Evidence row 3963799

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.ngtchain.com/"
    ]
  ],
  "name": "NextGen Token",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T20:11:28.799617Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T20:11:28.799617Z",
        "updatedAt": "2026-11-07T20:11:28.799617Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Pay per call in NGT on Base: call any NGT x402 paywalled API with a capped budget. Signed locally.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "32x32"
          ],
          "src": "https://www.ngtchain.com/ngt-icon.svg"
        }
      ],
      "name": "io.github.Har50/ngtchain",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Wallet key that signs NGT payments. Use a dedicated wallet.",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "NGT_AGENT_PRIVATE_KEY"
            },
            {
              "description": "Most one call may pay, in NGT. Default 0.01.",
              "format": "string",
              "name": "NGT_MAX_PRICE"
            },
            {
              "description": "Most pay_and_fetch may spend per server session, in NGT. Default 0.1.",
              "format": "string",
              "name": "NGT_SESSION_BUDGET"
            }
          ],
          "identifier": "@ngtchain/mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.2.0"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/ngtchain-mcp",
        "url": "https://github.com/Har50/New-network"
      },
      "title": "NextGen Token",
      "version": "1.2.0",
      "websiteUrl": "https://www.ngtchain.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Pay per call in NGT on Base: call any NGT x402 paywalled API with a capped budget. Signed locally."
}

What the leaf hashes

{"body":"0440aeb270bfccaa196c7430a520b8cd11f82c2cc0be8fc3d60acdb476200721","id":3963799,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794083120324666,"prev":2630717,"subject":"mcp_registry:io.github.Har50/ngtchain","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0x50c1d5ecbf2bc0b28bb3a914ff038d796da4b723762ea3768460f80fbe78d829
2. 0xa470f42e83c8e9f550e63b5c18d6b606404cabdfdfa7195f2a9ea0158ae9dbef
3. 0x6feba12b934fb1ce176ff0a5d60afe5d4d92b9b26a819f24a9e55a7fe057fc70
4. 0x79ad2a0e8889d297e9be74632054a5934baef93235220b2482764bde11088a0b
5. 0x26fef9cba43eda2fd16065cdf04bd7f3c2845b60f61e5036e786e6ce8a35f0ee
6. 0xb9d09f4c42acc310dfb7be5d794de560f95bfe667b36378eb15393000c0341bd
7. 0x965cba50c64678d5df61f9cd96b93e7afa14c6b48d2552314d90716095b475e1
8. 0x6521d80c5d91dd2e3a854583cf824dda9153a474c3cbc1157e60bd79cd3abc7a
9. 0xce02b6686da0cc3f9a8205911a9a24d6bc786719768724ecfdc396884354342b
10. 0x234c36bfd31bfcf9a34b0e0be3f229f892504ba3a56d844abf0161324ae62656
11. 0xa191e66fbecaa0f796995a1f70da6615fb5ff713a6b2682ee24792cbddc62d0c
12. 0xc9c30027da6a1f08b5b880f5e0e6b8705017580d111e182bf33863e42bb0dfbb
13. 0xc4120aeb12547f09661af6703e81437a23bd38ba065b3075f70bd20e35771d53
14. 0xd65824e287abd80d02260ba918668ef1c4c1d016243891677bfc31ebb1eb16e7
15. 0x1440bd4864ece4f3cb1a2fc48e88ddbd78cefd359ae16ceeb69a13e36b55021a
16. 0xf0a56561418cd0342a328707933cc222d8fa725efff7ffd081e0226ee8c46c0b
17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa