Evidence row 49957

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-428/mcp"
    ]
  ],
  "name": "HTTP 428 precondition-required",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-09T03:02:59.495124Z",
        "status": "active",
        "statusChangedAt": "2026-09-09T03:02:59.495124Z",
        "updatedAt": "2026-09-09T03:02:59.495124Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Meaning of HTTP 428.",
      "name": "io.github.sadri-dridi/http-428",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-428/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/sadri-dridi/named-mcp-utilities"
      },
      "title": "HTTP 428 precondition-required",
      "version": "1.0.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Meaning of HTTP 428."
}

What the leaf hashes

{"body":"4045fa2b8cb931c607dc7f16a511178865ad3c4f58e202d1b62d170b0cfb5730","id":49957,"kind":"listing","method":"baseline/1","observed_us":1793025414489897,"prev":null,"subject":"mcp_registry:io.github.sadri-dridi/http-428","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. 0x770884baa7c6bb5d6c56adcdb71d90e820f4201a40d0028e002c37720b4830e3
2. 0x1ad72d877d8761ca134f61605a6415875ef22caf65f9e7b57e7a906dfbd68106
3. 0x93dd1f72bb41eddad364a08f09be5a066d6d4ed9546b2624ef72be792e714cfc
4. 0x9ec39961c77721f4efafdc0bbb6ad452a7dd28f6ebbb0a9d3da8f3f63f6ce820
5. 0xccf6a8016ab67412680ca392192570f7e585302d2671fe1da463c090d1ec5d95
6. 0x389cea6dd91f1b6747e640d09bb7b9811939b1ab73244b3072440a96a35d366f
7. 0xac5caadd18a048db98ea90f10f70cff660053c727043c6778ab5153ef671334f
8. 0x11267a0936fbd2eadea7ee2f393a192127d10666fee437048a4dfc8858adacb5
9. 0x6cd3debb5a65c2dafba9939b6b9fc1abd3a727f40687be43bc8d2d62366be83b
10. 0xb543a7014a7da7ab1677250ea2e4cf5246b237487bd67575741c51bad8f72af0
11. 0x2b0f6f9a9d5201404fd0cd99316c4ea1c2b3853278de26cb244fc2433c8b6831
12. 0x8fdfac9874f184de58b63efbdab0fc27674958d741146d02f58b04d3c559cabf
13. 0xdef3cab0b4070d8ad7f4f91288da4881d19789f131b1b353621df79df04a0617
14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae