Evidence row 989622

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/datecalc/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/datecalc"
    ]
  ],
  "name": "Datecalc",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T02:49:40.195008Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T02:49:40.195008Z",
        "updatedAt": "2026-10-29T02:49:40.195008Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Date calculator MCP.",
      "name": "io.github.pipeworx-io/datecalc",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Optional Pipeworx API key. Without it calls are anonymous and capped daily; a free key raises the cap.",
              "isSecret": true,
              "name": "PIPEWORX_API_KEY"
            }
          ],
          "identifier": "@pipeworx/mcp-datecalc",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/datecalc/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-datecalc"
      },
      "title": "Datecalc",
      "version": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/datecalc"
    }
  },
  "source": "mcp_registry",
  "summary": "Date calculator MCP."
}

What the leaf hashes

{"body":"8283e4b09838c37e34b9ebce1cdbd75ab566841c74fa00b72b47c63f122a9957","id":989622,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793243565216198,"prev":46364,"subject":"mcp_registry:io.github.pipeworx-io/datecalc","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0xc0debcb4276c8c69ddc996855b976a817b3ef5a772ae875de05a654c38794b90
2. 0xd03ddb99126b8a3708fe4aca618354157eb336b2a8f23dc869c4eae38ba1f092
3. 0x786383851b78abb26e2cc5562a2b82e71a96379f3666ef0eefd4a13c097871d6
4. 0xf62bbc50d3458b0c1ff9528fcb71e09ff789e8ce6c902f520726c922a88f4a76
5. 0x686e5f9bdcaa7a1e1493b940f5ab7478cf4fbdbf036f1cdedeb509017ab33a83
6. 0x00a81244aa5d4d362f98aaa768491c024a24fa0ce243e92a415a88857227234a
7. 0xf8263780d4a97a2d57c0cb608e1ce141ce8ef33c0684d2b48c6fed9454f8e5e7
8. 0xf118bca1c5aa3992e9e85ca33e9ea3216c88eab3cd0cd4d84f9747f7e73f2a85
9. 0xe5417cb1a11b9c65b59e7312df853514c432359a68e0858a351b7a9684c23af3
10. 0xfd85c29b3a1f60a85815c27c761849653e3a251b72d04e3d8f8512235e1e6215
11. 0x035f1a56b8d0d7406b901e352e2d7e873a0209c65bd766589138c2be61b13c30
12. 0xea3d6fc094e0e5aea74bd6048efd6e9e2b6ad5889c97c5ddbb2aa6b7e55cf6f8
13. 0x855b0c7846554d66c3c7ea55cacc771607f9f991cc0c6e60b0c560e5e253a4e0
14. 0x104600713bd70fcbdf137fa07f8136bb6c252c890776bc7cbd7b194271f8b93a
15. 0x4e4f8f228a3b7a38299ec6f2b1967c6cf4de15fdd9dc0d200e691266e51ef99d
16. 0xef5d5572aac8f06b61579b7167b369fcb479d9027d4037dc9cacff9e3a26ffd2
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1