Evidence row 35510

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://hn.caseyjhand.com/mcp"
    ]
  ],
  "name": "io.github.cyanheads/hn-mcp-server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-18T22:59:22.808745Z",
        "status": "active",
        "statusChangedAt": "2026-10-18T22:59:22.808745Z",
        "updatedAt": "2026-10-18T22:59:22.808745Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Browse Hacker News feeds, threads, and user profiles with full-text search.",
      "name": "io.github.cyanheads/hn-mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "10",
              "description": "Max concurrent HTTP requests for batch item fetches (integer, 1–50).",
              "format": "string",
              "name": "HN_CONCURRENCY_LIMIT"
            },
            {
              "default": "info",
              "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warning').",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            }
          ],
          "identifier": "@cyanheads/hn-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.5.22"
        },
        {
          "environmentVariables": [
            {
              "description": "Selects the HTTP transport.",
              "format": "string",
              "name": "MCP_TRANSPORT_TYPE",
              "value": "http"
            },
            {
              "default": "10",
              "description": "Max concurrent HTTP requests for batch item fetches (integer, 1–50).",
              "format": "string",
              "name": "HN_CONCURRENCY_LIMIT"
            },
            {
              "default": "127.0.0.1",
              "description": "The hostname for the HTTP server.",
              "format": "string",
              "name": "MCP_HTTP_HOST"
            },
            {
              "default": "3010",
              "description": "The port to run the HTTP server on.",
              "format": "string",
              "name": "MCP_HTTP_PORT"
            },
            {
              "default": "/mcp",
              "description": "The endpoint path for the MCP server.",
              "format": "string",
              "name": "MCP_HTTP_ENDPOINT_PATH"
            },
            {
              "default": "none",
              "description": "Authentication mode to use: 'none', 'jwt', or 'oauth'.",
              "format": "string",
              "name": "MCP_AUTH_MODE"
            },
            {
              "default": "info",
              "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warning').",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            }
          ],
          "identifier": "@cyanheads/hn-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "streamable-http",
            "url": "http://localhost:3010/mcp"
          },
          "version": "0.5.22"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://hn.caseyjhand.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/cyanheads/hn-mcp-server"
      },
      "version": "0.5.22"
    }
  },
  "source": "mcp_registry",
  "summary": "Browse Hacker News feeds, threads, and user profiles with full-text search."
}

What the leaf hashes

{"body":"e1fcefc72e4b95abf90b747bce53117f9c167c14442e8ff043d0eecc1c6c8e5b","id":35510,"kind":"listing","method":"baseline/1","observed_us":1793025373170759,"prev":null,"subject":"mcp_registry:io.github.cyanheads/hn-mcp-server","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. 0x1da4843c93ca1412e23ea4c017fc241168fb719a148b5b4ed9cb209118e9f7c7
2. 0x99c6b9fd4e93c08c474f65551fa383cb3470a331c5e5965e2a973905914f234d
3. 0xafaafe11f94e298cef803567d584ea48506bab161e69617284eb28a433ba8bcb
4. 0xbfdaa74c3a38232bfd558ecc432c083909fbb9ad93a3c3a7aa30d180be1591c4
5. 0x5ba2f5d8ffd8151bda6281cf78318dd9b942c4d75200701af28d6eebfd6a24ef
6. 0x3762ab7c736605caa40bbe4969ea197d560939991ef0a20d8411c55a3602f929
7. 0x4d313cec2af0c66dd76eea72213dc09f5b68cfd203f6438679f5e4e8269dcc83
8. 0xe55f0be76d0ba80506213bc9444e3ac94539169c5d15ee1bfedfa92780aae46e
9. 0x401650e78060172b587426fbc195d26513e5d12a9f5e8cfdc013fb5a70140421
10. 0x667c9edc7131bd388a1c1a039f7fddf0a4fbc13b4f1e7297601127a46cdc7292
11. 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
12. 0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
13. 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae