Evidence row 37030

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.facebook.com/devtools"
    ]
  ],
  "name": "Meta Social Technologies MCP",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-11T21:53:35.171063Z",
        "status": "active",
        "statusChangedAt": "2026-10-11T21:53:35.171063Z",
        "updatedAt": "2026-10-11T21:53:35.171063Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Manage Meta apps: creation, configuration, webhooks, permissions, compliance, and App Review.",
      "name": "io.github.facebook/devtools",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.facebook.com/devtools"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/facebook/agentic-tools"
      },
      "title": "Meta Social Technologies MCP",
      "version": "1.0.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Manage Meta apps: creation, configuration, webhooks, permissions, compliance, and App Review."
}

What the leaf hashes

{"body":"913d3ac27233aa3d2c1afb3db3cec10bd3f018739b34f6426e8b95a14910963f","id":37030,"kind":"listing","method":"baseline/1","observed_us":1793025389408090,"prev":null,"subject":"mcp_registry:io.github.facebook/devtools","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. 0x3d573c664ea280f237f1834b317a086a839a972d0c5c97aef158014272d0c923
2. 0x5b5a83f275cb3d515658b6574d5a0086fdb269e8db5f8c61d6a2a0a1648042fa
3. 0xbbb1c897c36ecb61ebf2932dfd40a7ebeead285a4db50a9b2a8e0b0058389d85
4. 0xdf2ea5cab77ab95ca93810b7cc0165aecba0c1bc09d23a1c0e672375a2b23aec
5. 0xdd3d38307aa4721dbda797a121a8292c0949e9d7e7c910ecec3d705384c5e019
6. 0x68937923060123a8130b7073a1100e84a53dc0dd7f45cbe6a898014549e9cd64
7. 0x28b55b0c86c7c2808deddb56c13ece47aff90a5e964558b303665f36200b4a5f
8. 0x3a267d8797d327fc66f4c0727956b7e47caee018ed8bfd6ee688dd7341ad6191
9. 0xa92d7be66dafa41de83cde2ea4513dcc1222c5a1b23abdfacb088c81170a5989
10. 0x46e925b5e825b92710b39bef7e87d883d131661462048f287a27325752df91f3
11. 0xc900cc76dc3702a3e60eaef3577f119464a6a90c3e2b646253f2ba09c089de97
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