Evidence row 55891

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://lenz.io/mcp"
    ],
    [
      "web",
      "https://lenz.io/integrations/mcp-server?utm_source=mcp-registry&utm_medium=directory"
    ]
  ],
  "name": "Lenz Fact-Check",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-06T07:50:50.001861Z",
        "status": "active",
        "statusChangedAt": "2026-10-06T07:50:50.001861Z",
        "updatedAt": "2026-10-06T07:50:50.001861Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://lenz.io/lenz-wordmark-512.png",
          "theme": "light"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://lenz.io/lenz-wordmark-dark-512.png",
          "theme": "dark"
        }
      ],
      "name": "io.lenz/fact-check",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://lenz.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/lenzhq/lenz-mcp"
      },
      "title": "Lenz Fact-Check",
      "version": "1.1.1",
      "websiteUrl": "https://lenz.io/integrations/mcp-server?utm_source=mcp-registry&utm_medium=directory"
    }
  },
  "source": "mcp_registry",
  "summary": "Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources."
}

What the leaf hashes

{"body":"0135f09e0a34973a6e762a45a893d4910835c89b39e5d9af8d1c97593a3ec622","id":55891,"kind":"listing","method":"baseline/1","observed_us":1793025436255844,"prev":null,"subject":"mcp_registry:io.lenz/fact-check","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. 0xbc558a3182a60f62d1adfc18ab951a8f85f9cccea1ffb73ffa2aeade0c5f1d31
2. 0x41e3710fecf34c41fb527013b21d055135936488732e88d47a65365c077efeed
3. 0xa10c419b817c591a3d37c76fb6b22449964a1c2039bc42f0ac5d4c4a70c14ffe
4. 0x22a73086b22e508dceceb6cdc641a11226cefcd96f329c3a317835ce2ea0ff0a
5. 0x79b28c29f9fce47baa4da00f048279c2edbd282fb53e4dc8371565caf4740921
6. 0x1f2b99914de51a90eb19b9868057b40b9909743212b78cc2d0855d2aa28baad5
7. 0xefe413c5255d470d0ec9f77c9fc50e1e65d0081f51efb5cbd7b9b5b15f8c6d0d
8. 0x984112d6a2e628372940243dc67a235d5ee73e05f2f06fb345ba1434e4272946
9. 0x1852b4df43bbd0649889a2815cea70f15d47e0cdc89925b91f712a32a148db2c
10. 0x77d8c452cf2d4fc029b3a8d79e0beb037c1a055947ce64263cb5779b11b5cd76
11. 0x747da36f7781b2b20c53f35968bf28ef3b43376581ce1ca8987f1d7a2a347e61
12. 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae