Evidence row 13191

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://barcodereport.com/api/mcp"
    ],
    [
      "web",
      "https://barcodereport.com/barcode-api/mcp"
    ]
  ],
  "name": "Barcode Report",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-20T22:03:46.516884Z",
        "status": "active",
        "statusChangedAt": "2026-10-20T22:03:46.516884Z",
        "updatedAt": "2026-10-20T22:03:46.516884Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Look up products by UPC, EAN, GTIN or ISBN across 500M+ barcodes, or search by name. Free plan.",
      "name": "com.barcodereport/barcode-lookup",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer YOUR_API_KEY. Free key with 100 lookups a month at https://barcodereport.com/register",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://barcodereport.com/api/mcp"
        }
      ],
      "title": "Barcode Report",
      "version": "1.0.0",
      "websiteUrl": "https://barcodereport.com/barcode-api/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Look up products by UPC, EAN, GTIN or ISBN across 500M+ barcodes, or search by name. Free plan."
}

What the leaf hashes

{"body":"b1d2a45add619efbb9fb2dfb78aee8468c9c72194ad58f9799c06ab283bf92b7","id":13191,"kind":"listing","method":"baseline/1","observed_us":1793025307525649,"prev":null,"subject":"mcp_registry:com.barcodereport/barcode-lookup","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. 0xfc810da01c75a03ac4604ac09652ed8b3aed25ce2ce8840d985a5ff8f9cbd857
2. 0x8f6726d5c42da2ba6aa9884d0b2d694f417a021e12ca85800906885678b89d03
3. 0x2ae4dda2bcf26d9826f3c87ca369696e4b1f83734494b9ccf48487346a06b7f3
4. 0x4b1b53ccda51b32a0a63bcfb021a90cd17e0fe2990fc27637912f2fd3f440f6b
5. 0x2919748bf283665f17ed97e800300acc1be5d7af80ed4dc4651d07bd2e646c5e
6. 0xb861e12a2e00de68e961663851b1e775bb9d2101c8756423fb8b66290f82e8aa
7. 0xf85d246b45d880e41b5c02aa2abab2ee364be0491b7132fda197fb4a16d4c60f
8. 0x8db6b774b2dfc8c1179ffa99ffbed3aa8c9d3a16517531c3539e3c34842666ce
9. 0x136ba120fe1689e63adfe97318f101db112c5f8bc417737f0dd8694087327526
10. 0x3a8d3d4169cff276684d88a4f127811b670ead57557bd0903bd3af277772b2c1
11. 0x51bc8fcd224b36d2c60fa49f46f383ee8328191b9e73209ce8018f2612c3d42f
12. 0xf8173f36b7a27e1bb0f6961a49501bba1d99349c5e11449d0d557fbaa910be0a
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae