Evidence row 33925

What was observed

{
  "endpoints": [
    [
      "web",
      "https://basitalisandhu.github.io/dev-mcp-servers/"
    ]
  ],
  "name": "Regex Lab",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-18T17:56:26.08089Z",
        "status": "active",
        "statusChangedAt": "2026-10-18T17:56:26.08089Z",
        "updatedAt": "2026-10-18T17:56:26.08089Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Test regular expressions in a timeout-guarded worker, explain them, find catastrophic backtracking.",
      "name": "io.github.basitalisandhu/mcp-regex-lab",
      "packages": [
        {
          "identifier": "ghcr.io/basitalisandhu/mcp-regex-lab:0.2.2",
          "registryType": "oci",
          "runtimeHint": "docker",
          "transport": {
            "type": "stdio"
          }
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/regex-lab",
        "url": "https://github.com/basitalisandhu/dev-mcp-servers"
      },
      "title": "Regex Lab",
      "version": "0.2.2",
      "websiteUrl": "https://basitalisandhu.github.io/dev-mcp-servers/"
    }
  },
  "source": "mcp_registry",
  "summary": "Test regular expressions in a timeout-guarded worker, explain them, find catastrophic backtracking."
}

What the leaf hashes

{"body":"7f27e0dfa0909cb7d357f8f1cdbaf7bc2ed25c0df016dc9fac50ab7936137bb9","id":33925,"kind":"listing","method":"baseline/1","observed_us":1793025369699646,"prev":null,"subject":"mcp_registry:io.github.basitalisandhu/mcp-regex-lab","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. 0x4411dbd4aa9cc19f52d39525fc3ea403f92edde4a6d0352b830a204ac7c7c7c1
2. 0x147d753c0fb8c2bbe39b181b30fab1d2f24eeccc1162ef4900387922c05b5a29
3. 0xfb78bccb2f99f9ce9c198a088610321a3bd15365e8a543298afb802318727f69
4. 0xa04c54b527a75ec5e72205f2b63f7fd081181800960f08bd3bb4848d05aaa612
5. 0x429399f3b06cb3148acacd6d531a0b941775f79c73e151ff30c9c3cbf348f202
6. 0x26272af9c4db9943e095e87d57283c7ed8a0376d5fc3e1df93267015cb6b2403
7. 0x92ec3252a9f1caa9449f53aa0034eb8257d188aefaa7144e10174a76e245e7c0
8. 0x65683194bbaa775fec19af098e2949dc61ec27f657c1a6fbff21418049464838
9. 0x7548a06d81eec6f7a871b0f5e95a2a8ef0b7cb2bad9381bfc2356cf67b2e5859
10. 0x1dc09c8e92168e3a1cdf1a0e953982ca9207934a0dfce256095416cf4102fbce
11. 0x60b91f773fa3c91ef752edc3e72b14aec43590de73fb46a458b7100f8e74b4a7
12. 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae