Evidence row 49100

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-discovery-placement/mcp"
    ],
    [
      "web",
      "https://agent-ads-production-9f45.up.railway.app/"
    ]
  ],
  "name": "Agent Discovery Placement",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-23T20:54:58.67383Z",
        "status": "active",
        "statusChangedAt": "2026-09-23T20:54:58.67383Z",
        "updatedAt": "2026-09-23T20:54:58.67383Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Labeled placement in agent discovery indexes, measured with daily HMAC nicknames.",
      "name": "io.github.sadri-dridi/agent-discovery-placement",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-discovery-placement/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "agent-ads/agent-discovery-placement",
        "url": "https://github.com/sadri-dridi/named-mcp-utilities"
      },
      "title": "Agent Discovery Placement",
      "version": "1.0.0",
      "websiteUrl": "https://agent-ads-production-9f45.up.railway.app/"
    }
  },
  "source": "mcp_registry",
  "summary": "Labeled placement in agent discovery indexes, measured with daily HMAC nicknames."
}

What the leaf hashes

{"body":"35207c3d71d7db6a409dbeab224c810db8192f64da9248a622651417f4d2aaed","id":49100,"kind":"listing","method":"baseline/1","observed_us":1793025413214148,"prev":null,"subject":"mcp_registry:io.github.sadri-dridi/agent-discovery-placement","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. 0x5c79dd641d54bd3a6bd326698ff887244a376fa716c94dacf4130797d2bcf96b
2. 0x1aba2ea572d83714ccade875928867df65a6b2f8a9168d4c463cae41d9205fb4
3. 0xc8d4290296575ea15d0b3a03b17f7b2cdf8ae49c33f3016304ed26f615549469
4. 0xded2d79e3b6ff5a3f9858fe7bd0b046ea2a0e2046a38ba5e86eaacb57d78911b
5. 0x08584f48cd3a14955098b66120a14427a94ec64af7f7ffbfa2f23cc7cf5eb479
6. 0x3800a17fc0593e9a1271238eec3e925054a98e279a7eecb9faeb0529ec3963f2
7. 0x3e0a30d972618897e4eb59aae4d45194d3c6644144e7b4b3dc44f171d6a3e612
8. 0x9ef5c5467eba2fd02489e4291441b81d64cca1b78170da21afacb2bd0da6c1c9
9. 0x13220318983947825aa347852018f28bc5d9dfa7ace868b9d65e7d6b238a6e1a
10. 0xa8ffcda5ce803e6416e11aeb68f113e4b6fd6bc8a9d891a50b9f815e09eedb9f
11. 0xc6d2784f07e8c139bf8f780cbae14d0deadd031c795b132568f433e9f582c7d3
12. 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae