Evidence row 783764

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": "2026-10-28T17:29:55.992209Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T17:29:55.992209Z",
        "updatedAt": "2026-10-28T17:29:55.992209Z"
      }
    },
    "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": "0.6.0"
        },
        {
          "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": "0.6.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://hn.caseyjhand.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/cyanheads/hn-mcp-server"
      },
      "version": "0.6.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Browse Hacker News feeds, threads, and user profiles with full-text search."
}

What the leaf hashes

{"body":"2d62cd3082a943acae0101f1fce465d08ecab9e2c4eb0216be920e4a3ffdd829","id":783764,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793211065164392,"prev":35510,"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 2026-10-28 (231336 rows).

1. 0xfa86551df097b344c1679bccabc3f2420ce592005b7405f8247513a61eec2ce9
2. 0x20b2697bfb8405b741c8f2dd55233dd959f36f8ddf710bbb930c871719857264
3. 0x97a6b91a56f4d1a4b4bbad080a59ce7f6698179d021fa44e72ca688dcc5a8086
4. 0xc49b1a3990974bf9016ad2b6f55cd3ae1842e1dfd4c4d036f9abca2490495180
5. 0xbc86e3b3c1a18b1762d2d6929aafd720fac0d7acf2ebccfcc06961682fb39473
6. 0x982bd50d7bf6e38d4dcf268169d93bf9debbc8324b707471a80b1bf0c2e1be83
7. 0x90b0c8ac06f277999b97490481f57b5767a6ddc3a83ef2819faba6ebe51f5b81
8. 0x0be7deca041b42c90eec05836b5de316bf2c207a957a0555eebe0128d7fe0ab3
9. 0x0e8125844c20c11c5ccbee1c03bb0b375795bf1c884574883be1fb523dbad307
10. 0x7816103f20acd21cfd6c697891c76c37769c91c873043a207b677effb4dbe5c8
11. 0x97741f9ef4523a3711e2a78df0587f8696085ffd148a0e05d0e5ca640c26bbba
12. 0x81042b5ac08a4e01f6d1d23288e90719c81d9cb6f1dbaac97576a03889cac0b1
13. 0x031414b62820da6d87dd5b838d8e9cefadd7e6a5349f46856af4f1ce75c8e6af
14. 0xb807f07a34f6739a39ed03265a4a5a9c71ac45230c37dc44fd915cc90aa287db
15. 0x33bfb51cb957137510d8a1502cd50241c4c0982e2741290f3b8f2d2b1e69de70
16. 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
17. 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae