addrbookFor publishers
← The evidence ledger

Evidence row 17466

Observed , by baseline/1.

Kind
listing
About
source_record mcp_registry:com.matterfact/matterfact
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
d9507ef72430291bc684d69174574c4d534c798bd5f076e6dda3b5293a3f3016
Leaf
0xf1b98bb023a86f431fe496f9f1ca3330adbcf4c2a8630d6d206608a0cca96625

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.matterfact.com/mcp"
    ],
    [
      "web",
      "https://www.matterfact.com/"
    ]
  ],
  "name": "matterfact",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-06-16T01:54:17.846148Z",
        "status": "active",
        "statusChangedAt": "2026-06-16T01:54:17.846148Z",
        "updatedAt": "2026-06-16T01:54:17.846148Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Investment research superagent: podcasts, SEC filings, and no-code research pipelines.",
      "name": "com.matterfact/matterfact",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.matterfact.com/mcp"
        }
      ],
      "title": "matterfact",
      "version": "0.1.0",
      "websiteUrl": "https://www.matterfact.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Investment research superagent: podcasts, SEC filings, and no-code research pipelines."
}

What the leaf hashes

{"body":"d9507ef72430291bc684d69174574c4d534c798bd5f076e6dda3b5293a3f3016","id":17466,"kind":"listing","method":"baseline/1","observed_us":1793025326615262,"prev":null,"subject":"mcp_registry:com.matterfact/matterfact","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0xf1b9f5dab96bc8fd5fe6e8fcc7520190c3e62b79a611abe2cf65bd6ecb562ead
  2. 0x52a431aebb759751cf1f40c5bd6120826f4dea367a1fed829298e316cfbc14b6
  3. 0x2d285d00fa7f9230f16c58eeb4c7f02a576f2ae11761310cf5df926bad780440
  4. 0x564cc51f859bd553a723b19b38ff3ceb1b6336a6b3b1cc29416c9d51231f4e4f
  5. 0x43c6a526a8e1775600b385fdef5e649966fc47f50d2127b3b7dea1ce917b2960
  6. 0xa0db34d1f283a60e431d8709dad6a47e73d5a6ac3012a11e303940731060828b
  7. 0x060395dbb80931e77d693a39fc265d39a1f9855d3c866f2a8753c96917285503
  8. 0x2ef4905ec82315333be7795c2bed8bd31c5485f8fc19e79bd489855680148b5d
  9. 0xc37de4d8b780d20d123ad1c1d0557ff6c00c3d9712af9a6d174f82daddd119ff
  10. 0xf1b1e345d12761d4f958513709ac603bce3fca8b3fc610e50e697cf7c680564e
  11. 0x3fbb508bb3373d829808c4b964e49bf52f1a8877acba747d2b92b5eac81e6259
  12. 0x4d2e94451b5ffc570a23dee9d1525bc305f1009994ffe23d8e2e7d45c60f6209
  13. 0xa26f0437cba4d7d64f1cf98bf4f490e1ebb6f66a5e2331537b7ba8b3061084e0
  14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
  15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
  16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
  17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON