Evidence row 37234

What was observed

{
  "endpoints": [],
  "name": "webfetch",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-07-19T05:18:58.234727Z",
        "status": "active",
        "statusChangedAt": "2026-07-19T05:18:58.234727Z",
        "updatedAt": "2026-07-19T05:18:58.234727Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Self-hosted web search for LLM agents: search -> fetch -> rank pipeline with semantic caching",
      "name": "io.github.firish/webfetch",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Optional - adds Brave to the multi-engine fusion. DDG works with no keys at all.",
              "isSecret": true,
              "name": "BRAVE_API_KEY"
            },
            {
              "description": "Optional - adds Serper (Google results) to the multi-engine fusion.",
              "isSecret": true,
              "name": "SERPER_API_KEY"
            },
            {
              "description": "Optional - adds Tavily to the multi-engine fusion.",
              "isSecret": true,
              "name": "TAVILY_API_KEY"
            },
            {
              "description": "Optional - search strategy: multi (RRF fusion of available engines, default), fallback (priority failover), or a single engine name like ddg.",
              "name": "WEBFETCH_PROVIDER"
            }
          ],
          "identifier": "webfetch-llm",
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.3"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/firish/webfetch"
      },
      "title": "webfetch",
      "version": "0.1.3"
    }
  },
  "source": "mcp_registry",
  "summary": "Self-hosted web search for LLM agents: search -> fetch -> rank pipeline with semantic caching"
}

What the leaf hashes

{"body":"75caffeec63f35564b02a1ec1e10787dfe0e9dcef9647f8458e552d5081fde61","id":37234,"kind":"listing","method":"baseline/1","observed_us":1793025389603535,"prev":null,"subject":"mcp_registry:io.github.firish/webfetch","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. 0x5afb8b3fe9b361bbf8765f496f6ab67ba5d810c58b31a6e903f19786ca7866b0
2. 0x31ce05b25fac354f88b5bb99c490ccd8cc1ed3c0b02ffa10b56c326c65883a98
3. 0xedc71e3a2e2d16abf24ebb3478928ef04ef6aa5397f2b51ba17ef4fae2e4526e
4. 0xd7d6bbf55b051e41c0c8b67bafaa4ecf92c7ceab8e9978cdffa40bc97849fc58
5. 0x2f1b349b4452ca5df0ae02cdb0ab4a646025d970a9f45749092337881aa31dfd
6. 0x7393190f1534e672449b2a6c16533152d29238eb37ef0893ccfe150bf8805898
7. 0xa22e1714103b33c90aa044a94de0fb89147d35c5e985e277ffd2a3b2627c9aa7
8. 0x1c15b5a1bee48f3c2c1da6db4e6c822beb6ec268b29d87e0406d39978e1a0c84
9. 0xeafd2ccd6be081ef2723acf3fcea6de4a3d7f38a95baf55daaebabd2626a75d3
10. 0xd973b6f369dcc849706ecbfa8b548968c407c61af9d74df524ebe4f47698f455
11. 0x31cff173ca81a1fa9b4d9989ccba135fa83af9284e85748cedd858f7cc6cb7c0
12. 0xc4c7772b121e7eab8b40f10646f850453150d76d672e4926bf2534db20273157
13. 0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae