Evidence row 118939

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://qr-api-production-1836.up.railway.app/generate/styled"
    ]
  ],
  "name": "qr-api-production-1836.up.railway.app/generate/styled",
  "owner_address": "0xffc458db291b4abce020fe3de4f91f2770e537b1",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1",
        "scheme": "exact"
      }
    ],
    "description": "Generate a styled QR code PNG (base64 in JSON): custom foreground/background hex colours, module size, border, and error-correction level.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "back_color": "#ffffff",
              "border": 4,
              "box_size": 10,
              "data": "https://payapi.market",
              "error_correction": "H",
              "fill_color": "#1d4ed8"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "back_color": "#ffffff",
              "border": 4,
              "box_size": 10,
              "data": "https://payapi.market",
              "error_correction": "H",
              "fill_color": "#1d4ed8",
              "format": "png",
              "height": 370,
              "image_base64": "iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAABmJLR0QA/wD/AP+gvaeTAAAF...",
              "modules": 29,
              "size_bytes": 640,
              "version": 3,
              "width": 370
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "back_color": {
                      "description": "Background colour as #rgb or #rrggbb hex. Default #ffffff.",
                      "type": "string"
                    },
                    "border": {
                      "description": "Quiet-zone border in modules, 0-20. Default 4.",
                      "type": "integer"
                    },
                    "box_size": {
                      "description": "Pixels per module, 1-40. Default 10.",
                      "type": "integer"
                    },
                    "data": {
                      "description": "Text or URL to encode, up to 4296 characters.",
                      "type": "string"
                    },
                    "error_correction": {
                      "description": "Error-correction level: L, M, Q, or H. Default M.",
                      "type": "string"
                    },
                    "fill_color": {
                      "description": "Foreground colour as #rgb or #rrggbb hex. Default #000000.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "data"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "back_color": {
                      "description": "Background colour as normalised #rrggbb hex.",
                      "type": "string"
                    },
                    "border": {
                      "description": "Quiet-zone border width in modules.",
                      "type": "integer"
                    },
                    "box_size": {
                      "description": "Pixels per QR module.",
                      "type": "integer"
                    },
                    "data": {
                      "description": "The text or URL encoded into the QR code.",
                      "type": "string"
                    },
                    "error_correction": {
                      "description": "Error-correction level used: L, M, Q, or H.",
                      "type": "string"
                    },
                    "fill_color": {
                      "description": "Foreground colour as normalised #rrggbb hex.",
                      "type": "string"
                    },
                    "format": {
                      "description": "Image format of the returned bytes; always 'png'.",
                      "type": "string"
                    },
                    "height": {
                      "description": "PNG height in pixels.",
                      "type": "integer"
                    },
                    "image_base64": {
                      "description": "Base64-encoded PNG of the QR code.",
                      "type": "string"
                    },
                    "modules": {
                      "description": "QR module count per side (the grid dimension).",
                      "type": "integer"
                    },
                    "size_bytes": {
                      "description": "Byte length of the raw PNG.",
                      "type": "integer"
                    },
                    "version": {
                      "description": "QR version (1-40) chosen to fit the data.",
                      "type": "integer"
                    },
                    "width": {
                      "description": "PNG width in pixels.",
                      "type": "integer"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T10:01:14.227Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-08T10:01:14.047Z"
    },
    "resource": "https://qr-api-production-1836.up.railway.app/generate/styled",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Generate a styled QR code PNG (base64 in JSON): custom foreground/background hex colours, module size, border, and error-correction level."
}

What the leaf hashes

{"body":"8fafee2715eafb34a04e0fdd335bd29dda61743186a8a3e19a481a77fd89ab98","id":118939,"kind":"listing","method":"baseline/1","observed_us":1793025614040482,"prev":null,"subject":"x402_bazaar:https://qr-api-production-1836.up.railway.app/generate/styled","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x9f96632fcbf04c0044c50f0a489cd002f11d48458530cff6c17a0f2456692646
2. 0xf4203e5bd3810608833ac0c91839e675041ca22ec92630c4ea27ae2b4ec2d631
3. 0x6ab33d0995c2c9a537fb1d53a8fd6f11fa4479ac796142fb7631d2be709958c2
4. 0x90b33eee4fe4909a843d20ba5838824f625b1db24be40300948b30e6a9c3a10a
5. 0x084f91f3ea49f7919ffbd20a54b79ea0e8b279131cd5cfd43c6fbd753ae88931
6. 0x0719550df92bb3021713fafbc1103c4eb376d459a6a862d01dad06b97a6b1cba
7. 0xd7129434b51792c01eca94a2660c4f20ee2961a23ec37247e08eaf47c554aa96
8. 0x5b30c5d3b1d112443703c7ccd0afaa738dddf5387b6270bf9c608fff5bde8ba8
9. 0x746f0a3be72549514ae83b6e8b25f02867f85ef0b5dc76ab3c072aeb5394c301
10. 0xad33b6ed23e6b6f31de87919e88c08498b71327e286bf36d5ea11b6c48a97eee
11. 0xb5a5da1d8cc5364d4e1e81f176a4bcbca86e02bf02b30e06db118bb7f2c487a8
12. 0x6367dad81ab5c2e6f424ad3e06310c9b75079293d62a08dfbde98ef993c35229
13. 0xf8d3e004d9a208d2c5e82ab676956d80f8a3c78387c61dad15a3a8269efee0d8
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae