Evidence row 21901

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.wa-campaigns.com/docs"
    ]
  ],
  "name": "WhatsApp Campaigns",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-21T10:15:11.609711Z",
        "status": "deprecated",
        "statusChangedAt": "2026-09-21T10:27:40.654629Z",
        "statusMessage": "Renamed to com.wa-campaigns/whatsapp-campaigns — same package and tools.",
        "updatedAt": "2026-09-21T10:27:40.654629Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "docs": "https://www.wa-campaigns.com/docs"
        }
      },
      "description": "Send WhatsApp campaigns: templates, audiences, surveys, inbox replies, delivery webhooks.",
      "name": "com.wa-campaigns/campaigns",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Base URL of your WhatsApp Campaigns agent gateway. A key is tied to the environment it was minted in, so this must be the same environment that issued WA_AGENT_KEY.",
              "isRequired": true,
              "name": "WA_GATEWAY_URL"
            },
            {
              "description": "Scoped agent key (rcsk_live_…) created in Settings → API keys. The rcsk_ prefix is not a mistake: one key shape serves both channels, and the channel is chosen per call.",
              "isRequired": true,
              "isSecret": true,
              "name": "WA_AGENT_KEY"
            }
          ],
          "identifier": "@wa-campaigns/agent-toolkit",
          "packageArguments": [
            {
              "description": "Run the stdio MCP server entrypoint (bin: wa-mcp). Launched under this name the server defaults the channel to WhatsApp.",
              "type": "positional",
              "value": "wa-mcp",
              "valueHint": "binary"
            }
          ],
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.6"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/agent-toolkit-wa",
        "url": "https://github.com/RethinkLedgers/rcs-templates"
      },
      "title": "WhatsApp Campaigns",
      "version": "0.1.6",
      "websiteUrl": "https://www.wa-campaigns.com/docs"
    }
  },
  "source": "mcp_registry",
  "summary": "Send WhatsApp campaigns: templates, audiences, surveys, inbox replies, delivery webhooks."
}

What the leaf hashes

{"body":"05d86c528a0c7cbea68122d9f6102a62c55695be1c8156a217d9e6968fbb5305","id":21901,"kind":"listing","method":"baseline/1","observed_us":1793025341043420,"prev":null,"subject":"mcp_registry:com.wa-campaigns/campaigns","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. 0xd2cd932c25044e256693648798be94e3e02a74fd5d4c3c96a9d95ba9a3025718
2. 0xf9150dbfef1720bf69c333726f1c650f99029ddd8b821d9ae00fa5ea08338e94
3. 0x8cce58eafa50ab098a0adcd94e729fded2745ab0f616ab80abe80889b85b6955
4. 0xe62959b470d2757be44dc862cfbdc759ff39d35325e9b966efab5d256ef6fdfd
5. 0xdc63256e2295d41f78a850dac9a2005d3f430f53519b4f9c5ecfbda7975aad86
6. 0xc5788921d273faf9afa524de6c2ea06df596470f9f9ac7dc12b2e0901cced464
7. 0x93be7b8ec8f679b70cb90bfe318f4783936ad77345a1e331e2511f6642c84467
8. 0xf2eea7335433be58d1f0184697ca62f32a33a1be76e39166c3bf1d4ad27bce45
9. 0x008c445a399b61afdc20c54ee3e0ec793e4c8777a789fcf26e60c8f32b577246
10. 0xd1acd3a5e8f2e6b382461a84161503858e24e84a33d111371b0fdb2f41706bc2
11. 0xeaf3195c275963f3eeb4749105d68120537a7f4d52fd74b2b409cf37abd6484b
12. 0x9f6b360f1992898cb3f17e45d0bf5a96f946d7eaf9705a57af03c151a407d239
13. 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae