Evidence row 519364

What was observed

{
  "endpoints": [
    [
      "web",
      "https://topy.ai/developers"
    ],
    [
      "mcp",
      "https://topy.ai/mcp/cpo"
    ]
  ],
  "name": "TOPY.AI · AI CPO",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T16:42:53.229093Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T16:42:53.229093Z",
        "updatedAt": "2026-10-27T16:42:53.229093Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Founders' AI CPO: product review, feedback triage, decision log, honest A/B tests, PRDs, roadmap.",
      "name": "ai.topy/cpo",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "A TOPY API key (Dashboard → API keys); or run `npx @topy-ai/cpo-mcp login` once instead.",
              "isSecret": true,
              "name": "TOPY_API_KEY"
            }
          ],
          "identifier": "@topy-ai/cpo-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://topy.ai/mcp/cpo"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/TOPY-AI-LTD/TOPY-AI-CPO-Skills"
      },
      "title": "TOPY.AI · AI CPO",
      "version": "0.1.0",
      "websiteUrl": "https://topy.ai/developers"
    }
  },
  "source": "mcp_registry",
  "summary": "Founders' AI CPO: product review, feedback triage, decision log, honest A/B tests, PRDs, roadmap."
}

What the leaf hashes

{"body":"0ad2999b5ee4512c302500e73c55af8c5119233d4017295077665dfab9d52b60","id":519364,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793122146098576,"prev":null,"subject":"mcp_registry:ai.topy/cpo","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xdfd4d110e3e698c5884b20a75fc36e61f697f1502b4f889388cf30ab6d903e30
2. 0x140d38fd94ee2af46bc2abdf8785e7b5095b64f4202ba6908b2fd5f9c7884794
3. 0x9ea6a3926110a65bd66b516fee91a910dbc50dcf47187bb1f76769445ea611eb
4. 0x2bf8acb8c2862c345365b7bc36ef7dd352b9c20c52b7774fa2dab9db7b52cd1e
5. 0x9e4ddd22f33d2b367d0a48b79f21889f491fd98846042058bc2eb89cb1de1e78
6. 0xc24ad349169215d11bcc972b87fbc4595941ce5b758e6ec8e4c48dd3ceaadbff
7. 0x7f5a6acdfb644d295ec59b69fe78ab1887d5abc56bc8f2f3d21f0df210b2f6b1
8. 0xaf7b573263e78f43fd3b3d1928c3e7710932c1618c9e6644eb47773134ce4f26
9. 0x82c91994046fdeb6842bcd11f43df8905129aa39a9d98c4b04271844c3f52a68
10. 0xf15c4662f158512752b5663d4c94f9e3c5d11789dc4388192e7e6d9c657a39ab
11. 0x9af01ba97e34591efa38acdf7cbe8b47ad3b56f8797520a2c7b8cc01c4c26ae7
12. 0x432466fcdd2910b1cfb374f6f8307f56042f761290246a54c4573b208b574ac2
13. 0x979156f4f0a1ab811055c0a4d2b45bfa74d4bef619c176540454ee8d15e5bebc
14. 0xf72dee7a0c7534cb19ede4959b957b00c0a8285c36ad49dd2ce1c1092bf60d93
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4