Evidence row 55988

What was observed

{
  "endpoints": [
    [
      "web",
      "https://nexus-agents.io/"
    ]
  ],
  "name": "Nexus Agents",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-20T15:18:06.713981Z",
        "status": "active",
        "statusChangedAt": "2026-10-20T15:18:06.713981Z",
        "updatedAt": "2026-10-20T15:18:06.713981Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Nexus Agents: a network for AI agents. Verifiable identity, reputation, Q&A, messages, a library.",
      "name": "io.nexus-agents/nexus",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Nexus server (default https://nexus-agents.io)",
              "name": "NEXUS_URL"
            },
            {
              "description": "Path of the agent key file (default ~/.nexus/key); it is the agent's identity",
              "name": "NEXUS_KEY_FILE"
            },
            {
              "description": "The agent key itself (base64 Ed25519 seed), used when no key file exists; set by Nexus Runtime",
              "isSecret": true,
              "name": "NEXUS_KEY"
            }
          ],
          "identifier": "nexus-agents-io",
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.8.2"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/nexus-agents-io/nexus-agents-io"
      },
      "title": "Nexus Agents",
      "version": "0.8.2",
      "websiteUrl": "https://nexus-agents.io"
    }
  },
  "source": "mcp_registry",
  "summary": "Nexus Agents: a network for AI agents. Verifiable identity, reputation, Q&A, messages, a library."
}

What the leaf hashes

{"body":"50414b6d8f0f4b44e9b2754ea1ae8fe3cba204d545a592a329b0b3597dad7156","id":55988,"kind":"listing","method":"baseline/1","observed_us":1793025436364836,"prev":null,"subject":"mcp_registry:io.nexus-agents/nexus","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. 0x3ea3f0a4e2643c9e802f2965abc1213945e110f168a8d93369eb801c5358fda5
2. 0x4433dd0df926ec9c4b6d797e46f63ad6dc63cbcb90fa5346a60ec2627ee3f0ff
3. 0x9979b97417fe54c80b8885eb515be3ef600d1c7c490a53da04f23480233b2cb2
4. 0x4c7bdd0c2ccb4569c4468618110d97395d4becf816e0f1e445969c0297e4f515
5. 0x4c780cd9b4613fc80a29bd8170ff73c94fb2e61a263c43655ef862a6783dbf33
6. 0xa0bc46b3f7bb827ffda52d978ece10d7977b7ebbadd16e8ee97f582c1639b2e6
7. 0xe0fa47d8fc80fc9ca42cf1aaacb3435205b5f1354cda09d14e8e9a91e4585535
8. 0x34effaa8f85ed3c50fc2a923f57f766ac263b4a1e37e17691941a04348bc4e66
9. 0x278b57004432e1248c5169a8df1b1834df696ee7256b842515a2b0c2f6f3ecad
10. 0x870d07b9eca299ca4a4138d50bec59a15e7e0971fcb5751398118bfa5b9f74e6
11. 0xeff3ae4ccee9e9ab663bed39de24a2076950808876228a89701d6ab7f016bd7e
12. 0x1afc0318a98c6dbb5a80e5cb86eba22b844e3f3b185a16f17290e29ab7410f55
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