Evidence row 2281501

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/jecfa/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/jecfa"
    ]
  ],
  "name": "Jecfa",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-02T20:53:32.754787Z",
        "status": "active",
        "statusChangedAt": "2026-11-02T20:53:32.754787Z",
        "updatedAt": "2026-11-02T20:53:32.754787Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "JECFA (Joint FAO/WHO Expert Committee on Food Additives) — safety evaluations, Acceptable Daily…",
      "name": "io.github.pipeworx-io/jecfa",
      "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-jecfa",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/jecfa/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-jecfa"
      },
      "title": "Jecfa",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/jecfa"
    }
  },
  "source": "mcp_registry",
  "summary": "JECFA (Joint FAO/WHO Expert Committee on Food Additives) — safety evaluations, Acceptable Daily…"
}

What the leaf hashes

{"body":"a69dce6e8506b250245b6d18a29f14dab02c24a6cf66703a2fe5b936c7757882","id":2281501,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793654328985859,"prev":996894,"subject":"mcp_registry:io.github.pipeworx-io/jecfa","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xdd0f74087bdcb9d159f5796a6429c094fb13fe70f7cc2282a7559d80742ba0df
2. 0x596753d13b0d681189851e55c2da4d64db40eac5e37df94f528944bf6d9349a0
3. 0x821bb5abbcdea593a06ee43c869b889458a6e3976388da8ad860bd4bcbdecd5f
4. 0x60e3139feab63f0d5bd5497084e5f37fc9d4bde0fbd1f6dacd3568c30598f37d
5. 0x6f65bc3dd451dd38fed69abf72871a10a02393d357d27e80eaf708c863e31156
6. 0xcfb2c516e615508726144e72e4eb040b78b2e564235d42a38f30c00f3f9c570a
7. 0xd3aff6fd1bc1778e7a0ef349383c87d3d3d8631ff1d3a156c33482c480d3c8e7
8. 0x48b4de46371eb28e83374f5b632e596fb5365ad7de50e58a903230694017f203
9. 0x6f7c2ceabcb4ce1414adaac97b6acd2ec4e3f0023bd83b9b9238a7f3e06bf67d
10. 0xef4b1c9ceddfa888d249e0c336cb448a24e5f5f04dcb00fcfbefa0287bce4b8d
11. 0xd649d8636ffecb1c7d5bb50b2dc342616748de127f37838edc4922688eae76eb
12. 0x01a0fcfad157f65c9dfed12bdf21e0b3759daa967023093e05700338fea51d1c
13. 0x4d734793ac74750cbdf1c30c6305a901fe0ac2ddf5819c226b382460e68290cd
14. 0xaed7c1080b4ff0b1fc4f851df0f2b8b4ef86b106015aa3aaf8da39a641c41a3d
15. 0xa370e8e015a32408a8112e54e5f40a8a65e871bd52bbc6f25fbd1139f2ba5b11
16. 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af