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Evidence row 68836

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://api.sitecheck-api.workers.dev/api/hn
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
8ec471b9be0d4d56228d563e95f0f631bdc40904c8cb2462173946b0eab0c44a
Leaf
0x266fd4a24dd8c23c2f9bf32bb7bb004eb19edf2df7acaff64aa6b469d3d3591c

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.sitecheck-api.workers.dev/api/hn"
    ]
  ],
  "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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "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"
      },
      {
        "amount": "2000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:143",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:480",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:10",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42220",
        "payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
        "extra": {
          "areFeesSponsored": true
        },
        "maxTimeoutSeconds": 300,
        "network": "stellar:pubnet",
        "payTo": "GBIX2M7HNL2G2VYU5KZ446OSN55ZWHS3WBEUP4JTLS6R34VXIGTDOAFI",
        "scheme": "exact"
      },
      {
        "amount": "0.002",
        "asset": "524C555344000000000000000000000000000000",
        "extra": {
          "areFeesSponsored": false,
          "invoiceId": "27113ff6-264e-4ffb-90ec-3600abb44bd4",
          "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
          "sourceTag": 804681468
        },
        "maxTimeoutSeconds": 300,
        "network": "xrpl:0",
        "payTo": "rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ",
        "scheme": "exact"
      },
      {
        "amount": "1540",
        "asset": "XRP",
        "extra": {
          "areFeesSponsored": false,
          "invoiceId": "bf816530-babd-4951-9eae-f21cc270ce2f",
          "sourceTag": 804681468
        },
        "maxTimeoutSeconds": 300,
        "network": "xrpl:0",
        "payTo": "rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ",
        "scheme": "exact"
      }
    ],
    "description": "Hacker News stories or comments from the Algolia search API: keyword search (q) or the current front page (mode=front), optionally since a date. Stories give title, URL, HN link, points, comments, author and time. Comments give their text (400 characters, HTML stripped) and the story title. Up to 50 results. Public data, no key.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "5",
              "q": "x402",
              "type": "story"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checkedAt": "2026-10-13T18:40:00.000Z",
              "query": {
                "mode": null,
                "q": "x402",
                "since": null,
                "type": "story"
              },
              "results": [
                {
                  "author": "example",
                  "comments": 58,
                  "createdAt": "2026-09-30T14:12:03Z",
                  "hnUrl": "https://news.ycombinator.com/item?id=50001234",
                  "points": 142,
                  "title": "Show HN: Pay-per-call APIs for AI agents with x402",
                  "url": "https://example.com/x402-agents"
                }
              ],
              "returned": 1,
              "source": "Hacker News via the Algolia HN Search API (https://hn.algolia.com/api). Posts belong to their authors; attribution: Hacker News (https://news.ycombinator.com)",
              "total": 120
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "limit": {
                      "description": "Max results, 1-50, default 20",
                      "type": "string"
                    },
                    "mode": {
                      "description": "front: the current front page (stories only)",
                      "type": "string"
                    },
                    "q": {
                      "description": "Keywords",
                      "type": "string"
                    },
                    "since": {
                      "description": "YYYY-MM-DD: only items from this day on",
                      "type": "string"
                    },
                    "type": {
                      "description": "story (default) or comment",
                      "type": "string"
                    }
                  },
                  "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": "2026-10-25T07:42:10.137Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T07:42:09.492Z"
    },
    "resource": "https://api.sitecheck-api.workers.dev/api/hn",
    "serviceName": "SiteCheck",
    "tags": [
      "hacker news",
      "news",
      "tech trends",
      "social signals",
      "research"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Hacker News stories or comments from the Algolia search API: keyword search (q) or the current front page (mode=front), optionally since a date. Stories give title, URL, HN link, points, comments, author and time. Comments give their text (400 characters, HTML stripped) and the story title. Up to 50 results. Public data, no key."
}

What the leaf hashes

{"body":"8ec471b9be0d4d56228d563e95f0f631bdc40904c8cb2462173946b0eab0c44a","id":68836,"kind":"listing","method":"baseline/1","observed_us":1793025468295648,"prev":null,"subject":"x402_bazaar:https://api.sitecheck-api.workers.dev/api/hn","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x266fbc95af6df52409007121fee55ac0bb922014271f0a633c1df52a76eb21cf
  2. 0xa9ca1392a67d04261c95a5e60869c34723abc75d947fa78919cc1983c7394eb5
  3. 0xa48b95c604fca9e869b0a33efa0491197f6b078a27f25677001cb21422c9b255
  4. 0xcd1d7fe7071f3c1954d2585df6c879d0d88fba4b5fa6d0a4350786ffb02720ab
  5. 0x72d28fef05f14e78a3975b548b06c9f9c84e33fe8b9c901fe42bac354a91327d
  6. 0x13830dbba750a27b5e7125e4c6656ff52caa93794e567f270f6d0634b9be6330
  7. 0x9c609337b83d34a29d8c3e6380d511a990e07338e2cc39a052e81f3d201ef74d
  8. 0x97d5f6295eed4688fe1a84ef1a5bfd1a8e3b1379da0fb5d8da5fea83e2075389
  9. 0xeac39e1a0ebecf6a1aabde93560176deeaf9d6126348ff76ef10cd221e99e21c
  10. 0x1dad1edcb2a79dd2d06559e438975ccfdf5ae3c94d461c1d78f86118f235991b
  11. 0x90f2b3a28efa276421488834f526df2e5769ef8f14ee569439eea7b97f77a866
  12. 0x266d991b0a994042474d2789bd5d3ba2433a122ae3c1027e2ccd7c0f4cf63071
  13. 0x830b2c874449c7499489eba2baa67d49f991298225763c0161b471621038d0fb
  14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
  15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
  16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON