Evidence row 32228

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.coldrig.dev/mcp"
    ],
    [
      "web",
      "https://coldrig.dev/"
    ]
  ],
  "name": "io.github.YS-projectcalc/agent-cold-email",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-25T04:05:59.758531Z",
        "status": "active",
        "statusChangedAt": "2026-09-25T04:05:59.758531Z",
        "updatedAt": "2026-09-25T04:05:59.758531Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox, from $99/mo.",
      "name": "io.github.YS-projectcalc/agent-cold-email",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Bearer token from POST /signup (free, no card) — or run `npx agent-cold-email demo` first. Optional at startup: without it, `initialize`/`tools/list` still work (unauthenticated introspection), but every `tools/call` fails until a key is set.",
              "format": "string",
              "isSecret": true,
              "name": "AGENT_COLD_EMAIL_API_KEY"
            },
            {
              "description": "Override the API base URL (default: https://api.coldrig.dev)",
              "format": "string",
              "name": "AGENT_COLD_EMAIL_BASE_URL"
            }
          ],
          "identifier": "agent-cold-email",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.2"
        }
      ],
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer token from POST /signup (free, no card) — or run `npx agent-cold-email demo` first",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://api.coldrig.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/YS-projectcalc/agent-cold-email"
      },
      "version": "0.2.5",
      "websiteUrl": "https://coldrig.dev/"
    }
  },
  "source": "mcp_registry",
  "summary": "Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox, from $99/mo."
}

What the leaf hashes

{"body":"5b8b12ffb0ed7a798c278fb8d240f4737ded085e9e42f34af7fb1ac0ef276905","id":32228,"kind":"listing","method":"baseline/1","observed_us":1793025365961826,"prev":null,"subject":"mcp_registry:io.github.YS-projectcalc/agent-cold-email","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. 0x75449f613004dfd3def58564cc9f6d19dbafac14ca4d5ad24912ba01a05aba06
2. 0xd4a69da698cf15c3fdcc7dc4175b6689eaae4dcc547175655c44b752c0a88fb6
3. 0x8280c3818c83e5b0980c3c7f84c9a5a6bf75c7cb0de459fbfa686b2981875193
4. 0x2d649fae1bc26460ac8a15f8e355eca99ad228b51747ef3ab1821ddb08aa693b
5. 0x5a1b9a5c26be2ef3f08ceb7d20dd5a1b9fb623fd03721737ad29c6b0ca7fcbd2
6. 0x8b0e9a2d0602788d99236f39492de1ef2a6babbde78562949fcfc3983d58a395
7. 0x79316282ff644f1aa635d143df3e95247f35f6e46f80ce1988b025700cf63d15
8. 0x31c869b35179b1afdbaaca3ce02675f351c3f1ab7c8ad443ffacb83ddb60d86e
9. 0x3e6cd050d8689064b852ac883c96c324e0131a491f68bc3ef665584d5fac9073
10. 0xa5cab88755e99fd7d4830115b4e412f63a460a19c270832f53f6e32be125c3da
11. 0xff8296d2db87846f2b3d9a7a4926ee8ea17587a9a2960c155a4f0e1d36206dd8
12. 0x43ccc5fffcdb82bff6ecf4ac7157c905b45d2f0362e7f7fbe908de1250b9533c
13. 0xdef3cab0b4070d8ad7f4f91288da4881d19789f131b1b353621df79df04a0617
14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae