Evidence row 1000941

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/art/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/art"
    ]
  ],
  "name": "Art",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T05:40:28.422972Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T05:40:28.422972Z",
        "updatedAt": "2026-10-29T05:40:28.422972Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Art MCP — Metropolitan Museum of Art Collection API (free, no auth)",
      "name": "io.github.pipeworx-io/art",
      "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-art",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/art/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-art"
      },
      "title": "Art",
      "version": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/art"
    }
  },
  "source": "mcp_registry",
  "summary": "Art MCP — Metropolitan Museum of Art Collection API (free, no auth)"
}

What the leaf hashes

{"body":"c72e3401977ad9e457f7ce3b78d6f1e998f02aa80b05fbb2694af55a31d76938","id":1000941,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793254371204785,"prev":45998,"subject":"mcp_registry:io.github.pipeworx-io/art","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. 0xa4f0050f68f42654495dfeabe4f61963d7c497e00e2fc9b91665e0a5458740c4
2. 0xd561fc491a54bd6ce3ad4288103aecd2165a7e169f739da23afe14febc14d7f9
3. 0xba1f53d870effdb253a9799286cc863687dd6320da4be42d8166099119cb2103
4. 0x27b08958638b26792a9f80abde0f45e0bc09ef20b3105a055df948632cd4f7c9
5. 0x56410059d6591c7d420fe0646795a51dbf3c25869ac2aad5dcfe816b06aa445d
6. 0xf037935f28e812453b072fedcb5c31eab45dcdec9c9ccc8693042981f9f8a18f
7. 0x7ade7614fc335890af9a99af0ecc473674f1bba72f36c9ccbef49b8e07617057
8. 0x9d009eb16e7246852b9a84899887fd7672a575a29509cbeb2a8cdc102cbbdf2e
9. 0xaf68c1c712187a4802ca06317a1827af9a88aea297e14915d28e92ac0a0dcde8
10. 0xe84c1334ae6c7a21f1ae2e0143dec33035a0091d83f716e86dc2a635a77b9795
11. 0xbeda2a8bda3ec47161ea70d33d2c5853aac24fc7cf152f45d7f8bd3ee23f0daa
12. 0x72e505d82f60c5658626e2964c5e4af96fe557d2665a118c8a32969a10892747
13. 0x94e478acbc2c3295d80ec724aefbece47c88aacf0c52e04d39a48da5b85a8925
14. 0x391d7d4dd95ff3f26ed046f59cb7617fe53d7bb32216fddedcb614635f3079dc
15. 0x4a1f9fe26bf92c291485b5fb33b95d1917a994e417ac0526ccef55ede0a90a4c
16. 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1