Evidence row 58958

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://fourzerotwo.si/mcp/v/research"
    ],
    [
      "web",
      "https://fourzerotwo.si/"
    ]
  ],
  "name": "Research papers",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-11T18:28:35.005367Z",
        "status": "active",
        "statusChangedAt": "2026-10-11T18:28:35.005367Z",
        "updatedAt": "2026-10-11T18:28:35.005367Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "arXiv, PubMed, Crossref and OpenAlex scholarly metadata.",
      "name": "si.fourzerotwo/research",
      "remotes": [
        {
          "headers": [
            {
              "description": "Optional free key from https://fourzerotwo.si/free (raises the free allowance from 100 to 500 calls/day)",
              "isSecret": true,
              "name": "X-API-Key"
            }
          ],
          "type": "streamable-http",
          "url": "https://fourzerotwo.si/mcp/v/research"
        }
      ],
      "title": "Research papers",
      "version": "1.0.1",
      "websiteUrl": "https://fourzerotwo.si"
    }
  },
  "source": "mcp_registry",
  "summary": "arXiv, PubMed, Crossref and OpenAlex scholarly metadata."
}

What the leaf hashes

{"body":"63804170dd3bb63165a6e75cbb04778cf96778e321cd47f2594d1dc652491d7b","id":58958,"kind":"listing","method":"baseline/1","observed_us":1793025445591848,"prev":null,"subject":"mcp_registry:si.fourzerotwo/research","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. 0xe754d8dcbf144424cb8f0500c59d8054742a84bb07bf7e26c99bc2cf562c290e
2. 0x1e2df4aa067a9053b0df1a34584c5f4edbe2f48e4f08dd63b290c96714d73fea
3. 0x91c4dfd81119d7b2a9d95ab14b7f561d73046aefba466bffce29fc0e12151aab
4. 0x026c53638bc456454ea4389f7adb34c5875a168293a9e47fad27396307c7a8aa
5. 0xc86daa5b327f25f078c1425cf86290b986548eb705c3bf0dec55af54e961a1be
6. 0xa1804edb8dd7e2842406bd1492dc1faaaf17e38938e9a52f856059bef0cda092
7. 0x07257184309710670fbd25da45ab86cee6af3a535ca55b517534ca4e8be76f58
8. 0x49fc16891648636612ed5bc25f23ee5c444b2c5d126d8c4c2c8c9e21606fce2b
9. 0x7ac3b0988445398aa46dab8c66370eba9af298b98f0fbd41fe2bb0ed965c3be1
10. 0x7deeb175e21dc795de5c6a6747c18815aec2ac086521557682cc9d301183bd2e
11. 0x59e039ae04bb13d1c4f6760e5371456ed0590ed6a27668ea3df8a519b5fd4655
12. 0xb866b513dd861c870688f5d1a8e434b170eaa2fafb0961d6a674d452b8e58381
13. 0xafcc1fe54cfe00a3a1de33df127340075f22433bb89848bbc81499cd7aca5b2b
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae