Evidence row 56257

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.stackdata.io/mcp"
    ],
    [
      "web",
      "https://stackdata.io/"
    ]
  ],
  "name": "StackData",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-08-28T23:50:00.573706Z",
        "status": "active",
        "statusChangedAt": "2026-08-28T23:50:00.573706Z",
        "updatedAt": "2026-08-28T23:50:00.573706Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Official statistics, China censuses & yearbooks, and as-of customs tariffs with legal citations.",
      "name": "io.stackdata/stackdata",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.stackdata.io/mcp"
        }
      ],
      "title": "StackData",
      "version": "0.1.0",
      "websiteUrl": "https://stackdata.io"
    }
  },
  "source": "mcp_registry",
  "summary": "Official statistics, China censuses & yearbooks, and as-of customs tariffs with legal citations."
}

What the leaf hashes

{"body":"12fa30295e8753a1e3ab6e2b07cca5466de9432c280ef4495e43c8b9d1f73ec3","id":56257,"kind":"listing","method":"baseline/1","observed_us":1793025437507781,"prev":null,"subject":"mcp_registry:io.stackdata/stackdata","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x41b1b26ce5a79c58cd44e763c019d906dfe0334572b1529104063244b300f9b6
2. 0x6e72eabd4c0d5d1bdb36e0be2bc2a24a8914cd1397d2e73a1ed61818673f81b3
3. 0x4d286393a522b46425e8516ff09e85c499effafb97023add60c9786fb6af347f
4. 0x8c008894af7957f9835c9cfc1464f44338d9f44fcc95d68752860fa6438dc276
5. 0xc330193f61552f3c1a08444766eb3ccd8300159f45ba937282d6319d5e55a4fd
6. 0xa2dac3b422c692359022608cbda7c4fcaa8a1f4f68cc77cacd061b20831d315e
7. 0xf616cd05364ee555e0b7acd595c3c7ca180baf4925758d3b8cc9b19c010e6b98
8. 0x3eb9b1f03a0f41baad6b5cac31ed3300bd03efaf015ed5459062d752b193545f
9. 0x306e32afca67b013b8dae25c650a371ebf6043d778dd6a120d775bcc0835d900
10. 0xfeffd663d71e06910d19eae83256a9e7825e132ad736c20f6e71e3ac2dec7d86
11. 0x40430b285418db6d3a5a2c626d90ef47fc069d45eb9e4fbee49da2a4e637758f
12. 0x58f4330f9ac32da273a2a76d85bc0768d037638cddbd3d1f09d9b64094bfd942
13. 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae