Evidence row 74538

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://eltociear-tokenguard.hf.space/social/hn"
    ]
  ],
  "name": "tokenguard",
  "owner_address": "0x5bcda55247b238a573a968b234f788a2d35664dd",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5bCDA55247B238a573A968B234F788a2D35664Dd",
        "scheme": "exact"
      }
    ],
    "description": "Hacker News full-archive search: stories, comments, Show HN and Ask HN with points, comment counts and URLs",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "limit": 10,
              "query": "x402"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "count": 2,
              "query": "x402",
              "results": [
                {
                  "comments": 118,
                  "points": 312,
                  "title": "…",
                  "url": "https://…"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "limit": {
                      "description": "1-50 hits (default 20)",
                      "type": "integer"
                    },
                    "query": {
                      "description": "Search terms; omit for the front page",
                      "type": "string"
                    },
                    "tags": {
                      "description": "story | comment | show_hn | ask_hn | front_page",
                      "type": "string"
                    }
                  },
                  "required": []
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "catalogue": {
        "discovery": "https://eltociear-tokenguard.hf.space/.well-known/x402",
        "note": "Same x402 rail (USDC on Base), same payTo wallet, no account or API key. GET the discovery URL for the full route list and prices.",
        "related": [
          {
            "covers": "pre-interaction EVM contract and token risk check",
            "discovery": "https://eltociear-contract-guard.hf.space/.well-known/x402",
            "service": "contract-guard"
          },
          {
            "covers": "web data (read/crawl/search), MCP and agent-skill security scanning, developer supply chain",
            "discovery": "https://eltociear-skill-audit.hf.space/.well-known/x402",
            "service": "skill-audit"
          }
        ],
        "resources": "https://eltociear-tokenguard.hf.space/x402-resources"
      }
    },
    "lastUpdated": "2026-10-08T06:14:28.56Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:14:28.456Z"
    },
    "resource": "https://eltociear-tokenguard.hf.space/social/hn",
    "serviceName": "tokenguard",
    "tags": [
      "social",
      "feeds",
      "web",
      "data",
      "ai-agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Hacker News full-archive search: stories, comments, Show HN and Ask HN with points, comment counts and URLs"
}

What the leaf hashes

{"body":"d340a1c8f9c585cb2752ff90caec443dc35a73ab0e1d216f2bff425d777b1a46","id":74538,"kind":"listing","method":"baseline/1","observed_us":1793025489199459,"prev":null,"subject":"x402_bazaar:https://eltociear-tokenguard.hf.space/social/hn","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. 0x55c0a4cb2bcdf0bf98afc689a317da0bba793c1245676ceb5daeb85910a9688a
2. 0x64e358794d52c95ad9286a0bf2ff4f2340d7f474fa98be062b8f072593c053bf
3. 0x38856e85d853476db10b053d7aa205fa706df4b145d5840b26a32acb13bcce3a
4. 0xd9aa268e7eb3ee88ba31a16d77c7efe380e12f1b2a3252ad9e5267ce11719d17
5. 0xf65f83538ddece3e20d710706f7c315fecc04f37e7b374e0a2ff7f0ccd38c2df
6. 0x6799fa26793c3e0e810eb7cefa0e320f1f96db4d984a1f1cde9bbd6e71969106
7. 0x44ec704c989f7e8226e393654ec54cb8feac0c9cca115010e9de764d67a774ed
8. 0x3bf044eef42cbf68f28c23f3af94d58c3a1f015167fc8ad83606bd3c4b5e3219
9. 0xa5267777420dc9fb6c1524fff56330d05c272095a49b9846ad760f34fa49d785
10. 0x67cc9e33a20bfc6e2cc4190cfe822576e88db4e067580d9b03de61490ef43281
11. 0x8bfd0cb3fe1b89aff78054dc0373bbd54ebd61d68eb05854663a1667ccf265ff
12. 0x31b890f57b06aeb1ca9fb0cdc688bb75678ab9b2ff8ba49765e3d7bc0ae98597
13. 0x8ba3430866b4c11cea7eba9923ee4fa8a5074849df417006e4441426c1f13056
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae