Evidence row 47838

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://polygraph.so/api/mcp"
    ],
    [
      "web",
      "https://polygraph.so/"
    ]
  ],
  "name": "io.github.polygraphso/litmus",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-07-20T15:52:22.440934Z",
        "status": "active",
        "statusChangedAt": "2026-07-20T15:52:22.440934Z",
        "updatedAt": "2026-07-20T15:52:22.440934Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.",
      "name": "io.github.polygraphso/litmus",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "https://polygraph.so",
              "description": "Base URL for published-grade lookups (check_server, list_servers, request_grade) and attestation resolution.",
              "name": "POLYGRAPH_API_URL"
            },
            {
              "default": "base",
              "description": "Which network to read attestations from: 'base' (mainnet, default) or 'base-sepolia' (testnet).",
              "name": "NEXT_PUBLIC_POLYGRAPH_NETWORK"
            }
          ],
          "identifier": "@polygraphso/litmus",
          "packageArguments": [
            {
              "type": "positional",
              "value": "polygraphso-litmus-mcp"
            }
          ],
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.36.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://polygraph.so/api/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/polygraphso/litmus"
      },
      "version": "0.36.0",
      "websiteUrl": "https://polygraph.so"
    }
  },
  "source": "mcp_registry",
  "summary": "Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only."
}

What the leaf hashes

{"body":"130d03e4c36958352aae07fab3bd846cd65628a230d385cb37428826e29aef3a","id":47838,"kind":"listing","method":"baseline/1","observed_us":1793025410809771,"prev":null,"subject":"mcp_registry:io.github.polygraphso/litmus","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. 0x976eaacbb3670771d51202a6ddad711c3b9fd5178e8c39897b3267baab3ea74e
2. 0xb802d82982a25f4ee119df34b7be5f26bc8a55004710afbeb69def0a185a0b4d
3. 0xd7b3db47b5fdc38a6d855126fc725eec15d78e26eab003590f9bcc6edf0920f0
4. 0x01a25e1f6dfeb7f4d2417205c6158ae383693ebafc77428577185e26ce689f34
5. 0x0d5a74aa9b8145e369c87cea85e38c34b750bca43a3d9830fd1860810409282e
6. 0x5aacd6d2d5f5ee13570313dfe4372d561f4d6b34bbdd710eebdbb5a07009afb9
7. 0x32a440a9bc429a83600225cb851ff8eee4717691ee370442b30080ec08fd6830
8. 0xc580804f623903bf308f2e4fbe7e832f869f5a7bb3bdc5a3335ce590fc78a88d
9. 0x35eac46db8483d69cfaaaac2bd48acc2c02f3fa969d9d79ef5005146dbe11c26
10. 0xdc53c89cce7091adf601946635a4d64062fe6855a2f46a4967374baab5240ceb
11. 0x33109041c3d120f5b9ce2c3270a8fc409acfab4e749a0ff42fa0744354f87c17
12. 0xd43b73151a0c2d9a61f2ae73ed148938b0e6b05c81197f7eebbf95dba38a7004
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