Evidence row 123262

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://twin.unykorn.org/research/hn-front-page
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: f12d3ad5de388b81e2235985e5cffc2c341dad7c5e534e9cb3ba88cfe1fd1ea7
Leaf: 0x7b0681e25e51c1bccd4ab0c26bdc6710ae8d78a9b823b2cde9f3775f4254174f

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://twin.unykorn.org/research/hn-front-page"
    ]
  ],
  "name": "Hacker News front page right now",
  "owner_address": "0x7d9a65d06dcc435a52d5880c6310bd6e96c156db",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "3000",
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxAmountRequired": "3000",
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "52EqTZigRAnBphuYAuREjQJx5H5ryyc1RETpDR2dZFQp",
        "scheme": "exact"
      }
    ],
    "description": "Hacker News front page right now — Genesis402 / UnyKorn Operator Network",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "params": {
                "limit": 10
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "evidence_hash": "sha256:<64hex>",
              "generated_at": "<iso time>",
              "limitations": "<text>",
              "ok": true,
              "receipt": {
                "amount_usd": 0.003,
                "receipt_id": "g402-<16hex>",
                "tx_hash": "0x<64hex>"
              },
              "sources": [
                {
                  "name": "<source>",
                  "ok": true
                }
              ],
              "type": "hn-front-page"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "params": {
                      "properties": {
                        "limit": {
                          "description": "max rows (default 30, max 50)",
                          "maximum": 50,
                          "minimum": 1,
                          "type": "integer"
                        }
                      },
                      "type": "object"
                    }
                  },
                  "required": [
                    "params"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T18:40:52.97Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T18:40:52.822Z"
    },
    "resource": "https://twin.unykorn.org/research/hn-front-page",
    "serviceName": "Hacker News front page right now",
    "tags": [
      "tech news",
      "trending",
      "hacker news",
      "infra",
      "ai"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Hacker News front page right now — Genesis402 / UnyKorn Operator Network"
}

What the leaf hashes

{"body":"f12d3ad5de388b81e2235985e5cffc2c341dad7c5e534e9cb3ba88cfe1fd1ea7","id":123262,"kind":"listing","method":"baseline/1","observed_us":1793025622941333,"prev":null,"subject":"x402_bazaar:https://twin.unykorn.org/research/hn-front-page","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON