Evidence row 67380

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.mekler.ai/v1/web/urls/check-reachability"
    ]
  ],
  "name": "Mekler AI",
  "owner_address": "0xf6c6e2e530bb311c14a49c1a07c720fc232c07c5",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "meklerQuote": "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.7e072066c1ca1739bdfa1f6ab7e2437240c8fa31460b7367882988e3a4bb150c",
          "memo": "m:fgcgZsHKFzm9-h9qt-JDcg"
        },
        "maxTimeoutSeconds": 60,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "meklerQuote": "eyJhbW91bnQiOiIzMDAwIiwiYXNzZXQiOiIweDgzMzU4OWZDRDZlRGI2RTA4ZjRjN0MzMkQ0ZjcxYjU0YmRBMDI5MTMiLCJkaWdlc3QiOiI0NWZhZGU3MWQ1ODM4NWI5YzFhODdhYTc2MDNjOWM1NGVkMjdhYjcyNzk2YTk1NjBmNWZkYzhmYjIzMWYyMDY2IiwiZXhwaXJlcyI6MTc5MjM1ODAwOCwiZmVlUGF5ZXIiOiIiLCJuZXR3b3JrIjoiZWlwMTU1Ojg0NTMiLCJvcmlnaW4iOiJodHRwczovL2FwaS5tZWtsZXIuYWkiLCJwYXRoIjoiL3YxL3dlYi91cmxzL2NoZWNrLXJlYWNoYWJpbGl0eSIsInBheVRvIjoiMHhGNmM2RTJlNTMwYmIzMTFjMTRhNDlDMWEwN0M3MjBmYzIzMmMwN2M1IiwicHJvdmlkZXIiOiJjZHAiLCJ2ZXJzaW9uIjoidXJsLWluc3BlY3Rpb24tdjIifQ==.702942d428363ba45f9a299f6620b36b5ed85d7d6cd53e2a63660c7591287993",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
        "scheme": "exact"
      }
    ],
    "description": "Inspect a public URL for HTTP status, redirect chain, content type and reported size before downloading it. Uses HEAD with bounded GET fallback, DNS-pinned public-address checks and up to five redirects. Reports server-declared sizes separately from observed sample bytes. No full download, content safety verdict or uptime guarantee.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "request_id": "url-inspection-example-001",
              "url": "https://mekler.ai/"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "content_type": "text/html",
              "final_url": "https://mekler.ai/",
              "http_status": 200,
              "limitations": [
                "HEAD metadata and range samples do not verify full content or total download size.",
                "Only public HTTP(S) ports80/443, up tofive redirects; robots restrictions apply.",
                "An observed HTTP error or redirect loop is a completed diagnostic, not guaranteed future availability."
              ],
              "observed_at": "2026-10-18T00:00:00Z",
              "outcome": "reachable",
              "redirects": [
                {
                  "method": "HEAD",
                  "status": 200,
                  "url": "https://mekler.ai/"
                }
              ],
              "reported_size_bytes": 1024,
              "requested_url": "https://mekler.ai/",
              "sample_bytes_observed": 0,
              "sample_truncated": false,
              "size_basis": "server_header",
              "status": "ok"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "request_id": {
                      "pattern": "^[A-Za-z0-9_-]{16,64}$",
                      "type": "string"
                    },
                    "url": {
                      "maxLength": 2048,
                      "type": "string"
                    }
                  },
                  "required": [
                    "url",
                    "request_id"
                  ],
                  "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": {
                  "additionalProperties": false,
                  "properties": {
                    "content_type": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "final_url": {
                      "type": "string"
                    },
                    "http_status": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "limitations": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "observed_at": {
                      "type": "string"
                    },
                    "outcome": {
                      "type": "string"
                    },
                    "redirects": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "method": {
                            "type": "string"
                          },
                          "status": {
                            "type": "integer"
                          },
                          "url": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "url",
                          "status",
                          "method"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "reported_size_bytes": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "requested_url": {
                      "type": "string"
                    },
                    "sample_bytes_observed": {
                      "type": "integer"
                    },
                    "sample_truncated": {
                      "type": "boolean"
                    },
                    "size_basis": {
                      "type": "string"
                    },
                    "status": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "status",
                    "requested_url",
                    "final_url",
                    "outcome",
                    "http_status",
                    "redirects",
                    "content_type",
                    "reported_size_bytes",
                    "size_basis",
                    "sample_bytes_observed",
                    "sample_truncated",
                    "observed_at",
                    "limitations"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-18T21:11:28.448Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-18T21:11:28.054Z"
    },
    "resource": "https://api.mekler.ai/v1/web/urls/check-reachability",
    "serviceName": "Mekler AI",
    "tags": [
      "Web",
      "HTTP",
      "Redirects"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Inspect a public URL for HTTP status, redirect chain, content type and reported size before downloading it. Uses HEAD with bounded GET fallback, DNS-pinned public-address checks and up to five redirects. Reports server-declared sizes separately from observed sample bytes. No full download, content safety verdict or uptime guarantee."
}

What the leaf hashes

{"body":"dcf843b27f222a13bf77290b605ffd2b7e9c405dc58120e44852ec95b2e58a43","id":67380,"kind":"listing","method":"baseline/1","observed_us":1793025462694650,"prev":null,"subject":"x402_bazaar:https://api.mekler.ai/v1/web/urls/check-reachability","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. 0x5d2a3e80f6764ee2f76aacc3305e20d4d692a2764cde4d1411a9ad8ebe96d0b7
2. 0xd787fd053ef724d621acf7c625a83aaaeb27e0fdf8049acdeada9151888a700e
3. 0x1a5ca2e6eb1e3100397fcf76259a566604d8341b738442fac084625c3fa82e9f
4. 0x309119720c6fc924cb1126cbd9878008ae6fea1cfc9a63430940765ac40a457f
5. 0xf07b329f01c7fc7eb86b8ca07ba7c53bec5abe9f5758b7d70125de8716e5e29f
6. 0x8216e88be37ad9b81e2a580cd38e67faa97c7f0e3abb1a79cc27d760481edfd8
7. 0xa43f72ad748626b989e9ac431abccfce26ff4ac374654bb5723dd10c6e6f93d0
8. 0xf5c626e30e4ade9fc33b819ed022da91a7247d7a9ceef2ac7016e313ebdcf239
9. 0xe83b2a73139a45ac5e787f5f8d00e2fdb51ec0acd6751a60cbf0f65dfcfc455f
10. 0x71c75f9312be1c838a554f724b6fc57894e7c4486ab7e013b6a6a8d65cfaebea
11. 0xb91bf0ba3ebff769d1b88f93fcb076477149787a7e31c3c28ce4fe8823b7c144
12. 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae