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Evidence row 47280

Observed , by baseline/1.

Kind
listing
About
source_record mcp_registry:io.github.pipeworx-io/pubchem
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
f364b3a50cbb164b7d166fd9dccec4a35dbcbe3926983c66a012fa195210754a
Leaf
0x5ebe70fe894e97862633ab661092e63d8bc0890e530da21177935261c7ccd89f

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/pubchem/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/pubchem"
    ]
  ],
  "name": "Pubchem",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-26T21:07:46.797585Z",
        "status": "active",
        "statusChangedAt": "2026-09-26T21:07:46.797585Z",
        "updatedAt": "2026-09-26T21:07:46.797585Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "PubChem MCP — NIH chemistry compound database (no auth)",
      "name": "io.github.pipeworx-io/pubchem",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/pubchem/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-pubchem"
      },
      "title": "Pubchem",
      "version": "0.1.2",
      "websiteUrl": "https://pipeworx.io/packs/pubchem"
    }
  },
  "source": "mcp_registry",
  "summary": "PubChem MCP — NIH chemistry compound database (no auth)"
}

What the leaf hashes

{"body":"f364b3a50cbb164b7d166fd9dccec4a35dbcbe3926983c66a012fa195210754a","id":47280,"kind":"listing","method":"baseline/1","observed_us":1793025409314186,"prev":null,"subject":"mcp_registry:io.github.pipeworx-io/pubchem","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x5ebe62575923123b9e9a738c01daff2bde01a6bd999e94a17e07815b5bf446b2
  2. 0xd53a9646a2a6637abe864d0f19ae50de4d6363762f53e9df2e2d2c8e5e188ded
  3. 0xc5f5ac845926ba2ed69852411c943f7d699f1bd13370912fdcb940ddfedcbf79
  4. 0x9d09db37c1ed33fc97490fb1704b87ef982b562dd7215d036ffd46a64a076713
  5. 0xc1a08add060f679f34a2defc29f49cd18a83c05b5cb6e031c7bd6e4b4a965cbd
  6. 0xb01e961ed431db03ae647882ee4bb5bcc51d2ae9d9ba2897f3fdd20250b20092
  7. 0xbbbef9f507e8ececec46aedff651be8d202780aa1b76b30691d8084cb90f2a21
  8. 0x9caca92c40e3df430dc7d6dcf3034ac1b40cc933ce297b3629dbeb9517791ac5
  9. 0xbb1090c1e42634489003a7e38bdb5d6b3998f976a72a438621c22e0eda67c1eb
  10. 0x33f025c13618ed53fc05a5cb528fef06abae42e7afa58ecfa04868e98e6879bf
  11. 0x49cc8f2035ca48165d187499d4442647d0afe9d3c61547728b03e4a0494752eb
  12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
  13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
  14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
  15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON