Evidence row 18310

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.nitrosend.com/mcp"
    ],
    [
      "web",
      "https://nitrosend.com/"
    ]
  ],
  "name": "Nitrosend",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-19T07:10:01.664509Z",
        "status": "active",
        "statusChangedAt": "2026-10-19T07:10:01.664509Z",
        "updatedAt": "2026-10-19T07:10:01.664509Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "AI-native email marketing. Campaigns, automations, transactional, contacts, and analytics.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://nitrosend.com/assets/nitrosend-mark.svg"
        }
      ],
      "name": "com.nitrosend/nitrosend",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Nitrosend API key for stdio bridge usage (starts with nskey_live_)",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "NITROSEND_API_KEY"
            },
            {
              "description": "Optional OAuth bearer token for the stdio bridge",
              "format": "string",
              "isSecret": true,
              "name": "NITROSEND_BEARER_TOKEN"
            },
            {
              "description": "Optional MCP endpoint override (defaults to https://api.nitrosend.com/mcp)",
              "format": "string",
              "name": "NITROSEND_API_URL"
            },
            {
              "description": "Optional fixed-brand override. When set, the bridge sends X-Brand-SID with each MCP request.",
              "format": "string",
              "name": "NITROSEND_BRAND_SID"
            }
          ],
          "identifier": "@nitrosend/mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.8.2"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.nitrosend.com/mcp"
        }
      ],
      "repository": {
        "id": "nitrosend/nitrosend",
        "source": "github",
        "url": "https://github.com/nitrosend/nitrosend"
      },
      "title": "Nitrosend",
      "version": "0.8.3",
      "websiteUrl": "https://nitrosend.com"
    }
  },
  "source": "mcp_registry",
  "summary": "AI-native email marketing. Campaigns, automations, transactional, contacts, and analytics."
}

What the leaf hashes

{"body":"aef7b3f183979d556424e9ea074c196792589f198d94a35ede7d835b28d8db45","id":18310,"kind":"listing","method":"baseline/1","observed_us":1793025328827031,"prev":null,"subject":"mcp_registry:com.nitrosend/nitrosend","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. 0x9d4c08786710b56bff1fb02bf60c9ed32ca17370e83b1cc85c49f98d0f898088
2. 0x737c10f390828d4d1387913dd08e2d0ec7f9a14170b0feed71d8dbe4ff3b6518
3. 0xc7cdbe6b1a6e306598403d2537a249481c471f44eab9a6448164c9b4e5e7646d
4. 0x485d5f3d4cf972e09561dbde9b7105763f3fe29951a3c64b6b23535d166bf04d
5. 0x3d7565c141e5a5a5518c11d78a5315dace8cdb72403be33c021ee291db1bcb32
6. 0xcbcf3890d62df81b62f4b0b79bf46dd2bc4f73a8bb55973793b94362fd1ae231
7. 0x2f26043dd5a910c00bb4e802ee3aaf7fad67301d6db12cbdca73852b6da2edb5
8. 0xb3703396b3a4e856d16148e6d812c3bbf55df2e670f9e23e9d481295a73c4af0
9. 0x1bcbf8375aaf58d02b4aded4c7af71885f0b6b377c5f81833bf9c3798b73f819
10. 0x76f7db8632e242ae6ea1dd18963ee2f7db2ce4bf8b0d87a280492cce08baa2cf
11. 0x351390dbbaa59bf254610c44de6ad39906ad2c226e8f737f7d774c0b9d382abf
12. 0x73cca5e5ba14c0aaa799d5324b89eb846e3c5546aab3b2cda0c05c5eeaa03168
13. 0x99a4e0f8b23989f58b564c1b6e419578b4388f6e0dbf6e50177c1bd476302d0e
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae