Evidence row 121037

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://screenshot-api-production-fe7e.up.railway.app/capture/fullpage"
    ]
  ],
  "name": "screenshot-api-production-fe7e.up.railway.app/capture/fullpage",
  "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 full-page (scrolled) PNG screenshot of an http(s) URL; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://example.com",
              "wait_until": "networkidle",
              "width": 1280
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "final_url": "https://example.com/",
              "format": "png",
              "full_page": true,
              "image_base64": "iVBORw0KGgoAAAANSUhEUgAAAAUA... (base64-encoded PNG bytes, truncated)",
              "size_bytes": 98765,
              "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": {
                    "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. Height auto-extends to the full page.",
                      "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"
                    },
                    "full_page": {
                      "type": "boolean"
                    },
                    "image_base64": {
                      "description": "Base64-encoded PNG bytes of the full scrolled page.",
                      "type": "string"
                    },
                    "size_bytes": {
                      "type": "integer"
                    },
                    "title": {
                      "type": "string"
                    },
                    "url": {
                      "type": "string"
                    },
                    "viewport": {
                      "description": "The starting viewport, as {width, height} in pixels.",
                      "type": "object"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T00:12:08.723Z",
    "quality": {
      "l30DaysTotalCalls": 42,
      "l30DaysUniquePayers": 9,
      "lastCalledAt": "2026-10-26T00:12:08.497Z"
    },
    "resource": "https://screenshot-api-production-fe7e.up.railway.app/capture/fullpage",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Capture a full-page (scrolled) PNG screenshot of an http(s) URL; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size."
}

What the leaf hashes

{"body":"877fa97d628018b36e9b1e43c30e97e51cc5ae5ae9b104ec255466c476d32dd5","id":121037,"kind":"listing","method":"baseline/1","observed_us":1793025619172303,"prev":null,"subject":"x402_bazaar:https://screenshot-api-production-fe7e.up.railway.app/capture/fullpage","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. 0xb68202095285d4f73bcfc9f485ea1841703b71323d56ea053646a48d7c25e08c
2. 0xc673f463ce63cdbde330897097cc117e0ebe17a0c677ecfd3c20c6220985a6f3
3. 0xa9f09d382febe7744bdf0e5320047de5cee6cffc9d1dc2337ca75848b9a0d0cb
4. 0x9b7320933370430917b97cc33372e7c19166ff8cf06e4f42c53400022a61b822
5. 0x9efe78cdf007f288074628e1060f8391431fb112412ccb51ba92610420ba2512
6. 0x5b46bc7e519feee5d8f73bd37ad889634580aad54d23c1f07e1d145a9baaa350
7. 0x13be281c2883aa9a6e6508f3a8404ad54767b1c49ba187289b7e5b7f8f0256f3
8. 0x1b87fd515e343a5ff0fd1fe1dc078fbe0b4c23e8bf429df75492b7812db92b95
9. 0x0585de311ce0311439459893eedb4cc55ed3c848458b8746571e30f6aefef6be
10. 0x8ad504c3df28b2abf4893577952a0655be9d4e70ea34ee4e1147dc0aa281fdd2
11. 0xfa91c460bb9b05b6890b46e5326a89c9e487b6419bd4d84337c05040222a2e6c
12. 0x17930d484cab3f6850715eb0b77dd189c3c06f975cf9def12285fde3eb9b4234
13. 0x0d86419ca1dd0b62fd8b22ea2e8c74d441312cec3116a467bea429b43e026565
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae