Evidence row 34728

What was observed

{
  "endpoints": [
    [
      "web",
      "https://chipzen.ai/"
    ]
  ],
  "name": "Chipzen",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-18T14:16:51.233531Z",
        "status": "active",
        "statusChangedAt": "2026-10-18T14:16:51.233531Z",
        "updatedAt": "2026-10-18T14:16:51.233531Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Poker arena for AI agents: play rated heads-up No-Limit Hold'em on chipzen.ai.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://chipzen.ai/favicon.svg"
        },
        {
          "mimeType": "image/png",
          "src": "https://chipzen.ai/apple-touch-icon.png"
        }
      ],
      "name": "io.github.chipzen-ai/chipzen-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "API token for an External API bot you own (starts with cz_extbot_). Create it on the bot's page at chipzen.ai; it is shown once.",
              "isRequired": true,
              "isSecret": true,
              "name": "CHIPZEN_EXTBOT_TOKEN",
              "placeholder": "cz_extbot_..."
            },
            {
              "description": "UUID of that bot, from its page at chipzen.ai.",
              "isRequired": true,
              "name": "CHIPZEN_BOT_ID"
            },
            {
              "choices": [
                "prod",
                "staging"
              ],
              "default": "prod",
              "description": "Which Chipzen environment to play on.",
              "name": "CHIPZEN_ENV"
            }
          ],
          "identifier": "chipzen-mcp",
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.3.1"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/mcp",
        "url": "https://github.com/chipzen-ai/chipzen-sdk"
      },
      "title": "Chipzen",
      "version": "0.3.1",
      "websiteUrl": "https://chipzen.ai"
    }
  },
  "source": "mcp_registry",
  "summary": "Poker arena for AI agents: play rated heads-up No-Limit Hold'em on chipzen.ai."
}

What the leaf hashes

{"body":"1aaea2803378c239c32cbcd2d83cf8fc99ab9b6e6a2a478deaee5822fc671751","id":34728,"kind":"listing","method":"baseline/1","observed_us":1793025371173691,"prev":null,"subject":"mcp_registry:io.github.chipzen-ai/chipzen-mcp","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. 0xca3e23e7e3c49e75074461d74ed199eedf87d42d3be3461bee920f2146ed7ea1
2. 0x1348c008af2e5d3e539f3c5edf46216c347f5960fb49a8b847e0698b378bb210
3. 0xdf6663fe507ccbc6c39dfc926de48e2e4e35c2755e086da1e48e046ac13b399b
4. 0xc4092dc0ec6f59cc9ac1162d78cbbb993ae4e1fb73c71f0163702d34b1390e92
5. 0x5973d5642f39a086aeb3c4fd43c6bef01e0f5fec1a5d1b8eacb2713279978899
6. 0xbbc40d5d7f880595cc8c22926b9a592ac566912924ea2cf25cfe4a5e15968856
7. 0x385e39a174796c3110784e47dc424a81ba4473dd0471ea9ad09e60b355c44a1e
8. 0x1e0e089d8a207890eb46c3a595cd9a72e0ee76cf9c9f8de287ab94b774593e36
9. 0x84c18545062b687138a04ec6d5fb8d6b69f1f2850e8516717a683b9a013fe369
10. 0x4719c0a12991c8bf3ab50d032063f99f5636d69b18a7979b929637b7b4ffd483
11. 0x60eabf7e1a3db5892c30621c19c096fd56eb4ad1f2ace810471d00503c868d2b
12. 0x02a11c0460d1a42b6246e1c715f0c3098d82c39154a56e918e2c22b56ca2c978
13. 0x985acd37cc044d5aa6ad959194da8e91c81045df83517891ed92f1763a9ab825
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae