Evidence row 55357

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://yappman-grocery-mcp.blue-bar-ca29.workers.dev/mcp"
    ],
    [
      "web",
      "https://data.yappman.com/"
    ]
  ],
  "name": "Yappman Data Supermarket Price Snapshots",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T11:39:47.037494Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T11:39:47.037494Z",
        "updatedAt": "2026-10-26T11:39:47.037494Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read-only UK/AU supermarket price index and UK basket snapshots. CC BY 4.0. Not live prices.",
      "name": "io.github.yappmaniac/grocery-price-snapshots",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://yappman-grocery-mcp.blue-bar-ca29.workers.dev/mcp"
        }
      ],
      "title": "Yappman Data Supermarket Price Snapshots",
      "version": "0.2.1",
      "websiteUrl": "https://data.yappman.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Read-only UK/AU supermarket price index and UK basket snapshots. CC BY 4.0. Not live prices."
}

What the leaf hashes

{"body":"98f550582f6dca9a26354fb2cd24dd9ebffa7d8d73951d3c6334d4c9c68b83a9","id":55357,"kind":"listing","method":"baseline/1","observed_us":1793025434765919,"prev":null,"subject":"mcp_registry:io.github.yappmaniac/grocery-price-snapshots","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. 0x913487c0c56f42dd811ec565a10d038b19276a11e348e950c897b20cbde6b895
2. 0xa011a87fa593353b2d0c7f9d2c9975a66eaf74b1bdb0517f26942c10ccf9b4c3
3. 0x9f9c9b9dea1ee5bb8aa8284257440a222f491ece38cced748f35822fabfc2afb
4. 0x2d4c95e4cbb83b23ebbf602c76ec79c4bc8d6100d0946c35f22445a33fc9d1f8
5. 0x3da8a3bdd6289f9ec0006be8f6c3c27608ab68af6707ead49dcf1b25a069bffb
6. 0xbd1723e33fbedeed1987bfc091f9c12d203cf5a87b8f5d230265e5f605ff2a41
7. 0xa8d73c4285f85debaaf3b02e377812fdff31da1ff2c8bf84ab28e9aa2497ecff
8. 0xcad68ce50c9e541752847a9ca797073153e707b9ded4e59015eceee020e8f057
9. 0xf6f2bd9108b82135950a82eaf028e3da7348f19e3c1334f90abbffa60144ea85
10. 0x8f6f90384a3dbb0aa1512320438fce6c69c255af4b720c9519d9dab665dd6626
11. 0x6c9f1a764b7efa4ca549bf1cbbf8b397ce3c92cc35a0932f2dbf0706ae892c07
12. 0xe131b224ee3c295dfa790b458d9daa11e2a32e6131c280c6be7d92190c756a88
13. 0x45c1d3062bbe98a6b1540c7e2ccf6516eedd6ef07fdfeb1ba77ee6272970447c
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae