402tookit.com/print-pixels","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. 0xe61086d0acb56468a138c3764ffbbd75d2c3351457bc24dc15e7808f752fe4ad
2. 0x9a8803dc7895db0df23e5629c9bdf80700769175134f194a2f6e60c6adccace4
3. 0xb40b8bd884e29b2e87fc94dc297d79e09653a4aa881090b273a57911b59bf95f
4. 0x3205ed8e46742c4ec5b638ee7012ebb301e5c34439b8ec808879e0e2c2d71d29
5. 0x1ed85a57cffccb81af157b68248321da23122b5eb5b5ff1ea9fa0b97cd58e901
6. 0x8c33789c878acd8ce8e83d689aaded01224744ebb7ad04150fa7d75f002f00af
7. 0x9a04acedc2600805205b7a250826dbc9e360af6ddd560366edf6296dbd5b241c
8. 0x31613aa1f32721cc82569e2f953923d1a106d6979fbfd67efa0d5ac647e9732a
9. 0x72070239479218fdda99c9ad0212f61a7f33a336730c2e6b611d7e80f5281bd2
10. 0x1a01f1f7bf1303eed559237837d50351fc20f9f89c33056190b204e98e216ab9
11. 0x77334c9bb8469361dc2647a421761450f3a3aee062881cd908dcd380bd9cb382
12. 0x6e5a50bc795c5cacf8d07a6a7782267c29257d38dd1b857933910a4cfb7ea84f
13. 0x699db14025d495a48d39671ab634de3d8cbdf71cc080884a285592176d87ef84
14. 0x3e441d3f53c7b69d6c73ef93d327dfc3071a522c550856540832b34fcb531738
15. 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
16. 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af