Evidence row 121039

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://screenshot-api-production-fe7e.up.railway.app/capture/screenshot"
    ]
  ],
  "name": "screenshot-api-production-fe7e.up.railway.app/capture/screenshot",
  "owner_address": "0xffc458db291b4abce020fe3de4f91f2770e537b1",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1",
        "scheme": "exact"
      }
    ],
    "description": "Capture a viewport-sized PNG screenshot of an http(s) URL with headless Chromium; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "height": 800,
              "url": "https://example.com",
              "wait_until": "networkidle",
              "width": 1280
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "final_url": "https://example.com/",
              "format": "png",
              "image_base64": "iVBORw0KGgoAAAANSUhEUgAAAAUA... (base64-encoded PNG bytes, truncated)",
              "size_bytes": 24680,
              "title": "Example Domain",
              "url": "https://example.com",
              "viewport": {
                "height": 800,
                "width": 1280
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "height": {
                      "description": "Viewport height in pixels (240-3840). Defaults to 800.",
                      "type": "integer"
                    },
                    "url": {
                      "description": "The http(s) URL to capture, e.g. 'https://example.com'. Internal/loopback hosts are rejected.",
                      "type": "string"
                    },
                    "wait_until": {
                      "description": "Playwright load state to wait for before capture: 'load', 'domcontentloaded', 'networkidle', or 'commit'. Defaults to 'networkidle'.",
                      "type": "string"
                    },
                    "width": {
                      "description": "Viewport width in pixels (320-3840). Defaults to 1280.",
                      "type": "integer"
                    }
                  },
                  "required": [
                    "url"
                  ],
                  "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": {
                    "final_url": {
                      "type": "string"
                    },
                    "format": {
                      "type": "string"
                    },
                    "image_base64": {
                      "description": "Base64-encoded PNG bytes of the viewport screenshot.",
                      "type": "string"
                    },
                    "size_bytes": {
                      "type": "integer"
                    },
                    "title": {
                      "type": "string"
                    },
                    "url": {
                      "type": "string"
                    },
                    "viewport": {
                      "description": "The clamped viewport used, as {width, height} in pixels.",
                      "type": "object"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T00:13:38.811Z",
    "quality": {
      "l30DaysTotalCalls": 37,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-26T00:13:38.642Z"
    },
    "resource": "https://screenshot-api-production-fe7e.up.railway.app/capture/screenshot",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Capture a viewport-sized PNG screenshot of an http(s) URL with headless Chromium; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size."
}

What the leaf hashes

{"body":"318f24d4c7bfaf9f50e4de6dd8adad8a068c0a465b15ee8e78de4c1c6a74a93d","id":121039,"kind":"listing","method":"baseline/1","observed_us":1793025619176228,"prev":null,"subject":"x402_bazaar:https://screenshot-api-production-fe7e.up.railway.app/capture/screenshot","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. 0x8c953fdc8f81609f2c7646f96500d882176d58c9cfe2941f551c91d92121addd
2. 0xfae2b1e77de8efd126ff3b74da679e91cc0dc2287f9fca24f1439ca19d2b8f3f
3. 0x94973ad5adf4c8dcd27dd8140da2d311ee304ccbb2cfd47b41149b251b7e8396
4. 0xb7776bb42a58ce91660f2b0f76dc0b79bd3c6cf5404f95bc3201cbdff54b7909
5. 0xaca465ac7795f5c754ab64c7029057dee35e7f1f0fd61baa36328566b1b14bc9
6. 0x45a55060c005a16352fbabfcd8b802b87285c235c922aad1da80529c42654e11
7. 0x310b2532653d4d1bbdb8986b3f10ce2c6f8f28c89d9c48364ba9131ce0d9630d
8. 0x44dcd8c2e45bd3758753c2308314c3b0ce55b1a719895d828bb23148f2ab81c8
9. 0x0beb9cab91ea16591bb42106a5eb202ecfb87c67075ee3c8a067eea1f93c4e9c
10. 0x8b2110c771e54d98456ae5dfad5a23a7974780c363c2fa58a2fcb3729da25836
11. 0x86b2c30da5bda0b772dc691263cbbe9779ec35b67c9966d10e728daa3e47ae48
12. 0xfc86b2282cb8f91e68280efe01f3c50453c94fae2ef04af1a75d4b05d0af2b8f
13. 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae