Evidence row 68837

What was observed

{
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    [
      "x402",
      "https://api.sitecheck-api.workers.dev/api/hn/search"
    ]
  ],
  "name": "SiteCheck",
  "owner_address": "0xb8491f953e6860d3b5840b73c60883ff099ceafa",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "J8vnmBx4pS1X7UUBTfz1yWBKiw69Dj2yRGRHDaXBRdhR",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x3600000000000000000000000000000000000000",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:5042",
        "payTo": "0xa4751fCAa83c9669cfe507bb6807507729839be3",
        "scheme": "exact"
      }
    ],
    "description": "Full-text search of Hacker News stories or comments through the Algolia HN API: title, URL, author, points, comment count, time and HN link; comments include their text (max 500 characters). Filters: date range (from, to as YYYY-MM-DD), minimum points, sort by relevance or date. Covers the public HN index only; limit max 25.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "3",
              "q": "rust",
              "type": "story"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checkedAt": "2026-10-15T18:21:08.101Z",
              "count": 3,
              "nbHits": 60865,
              "query": "rust",
              "results": [
                {
                  "author": "Sikul",
                  "comments": 642,
                  "createdAt": "2020-02-04T17:30:40Z",
                  "hnUrl": "https://news.ycombinator.com/item?id=22238335",
                  "id": "22238335",
                  "points": 1582,
                  "title": "Why Discord is switching from Go to Rust",
                  "url": "https://blog.discordapp.com/why-discord-is-switching-from-go-to-rust-a190bbca2b1f"
                },
                {
                  "author": "darthdeus",
                  "comments": 972,
                  "createdAt": "2024-04-26T17:33:56Z",
                  "hnUrl": "https://news.ycombinator.com/item?id=40172033",
                  "id": "40172033",
                  "points": 1484,
                  "title": "Leaving Rust gamedev after 3 years",
                  "url": "https://loglog.games/blog/leaving-rust-gamedev/"
                },
                {
                  "author": "selvan",
                  "comments": 330,
                  "createdAt": "2021-01-02T05:50:39Z",
                  "hnUrl": "https://news.ycombinator.com/item?id=25610741",
                  "id": "25610741",
                  "points": 1444,
                  "title": "A half-hour to learn Rust",
                  "url": "https://fasterthanli.me/articles/a-half-hour-to-learn-rust"
                }
              ],
              "sort": "relevance",
              "source": "Hacker News via the Algolia HN Search API (hn.algolia.com/api) — Hacker News content, check its terms",
              "type": "story"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "from": {
                      "description": "Earliest creation date YYYY-MM-DD (optional)",
                      "type": "string"
                    },
                    "limit": {
                      "description": "Results, 1-25 (default 10)",
                      "type": "string"
                    },
                    "minPoints": {
                      "description": "Minimum points (default 0)",
                      "type": "string"
                    },
                    "q": {
                      "description": "Search words (1-200 characters)",
                      "type": "string"
                    },
                    "sort": {
                      "description": "relevance (default) or date (newest first)",
                      "type": "string"
                    },
                    "to": {
                      "description": "Latest creation date YYYY-MM-DD (optional)",
                      "type": "string"
                    },
                    "type": {
                      "description": "story (default) or comment",
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-16T08:28:24.183Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-16T08:28:24.064Z"
    },
    "resource": "https://api.sitecheck-api.workers.dev/api/hn/search",
    "serviceName": "SiteCheck",
    "tags": [
      "hacker news",
      "search",
      "discussion",
      "tech"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Full-text search of Hacker News stories or comments through the Algolia HN API: title, URL, author, points, comment count, time and HN link; comments include their text (max 500 characters). Filters: date range (from, to as YYYY-MM-DD), minimum points, sort by relevance or date. Covers the public HN index only; limit max 25."
}

What the leaf hashes

{"body":"7892f1a9642cb429737481fede65f5328136fc58afe927896a107c042c1ff760","id":68837,"kind":"listing","method":"baseline/1","observed_us":1793025468296904,"prev":null,"subject":"x402_bazaar:https://api.sitecheck-api.workers.dev/api/hn/search","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. 0xbfdfac6ee019f9af461e593a1edddaf4644b69059ed5761cdd81925f92865831
2. 0xb8cdc27998792298c356ce54359f583b2efae758c90637f6183a45a9331ca315
3. 0xcaef7a7970d1794c10695bf84e76694bc1e05785581be64626f35fb9ffbe3222
4. 0xefab96a7ad54e50d8baf998f5b9f8871a3ef5a2c9d233f438f9dd04553606d63
5. 0xcaa9d05505b11d04cd8510db3cb1949fbb274da4d3fb314e51c49bb9a9013588
6. 0xd2b4f73087eaa431470672294087cefae6d416e079cca45bfafe1108dbd8907e
7. 0xd048d31da1718cf098bd8457f071740f180b002c44d406f4495399f380d589ce
8. 0xa400c634e38837a6ff51434c33c8a8ab1bc2ed20aef280a25b20d16394b66882
9. 0xb3160580eccc8e8d67bacf38c4e880e2e476c81637f8d5327a5b0c5ea59c074b
10. 0xb33388c24233bd0f8d79ebb3c3ccad47f73830bca7936d0dea5659e86f4fa250
11. 0x1ee01b339a84463f4b1d9b89cf58bd877e8b7f91bd1aa7bb362bc554f4a1cae7
12. 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae