Evidence row 35493

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://fcc-spectrum.caseyjhand.com/mcp"
    ]
  ],
  "name": "fcc-spectrum-mcp-server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T07:07:41.314345Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T07:07:41.314345Z",
        "updatedAt": "2026-10-26T07:07:41.314345Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Search FCC radio licenses, find nearby licensed sites, and see who is licensed on a frequency.",
      "name": "io.github.cyanheads/fcc-spectrum-mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "info",
              "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            },
            {
              "default": ".mirror/fcc-uls",
              "description": "Directory for the local ULS index generations, current.json, the ingest lock, and temp zips. A relative path resolves against the working directory, so set an absolute path.",
              "format": "string",
              "name": "FCC_SPECTRUM_MIRROR_DIR"
            },
            {
              "default": "LMpriv,LMcomm,LMbcast,micro,cell,market,paging,coast,mdsitfs,amat",
              "description": "Comma list of weekly ULS service groups to index, case-insensitive. Opt-in: gmrs, ship, aircr.",
              "format": "string",
              "name": "FCC_SPECTRUM_SERVICES"
            },
            {
              "default": "true",
              "description": "Redact individual licensees and trustee names and exclude individuals from name search. Only false/0/no/off disables it.",
              "format": "string",
              "name": "FCC_SPECTRUM_REDACT_INDIVIDUALS"
            },
            {
              "default": "https://data.fcc.gov/download/pub/uls",
              "description": "ULS bulk file host root, read at ingest time only.",
              "format": "string",
              "name": "FCC_SPECTRUM_BASE_URL"
            }
          ],
          "identifier": "@cyanheads/fcc-spectrum-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.3.0"
        },
        {
          "environmentVariables": [
            {
              "description": "Selects the HTTP transport.",
              "format": "string",
              "name": "MCP_TRANSPORT_TYPE",
              "value": "http"
            },
            {
              "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', 'warn').",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            },
            {
              "default": ".mirror/fcc-uls",
              "description": "Directory for the local ULS index generations, current.json, the ingest lock, and temp zips. A relative path resolves against the working directory, so set an absolute path.",
              "format": "string",
              "name": "FCC_SPECTRUM_MIRROR_DIR"
            },
            {
              "default": "LMpriv,LMcomm,LMbcast,micro,cell,market,paging,coast,mdsitfs,amat",
              "description": "Comma list of weekly ULS service groups to index, case-insensitive. Opt-in: gmrs, ship, aircr.",
              "format": "string",
              "name": "FCC_SPECTRUM_SERVICES"
            },
            {
              "default": "true",
              "description": "Redact individual licensees and trustee names and exclude individuals from name search. Only false/0/no/off disables it.",
              "format": "string",
              "name": "FCC_SPECTRUM_REDACT_INDIVIDUALS"
            },
            {
              "default": "https://data.fcc.gov/download/pub/uls",
              "description": "ULS bulk file host root, read at ingest time only.",
              "format": "string",
              "name": "FCC_SPECTRUM_BASE_URL"
            }
          ],
          "identifier": "@cyanheads/fcc-spectrum-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "streamable-http",
            "url": "http://localhost:3010/mcp"
          },
          "version": "0.3.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://fcc-spectrum.caseyjhand.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/cyanheads/fcc-spectrum-mcp-server"
      },
      "title": "fcc-spectrum-mcp-server",
      "version": "0.3.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Search FCC radio licenses, find nearby licensed sites, and see who is licensed on a frequency."
}

What the leaf hashes

{"body":"d58266564bb64917d10b2d6e6c8f7f3d172ba1938db44dd8c9d3ed5d7a76e7f2","id":35493,"kind":"listing","method":"baseline/1","observed_us":1793025373121628,"prev":null,"subject":"mcp_registry:io.github.cyanheads/fcc-spectrum-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. 0x7ff888a37cb86464cdbaebc6a02451af035ca6a2cfe932a8b5138b5324f8f44a
2. 0xe704f0b48a645c9e705eb3244740f212987eb503d919aeeb51b56eb1cd9099c9
3. 0x4182ee2ceb9a3d3dd1772ea75b616fc1d25c875ca9625aa5373be2fa1383efae
4. 0xbff73122fc996b866ba34b5713208236f0b0fba4930ddaf0f25f3dde8ef583ed
5. 0x6f421ccb66bbf1f31b672f7a57e60ef566cbe597a925f21eb6de238e5ede76e5
6. 0x665bb4a5197d846b4d74a733a55750636bd40cf86d23c375eb0f8f791decdd61
7. 0x7575a54419bb15aecd4dc16e84c51be5477674bf7bf236fcb010f81c309cda0a
8. 0x9a929f4e1d7836dbaa153036a8c5e6bc21985ecb75d20ef14ee60f16d30bab0c
9. 0x446341aac5252a350e04f43c2a957a932bda3f6c5cf9e71dc0f70c46c81ffbdb
10. 0x4ac6e7b8710a19dd69c1ac61f6e5bc5b40663b9f632b7d8a1515e0c4fc86564d
11. 0x94ff6a1838bb06ac09899310e3d37518c2cdbae79f32eb90e1b61eb995aed881
12. 0xb9c4107c5cbaf0844324e5ba287c90e0643bb7b9e48e7877adda9372132cf0ea
13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae