Evidence row 21073

What was observed

{
  "endpoints": [
    [
      "web",
      "https://the13f.com/integrations/mcp.html"
    ]
  ],
  "name": "com.the13f/mcp",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-22T11:00:59.234103Z",
        "status": "active",
        "statusChangedAt": "2026-10-22T11:00:59.234103Z",
        "updatedAt": "2026-10-22T11:00:59.234103Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Institutional 13F intelligence: 8,600+ managers, holdings, changes, ownership, overlap and flows.",
      "name": "com.the13f/mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Free pf13f_ key from https://the13f.com/integrations/. 100 calls/day, no credit card. Without it, every tool returns a structured free-signup-required response with the signup URL.",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "THE13F_API_KEY"
            },
            {
              "default": "https://api.the13f.com",
              "description": "Override API base URL. Defaults to https://api.the13f.com. Used for local development against a running copy of the13f's gui_server.",
              "format": "string",
              "name": "THE13F_API_BASE_URL"
            },
            {
              "default": "30",
              "description": "Per-request HTTP timeout in seconds. Minimum 5.",
              "format": "string",
              "name": "THE13F_MCP_TIMEOUT"
            },
            {
              "default": "on",
              "description": "Set to off to stop the server telling The 13F when it fails on your computer (versions, operating system, place and error message only).",
              "format": "string",
              "name": "THE13F_MCP_REPORTS"
            }
          ],
          "identifier": "the13f-mcp",
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.5.0"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pickelfintech/the13f-mcp"
      },
      "version": "0.5.0",
      "websiteUrl": "https://the13f.com/integrations/mcp.html"
    }
  },
  "source": "mcp_registry",
  "summary": "Institutional 13F intelligence: 8,600+ managers, holdings, changes, ownership, overlap and flows."
}

What the leaf hashes

{"body":"5135277b6bafcde892db2c901ba45d875814f6e8947c092563b8ee5b20c4a4b2","id":21073,"kind":"listing","method":"baseline/1","observed_us":1793025339805907,"prev":null,"subject":"mcp_registry:com.the13f/mcp","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. 0xc65aedf5b4a2cd45627203759a062c256b4c2c629d0067f9f718e34bcbfe1ed7
2. 0x6e0a62cf9fabff3cb83a20c6820fa37d386cb311713c5a4136978cb7c61da308
3. 0x8d46fae63e8231089dbe4e7d05767c33e4a3989108dc43a394fde53481b517d0
4. 0x0b8638a10be164c3800642da8dea8a17048b0b23c4eaf9f19d1a48477249eb91
5. 0x284970c7c613f2711ca6804ff3e7a9cd26751d26ee6458242d665351426463ee
6. 0x1d5a649cbc7dc0604c7446be9ec01781786f3e47a28b29b24efcea88db58d072
7. 0xf22153e084f66d2e96b344fe9956ec5bc2337ea47245566a5a87bcc8c28d17d6
8. 0x277ee33f5a53cc1d9400a7a6777960402a565fc52dea8cc2c1b79b280c1e686f
9. 0x79b4b6922735bbc24ec16025e5520fde393f123baf39d59a4efed8975432b7ce
10. 0x77833f2057f63ba21890736f404da58878f6b36427cb005b3298dae4d3753b74
11. 0xcf79908a8c2a5f4d274583b3f75e7aa2d8b29ffc384541425852fe761ae31d56
12. 0x9d99c5dad23613921cdfabc849c2dd3c97729992eaa05c4dab5e86e83ed6d220
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae