Evidence row 795519

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://open-meteo.caseyjhand.com/mcp"
    ]
  ],
  "name": "io.github.cyanheads/open-meteo-mcp-server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T18:16:02.430378Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T18:16:02.430378Z",
        "updatedAt": "2026-10-28T18:16:02.430378Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Global weather via Open-Meteo: forecast, historical, marine, air quality, geocoding, elevation.",
      "name": "io.github.cyanheads/open-meteo-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": "duckdb",
              "description": "Canvas engine for openmeteo_get_forecast / openmeteo_get_historical / openmeteo_get_marine / openmeteo_get_air_quality / openmeteo_get_ensemble / openmeteo_get_flood / openmeteo_get_climate spillover. Default 'duckdb' enables DataCanvas and the dataframe_query / dataframe_describe tools. Set to 'none' to disable — those tools still bound an over-budget response to a preview with truncated: true, but nothing stages the rows they omit.",
              "format": "string",
              "name": "CANVAS_PROVIDER_TYPE"
            },
            {
              "default": "false",
              "description": "Set to 'true' to make openmeteo_dataframe_drop callable — it removes one staged table or view from a DataCanvas. Default 'false' lists the tool as disabled. Has no effect unless CANVAS_PROVIDER_TYPE=duckdb.",
              "format": "boolean",
              "name": "OPENMETEO_DATAFRAME_DROP_ENABLED"
            }
          ],
          "identifier": "@cyanheads/open-meteo-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.5.0"
        },
        {
          "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": "duckdb",
              "description": "Canvas engine for openmeteo_get_forecast / openmeteo_get_historical / openmeteo_get_marine / openmeteo_get_air_quality / openmeteo_get_ensemble / openmeteo_get_flood / openmeteo_get_climate spillover. Default 'duckdb' enables DataCanvas and the dataframe_query / dataframe_describe tools. Set to 'none' to disable — those tools still bound an over-budget response to a preview with truncated: true, but nothing stages the rows they omit.",
              "format": "string",
              "name": "CANVAS_PROVIDER_TYPE"
            },
            {
              "default": "false",
              "description": "Set to 'true' to make openmeteo_dataframe_drop callable — it removes one staged table or view from a DataCanvas. Default 'false' lists the tool as disabled. Has no effect unless CANVAS_PROVIDER_TYPE=duckdb.",
              "format": "boolean",
              "name": "OPENMETEO_DATAFRAME_DROP_ENABLED"
            }
          ],
          "identifier": "@cyanheads/open-meteo-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "streamable-http",
            "url": "http://localhost:3010/mcp"
          },
          "version": "0.5.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://open-meteo.caseyjhand.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/cyanheads/open-meteo-mcp-server"
      },
      "version": "0.5.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Global weather via Open-Meteo: forecast, historical, marine, air quality, geocoding, elevation."
}

What the leaf hashes

{"body":"6cfd0726dfb23955da65ca301ba98a304937afabc395ff6b4aa2873251a24b9b","id":795519,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793214745305740,"prev":35544,"subject":"mcp_registry:io.github.cyanheads/open-meteo-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. 0xb515c9c53abbd1a129ea57a15e05e22bd0dd53e72458061ae4176aa230de7c98
2. 0xab3697ddb82d0c81093c913b56eb0f6c63e3a044cf7fc2f4e52e2972b3d735e5
3. 0x694da47c04e14bc6ba8b6a1c8fcbab576e86072bd66f92f899a6aa31d65853ad
4. 0x96fbd64f36298b6694ccaaa37b035580be7ebb0834bcbf7eee5646244b7a0b8c
5. 0xad498eb84c35f77305109b948724868be7b62a3858a01e36e180a469defadfb4
6. 0x4bdf382bcc3f089dd41376a67bcf818f31d4d81370acbaee0010ebb7859cb74f
7. 0xdf2934ab67461ab28a7a1fcbc05e2f60a081dc49b8eb3e995b9c37415bbf7981
8. 0x6b887797cb1a114424fe88bae4b732a2af8eee0a68cd254f3967c6d76f73ce30
9. 0x3902d8b5c56c38000a67cfaebb1ec95a221bd8c0974f01050f5d4fe66a65d66c
10. 0x863777da66a3503effdb43fefa4e68177462dc9a80d0165786d306aeaf166686
11. 0xb1249a33dd602342763e7daaaae41e60187738f8f79e939d6e42717582e990fb
12. 0x64da769fb79162833498978a0e2340627917887f3343d2d19deba65538379daf
13. 0x2c930436acda0fc12ca6444c398732253201032fcc30928df4b856695845c63b
14. 0xad5ed8dc5ef9ee1ff21d19f603db7fd603ad90ffc13b68cf331a879eabb7b657
15. 0xcd8084fb60eb6be382a8750a344eb425404f5162e8ae3db9a15ef555a7942b85
16. 0x0f8977bd16865247451d1ee836b084081d3d0cd17d6a07353fad0c70393c7403
17. 0xe08e8bd91858a8a10c46ecde9c29a6288b960987303173c5e882afb46ce91fa0
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae