Evidence row 35470

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://cyanheads.caseyjhand.com/mcp"
    ]
  ],
  "name": "io.github.cyanheads/cyanheads-mcp-server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-24T19:18:24.173022Z",
        "status": "active",
        "statusChangedAt": "2026-10-24T19:18:24.173022Z",
        "updatedAt": "2026-10-24T19:18:24.173022Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.",
      "name": "io.github.cyanheads/cyanheads-mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "info",
              "description": "Minimum log level: debug, info, notice, warning, error.",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            },
            {
              "default": "https://caseyjhand.com/fleet.json",
              "description": "Remote fleet.json endpoint (schema v2 with baked embeddings).",
              "format": "string",
              "name": "CATALOG_URL"
            },
            {
              "default": "10000",
              "description": "Per-request timeout for fleet.json fetches: integer milliseconds from 1 to 2147483647.",
              "format": "string",
              "name": "CATALOG_FETCH_TIMEOUT_MS"
            },
            {
              "default": "3600",
              "description": "Background poll interval for fleet.json refreshes in seconds. 0 disables refresh; positive values up to 2147483.647 use the runtime's millisecond timer resolution.",
              "format": "string",
              "name": "CATALOG_REFRESH_SECONDS"
            },
            {
              "default": "Snowflake/snowflake-arctic-embed-m-v1.5",
              "description": "Hugging Face model id for query embedding. Must match fleet.json.embeddingModel.",
              "format": "string",
              "name": "EMBEDDING_MODEL_ID"
            },
            {
              "default": "0.3",
              "description": "Cosine similarity cutoff for cyanheads_search_catalog results. Must be within [0, 1].",
              "format": "string",
              "name": "SIMILARITY_FLOOR"
            }
          ],
          "identifier": "@cyanheads/cyanheads-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.4.5"
        },
        {
          "environmentVariables": [
            {
              "description": "Selects the HTTP transport.",
              "format": "string",
              "name": "MCP_TRANSPORT_TYPE",
              "value": "http"
            },
            {
              "default": "127.0.0.1",
              "description": "Hostname for the HTTP server.",
              "format": "string",
              "name": "MCP_HTTP_HOST"
            },
            {
              "default": "3010",
              "description": "Port to run the HTTP server on.",
              "format": "string",
              "name": "MCP_HTTP_PORT"
            },
            {
              "default": "/mcp",
              "description": "Endpoint path for the MCP server.",
              "format": "string",
              "name": "MCP_HTTP_ENDPOINT_PATH"
            },
            {
              "default": "none",
              "description": "Authentication mode: none, jwt, or oauth.",
              "format": "string",
              "name": "MCP_AUTH_MODE"
            },
            {
              "default": "info",
              "description": "Minimum log level: debug, info, notice, warning, error.",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            },
            {
              "default": "https://caseyjhand.com/fleet.json",
              "description": "Remote fleet.json endpoint (schema v2 with baked embeddings).",
              "format": "string",
              "name": "CATALOG_URL"
            },
            {
              "default": "10000",
              "description": "Per-request timeout for fleet.json fetches: integer milliseconds from 1 to 2147483647.",
              "format": "string",
              "name": "CATALOG_FETCH_TIMEOUT_MS"
            },
            {
              "default": "3600",
              "description": "Background poll interval for fleet.json refreshes in seconds. 0 disables refresh; positive values up to 2147483.647 use the runtime's millisecond timer resolution.",
              "format": "string",
              "name": "CATALOG_REFRESH_SECONDS"
            },
            {
              "default": "Snowflake/snowflake-arctic-embed-m-v1.5",
              "description": "Hugging Face model id for query embedding. Must match fleet.json.embeddingModel.",
              "format": "string",
              "name": "EMBEDDING_MODEL_ID"
            },
            {
              "default": "0.3",
              "description": "Cosine similarity cutoff for cyanheads_search_catalog results. Must be within [0, 1].",
              "format": "string",
              "name": "SIMILARITY_FLOOR"
            }
          ],
          "identifier": "@cyanheads/cyanheads-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "streamable-http",
            "url": "http://localhost:3010/mcp"
          },
          "version": "0.4.5"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://cyanheads.caseyjhand.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/cyanheads/cyanheads-mcp-server"
      },
      "version": "0.4.5"
    }
  },
  "source": "mcp_registry",
  "summary": "Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets."
}

What the leaf hashes

{"body":"ab49a034111f402514097eb2c6d2e2d1b6b20d4de34ea33693febc8130f3f8c7","id":35470,"kind":"listing","method":"baseline/1","observed_us":1793025373082128,"prev":null,"subject":"mcp_registry:io.github.cyanheads/cyanheads-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. 0x958a1d763851b69277651b2622242439717a6e553bf57738f0c940c0fc7e0d97
2. 0xbb36f5aac47204d141635020dfcee8fe5d08304ec663026351772e940d8f595b
3. 0x074bb219d221e46ba0ef6aff7707851ee00f217c1821f03909fb32adab94fe96
4. 0xc727062cbd8401985ffba53f4da276c142b6040d8ea2388a4874a3e19d9fa5f9
5. 0xef9aa1fc6ff386b5d8ccbb572057f33550dff752e33bd0fffc740b44288aa8a6
6. 0x5ff808e888515a5a3b62d010c726ebf18b3fef911d625345bc4f7ff16d3794e8
7. 0x2b438784928bbc9d107995d97746b7c4d1a58369b624c2a02aa90f1e831afb9f
8. 0xcceafd6d3bcecbc6ac168587ce3fd74d4183a17113c7862ac077fd944fbb33ca
9. 0xeaa83a242ff2978695e9e1cfc4a7b501fae86b1985270b23154a23a14845e6f3
10. 0x93fdf56e11ca55e7de8840750dc407c579d998851eeba81adf9b02fc56cf0786
11. 0x410382a743218ee37cce3087a0bdbcb3f5a456fc78a975bb16e175d9ceedd913
12. 0x12169ac86722058ecf46a1b83c56e8b21899ab108a12c5a4429da74c5d191294
13. 0xb314422bc93e7f1c0b706c67f5fff96c5ddf74934bb2fe8ab6291ae016907e37
14. 0x49062da782c4f73855ddd5fdd51840749f928b5f17d1ce75ac50f2d829104e72
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae