Evidence row 2201758

What was observed

{
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    [
      "x402",
      "https://hacker-news.x402tookit.com/hn-trending-topics"
    ]
  ],
  "name": "Hacker News",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
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        "amount": "30000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "30000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "30000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "30000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Trending keywords across current Hacker News stories: terms ranked by how many titles use them, with example titles.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "list": "top",
              "stories": 15,
              "top": 10
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-21T00:39:21.231Z",
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "list": "top",
              "notChecked": [
                "stories beyond the sample",
                "story text and comments (titles only)",
                "…2 more"
              ],
              "reasons": [
                "A term counts once per title. Own stopword list removes common words and Show HN/Ask HN prefixes; pure numbers are ignored."
              ],
              "source": "Hacker News (Firebase API and Algolia HN Search)",
              "sourceUrl": "https://news.ycombinator.com",
              "summary": "15 top titles analysed; top terms: systems (2), deepinfer (1), deepseek (1), framework (1), high-performance (1).",
              "terms": [
                {
                  "exampleTitles": [
                    "Academics have a duty to defend open knowledge systems like Wikipedia",
                    "Benchmarking Bot Detection Systems Against Modern AI Agents in 2026"
                  ],
                  "share": 0.13,
                  "term": "systems",
                  "titles": 2,
                  "totalScore": 122
                },
                {
                  "exampleTitles": [
                    "DeepInfer: High-performance inference framework for DeepSeek models"
                  ],
                  "share": 0.07,
                  "term": "deepinfer",
                  "titles": 1,
                  "totalScore": 2110
                }
              ],
              "termsReturned": 10,
              "titlesAnalysed": 15,
              "verdict": "TOPICS_RANKED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
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                },
                "queryParams": {
                  "properties": {
                    "list": {
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                      "type": "string"
                    },
                    "stories": {
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                      "type": "integer"
                    },
                    "top": {
                      "description": "Terms to return 1 to 20 (default 10)",
                      "type": "integer"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
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                "method"
              ],
              "type": "object"
            },
            "output": {
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                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
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                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "list": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceUrl": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "terms": {
                      "items": {
                        "properties": {
                          "exampleTitles": {
                            "items": {
                              "type": "string"
                            },
                            "type": [
                              "array",
                              "null"
                            ]
                          },
                          "share": {
                            "type": [
                              "null",
                              "number"
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                          },
                          "term": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "titles": {
                            "type": [
                              "null",
                              "number"
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                          },
                          "totalScore": {
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                              "null",
                              "number"
                            ]
                          }
                        },
                        "type": "object"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "termsReturned": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "titlesAnalysed": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:27:28.951Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T23:27:28.695Z"
    },
    "resource": "https://hacker-news.x402tookit.com/hn-trending-topics",
    "serviceName": "Hacker News",
    "tags": [
      "hackernews",
      "trends",
      "keywords",
      "topics"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Trending keywords across current Hacker News stories: terms ranked by how many titles use them, with example titles."
}

What the leaf hashes

{"body":"29e55b5c8be1b0e6c2f0bd5b94d344b98896cbec6ab67ed19bfd3d961c23cc9e","id":2201758,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808791517,"prev":null,"subject":"x402_bazaar:https://hacker-news.x402tookit.com/hn-trending-topics","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x3da662b26d438b71153acea85e19f0dcc20874f3f08675cf08c5cbf50fad60b9
2. 0x918e0dcc19885f0aa62b138c7252f000b64d11f9207ce1e712c6533375b8a021
3. 0x3e1c7f72b055ec6e7a4d26e557026e012275910a8c955d44ed43ea6a793a29ee
4. 0x74067f24da41b5d2ac2ca6a6ad11f64d73417fdad6e4ee56351c09609e0201c3
5. 0x719cf704958061b8c2765b544789f6d45e95dbf068eb0f5a1893f0b73e468913
6. 0x7ec3043063d5c445ee096a371f6c3a92ea8ca3b8b6b8af12e06c08eebd7f662e
7. 0xe42d01f22b87a5ca9fa3b6e636e76ff665c10c866301a1885e8ee9bd335e0775
8. 0xb1d8b5efcafe364583cb281ccc5fb0f0270182c61b4b299bf5f4c66378ac5a1b
9. 0x8de8ad7eacf8ce6196855a6d950f6d2d81316eb8e7475254b94c237a84da90f5
10. 0xa5bb22d30fc3fa463f92fbab27104c9aebd8fc49b2d1493b383e453316f07d96
11. 0x2be848cb86d72c2e582fe1d0a7c67c075a60e3819be24b46432581c3db979e93
12. 0xb1c944b99390ba5175965090f5362380c7485dc911c281e22b9c18263ec8c4ed
13. 0x361907c755dedca0a2adf05840c4c503b2c9a3af060e2659c8c63c2a1e438de2
14. 0x2205fefa1140121f3fe567e386a9612e8f7236f2a6b4c18d07e5fc4d08bd90e5
15. 0x8448bd1fe3c2d48b62a118ace4a5cb82fee53586dd43d776c2526ad844398919
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af