Evidence row 49950

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-413/mcp"
    ]
  ],
  "name": "HTTP 413 payload-too-large",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-09T03:02:58.222853Z",
        "status": "active",
        "statusChangedAt": "2026-09-09T03:02:58.222853Z",
        "updatedAt": "2026-09-09T03:02:58.222853Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Meaning of HTTP 413.",
      "name": "io.github.sadri-dridi/http-413",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-413/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/sadri-dridi/named-mcp-utilities"
      },
      "title": "HTTP 413 payload-too-large",
      "version": "1.0.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Meaning of HTTP 413."
}

What the leaf hashes

{"body":"c49a4a386f4b09b6ecf9535d24fa4c0ef489ae94499eb1d1be2c1500b98d2e3d","id":49950,"kind":"listing","method":"baseline/1","observed_us":1793025414481505,"prev":null,"subject":"mcp_registry:io.github.sadri-dridi/http-413","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. 0xbb7f8aa8c9f5da1045a44888ca60203e87278cf851ad0155d3cb055874f4c9b9
2. 0x40461fe11acb58dec3f19a772bf1361f261aa5c65da24913297ff0de84cff2ee
3. 0xb5573c4848c7c6eef34184fd2e13ecafe64c4887da6867b21a7bb1a4d50b092e
4. 0x63d0c9d855626b86e4b8088ed9637096284b0d80994bb7044117a63e0ff3e5a2
5. 0x39ac03fecc9386a23f33bf71c8a2514272c53a957e7b07dfc59073a7d872998f
6. 0xf2891768da8e32c16063d8b99a19775c69908d2f108506c6a9e5413ae3642be4
7. 0xe37db9ebbd06489ead7fa6f933726430c25431097668610813a801ccd36ad04f
8. 0x730c78b9cb2a4d56bd94d406282ece7fd629d2c10aa24befe46338417d4d9076
9. 0xcf9d22f54d67e9a1722d0233cc204d07c1f88c4c088dd42604210ff6461190a4
10. 0xbae474fb988c71d46b488892998702dab209a22890a406d07014d6a096000d33
11. 0x66ed746e8b7893417ecf36cd9e7178eac8d5a36914238191ee21e14d3aa57d8d
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