Evidence row 22865

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.heystack.dev/mcp"
    ],
    [
      "web",
      "https://heystack.dev/docs/mcp"
    ]
  ],
  "name": "Heystack",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-17T08:01:13.61265Z",
        "status": "active",
        "statusChangedAt": "2026-09-17T08:01:13.61265Z",
        "updatedAt": "2026-09-17T08:01:13.61265Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "tools": 54,
          "toolsets": "Append ?toolsets=core,manage,team,advanced (or all) to the URL; ?readonly=true hides write tools."
        }
      },
      "description": "Observability for AI apps: investigate traces, logs, LLM usage, replays and crashes; manage alerts.",
      "name": "dev.heystack/heystack",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer <Heystack personal access token> (optional — OAuth via Clerk is used when omitted)",
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://mcp.heystack.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/heystack-hq/heystack-plugins"
      },
      "title": "Heystack",
      "version": "0.1.0",
      "websiteUrl": "https://heystack.dev/docs/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Observability for AI apps: investigate traces, logs, LLM usage, replays and crashes; manage alerts."
}

What the leaf hashes

{"body":"8087daf31b156bf7233286581477e6a31da80bd6a8f547e9cc7373677aa480b5","id":22865,"kind":"listing","method":"baseline/1","observed_us":1793025349778313,"prev":null,"subject":"mcp_registry:dev.heystack/heystack","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. 0x3d3750250b005159346f5cd70fb916f9ee0a5edb44f91bdb53a31a50027771be
2. 0x1f94b7a65dde3b591a7e531f644939afc2ce0f4c0601f33f09e155f6b392ed4c
3. 0x0e4296742048d44a897a4eda4a2f9531dad3b83ed8a7e64a2c34504216e204ff
4. 0x41de533e7031e19441de52ef94b56d20b431f8dca7bc35a84d6aefb1af534c6b
5. 0x6a2e206cb9c6a1e5094cc828d4862d1ea7dfdd81b9f8277239ecdf16e67d9918
6. 0xbe9c338d6ab11f47f39461db8f107c3463ab15b40e21070a199eefc84212d6b3
7. 0x561293148ad83b15abd38494329f3e864f001c0e8e8ef4ba01684b46bb21ae10
8. 0xb20f0d706ec7b03694b00e1c2edc809f92e90c40a0fd5dd2474bf8cb4a77a2f4
9. 0x7ed5307b5f1fd6387adb988ca74889a8053f81f17a453933322c228bf44a58f4
10. 0xae66718d5a1d562c4f24366c92ce0f9cda65031931b8a838a2d71f1f81f474ea
11. 0xd7dd18a37a5bb07e81a8083d8d1469e052ceebb2814b00f5a8d4f4cd181a5108
12. 0xd04df0f7f3be4d014b4cea8172ada286fbcf5bcb32ae1b281704fd75627b661b
13. 0x215f432600b78f2e7c9629cd10ce6ce4b7f3351b0b71f3f2c7dcb8e650f6cd63
14. 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae