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Evidence row 1262252

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://api.firstmention.uk/s/pageaudit/audit
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
ca26b2cf35b454bd45618b8ac292e33a07331312ffc3e1f4b4550391c3b32434
Leaf
0x878dc50730d231790df1ebd2eab50c52237b90b5bd1ff8446d84ae04e1d7ba8a

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.firstmention.uk/s/pageaudit/audit"
    ]
  ],
  "name": "pageaudit",
  "owner_address": "0x9d47067ca95620721515cbc7b91530e44b9dddcd",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9D47067cA95620721515cBc7B91530E44b9ddDcd",
        "scheme": "exact"
      }
    ],
    "description": "One call, full picture of a web page: clean markdown, metadata (title, description, canonical, OpenGraph, favicon), heading outline, link census with resolved links, link health checks and a change…[11 more chars, already applied]",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "check_links": 10,
              "max_markdown_chars": 20000,
              "url": "https://news.ycombinator.com/"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "change_hash": "0a080719be9fbb82a86a45b80dc8c2a430fbe17dc93d23758debac092864d00f",
              "headings": [
                {
                  "level": 1,
                  "text": "Hacker News"
                }
              ],
              "link_health": {
                "broken": 1,
                "checked": 10,
                "ok": 9,
                "results": [
                  {
                    "ok": true,
                    "status": 200,
                    "url": "https://example.com/"
                  }
                ]
              },
              "links": {
                "checked": 10,
                "external": 78,
                "found": 198,
                "internal": 120
              },
              "markdown": "# Hacker News ...",
              "markdown_chars": 17001,
              "meta": {
                "canonical": "",
                "description": "",
                "favicon": "https://news.ycombinator.com/favicon.ico",
                "og": {},
                "title": "Hacker News"
              },
              "ok": true,
              "price_usd": "0.01",
              "status": 200,
              "url": "https://news.ycombinator.com/"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "check_links": {
                      "description": "Number of unique links to health-check (0-15, default 0)",
                      "maximum": 15,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "max_markdown_chars": {
                      "description": "Cap on returned markdown length (1000-200000, default 40000)",
                      "maximum": 200000,
                      "minimum": 1000,
                      "type": "integer"
                    },
                    "url": {
                      "description": "Public http(s) page to audit",
                      "format": "uri",
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "change_hash": {
                      "type": "string"
                    },
                    "headings": {
                      "items": {
                        "properties": {
                          "level": {
                            "type": "number"
                          },
                          "text": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "link_health": {
                      "properties": {
                        "broken": {
                          "type": "number"
                        },
                        "checked": {
                          "type": "number"
                        },
                        "ok": {
                          "type": "number"
                        },
                        "results": {
                          "items": {
                            "properties": {
                              "ok": {
                                "type": "boolean"
                              },
                              "status": {
                                "type": "number"
                              },
                              "url": {
                                "type": "string"
                              }
                            },
                            "type": "object"
                          },
                          "type": "array"
                        }
                      },
                      "type": "object"
                    },
                    "links": {
                      "properties": {
                        "checked": {
                          "type": "number"
                        },
                        "external": {
                          "type": "number"
                        },
                        "found": {
                          "type": "number"
                        },
                        "internal": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "markdown": {
                      "type": "string"
                    },
                    "markdown_chars": {
                      "type": "number"
                    },
                    "meta": {
                      "properties": {
                        "canonical": {
                          "type": "string"
                        },
                        "description": {
                          "type": "string"
                        },
                        "favicon": {
                          "type": "string"
                        },
                        "og": {
                          "properties": {},
                          "type": "object"
                        },
                        "title": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "ok": {
                      "type": "boolean"
                    },
                    "price_usd": {
                      "type": "string"
                    },
                    "status": {
                      "type": "number"
                    },
                    "url": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-29T22:18:27.887Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-29T22:18:27.721Z"
    },
    "resource": "https://api.firstmention.uk/s/pageaudit/audit",
    "serviceName": "pageaudit",
    "tags": [
      "extract",
      "markdown",
      "metadata",
      "seo",
      "audit"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "One call, full picture of a web page: clean markdown, metadata (title, description, canonical, OpenGraph, favicon), heading outline, link census with resolved links, link health checks and a change…[11 more chars, already applied]"
}

What the leaf hashes

{"body":"ca26b2cf35b454bd45618b8ac292e33a07331312ffc3e1f4b4550391c3b32434","id":1262252,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385521149926,"prev":null,"subject":"x402_bazaar:https://api.firstmention.uk/s/pageaudit/audit","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (243099 rows).

  1. 0x878dac1ead7f102854febc804437be03071d5919a55e90f39b5b926d34e9f610
  2. 0x0bea513e73170d4e1b6dfce28fcc2251929657914edf1c95c044cc91280f32a6
  3. 0x29c7ebafbfa4707e1b376caa593a1ea561339d113c6a4ab25095e0bf9f13dd9d
  4. 0x28387c482ac92dd9fa6f3baa23dbc3797fd742a75071034404ef9d810de4ec04
  5. 0xfc9833c2ee9735967212a54bacd24ba4a61fbd90ec06ab7d75ae98159932052a
  6. 0x86af31043b55eaa25a91cb8a5aac5c84e0e2de324f7f10f6f42fdce3969a55e2
  7. 0xa328f5a3d3c35d3f73f8bee24521290febd59f29b55d0ee06aa106fe73e3d219
  8. 0x45375107dc7eed6affdeb850f5fa73a2a89f5e96b748b61a9e6216e0fef972af
  9. 0xbb154ba5bfafd2035f9868387bb44af5cfefbacf17bd48fc9aa2001f67f67ba8
  10. 0x706a7339a5a2b4be2d3038254dcec654d5aadcb64d22bd129e5bd175fd38894a
  11. 0xb34f7e1d1fbcdcf5b711702c7e90960faff27d8ef3e2675dad185f1bb72b0f04
  12. 0xb0e4b32e912a7486483209c1123ae9b81c06e353bebc42740735f2c185418f6c
  13. 0xa0bdb5f3bd27bfda93487148c281e2998b9a5f0ec8cec2ae9b744375d5414046
  14. 0x2cc23d59d659d5b819934005bab57d036b04ff4c8b701cb0e274c40aaddb2d51
  15. 0x235114e50a987e65d728b9ef8b5978846cd7c01f22effc55dd604c388ce359ec
  16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
  17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
  18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147
Day root
0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
Chained
0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
Published
On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861

How to check it · This row as JSON