Evidence row 1008937

What was observed

{
  "endpoints": [
    [
      "web",
      "https://docs.spacepost.dev/tools/mcp/"
    ]
  ],
  "name": "SpacePost",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T09:12:46.684546Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T09:12:46.684546Z",
        "updatedAt": "2026-10-29T09:12:46.684546Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Send email and manage domains, contacts and webhooks on SpacePost, the Resend-compatible email API.",
      "name": "dev.spacepost/mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "SpacePost API key (sp_live_...), created in the SpacePost dashboard under API keys. A sending_access key limits the server to sending.",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "SPACEPOST_API_KEY"
            },
            {
              "description": "Set to true to expose only read tools (GET endpoints).",
              "format": "boolean",
              "name": "SPACEPOST_READ_ONLY"
            },
            {
              "description": "Comma-separated API areas to expose, e.g. emails,domains.",
              "format": "string",
              "name": "SPACEPOST_TOOLSETS"
            },
            {
              "description": "Set to sending_access to expose only the tools a sending_access key can call.",
              "format": "string",
              "name": "SPACEPOST_PERMISSION"
            },
            {
              "description": "Default sender, e.g. Acme <hello@acme.com>, used when a send omits from.",
              "format": "string",
              "name": "SPACEPOST_DEFAULT_FROM"
            }
          ],
          "identifier": "@spacepost/mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "title": "SpacePost",
      "version": "0.2.1",
      "websiteUrl": "https://docs.spacepost.dev/tools/mcp/"
    }
  },
  "source": "mcp_registry",
  "summary": "Send email and manage domains, contacts and webhooks on SpacePost, the Resend-compatible email API."
}

What the leaf hashes

{"body":"8e072a669f7f53f5052d4609f1cefcc7a42cf302bbd1d7efcf7f77d64cdb4f18","id":1008937,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793265182369603,"prev":null,"subject":"mcp_registry:dev.spacepost/mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0x72f06b449bf0c231d11d4ed72afa8989d8319518ef349201461c7be63bcc8442
2. 0x12e8138c98cf6a8d6d6648dd7165624e4c41de0918d5fad1aa2656fd8720f30f
3. 0x02ec7e3ff7d90b983af1c068668753ea5ac5a1d2bddcb350314abc662cc78c27
4. 0x83808400fa7d046453bd020a04831b6f74f117abdf0b8d507a33797572cc49c0
5. 0xc9ed0ce030c8ccc023aa8cfd11329148f4f3abbc02eaae0b1cbc52e17c60eb32
6. 0x813ab00850d32e343eab319b218a59177593fa99a84c62b6721ce395a5ec63f0
7. 0x2f5c2717f441fd211ca408a3eb7e18b4aa52241a7a30d29683a84023a44f9976
8. 0x1ed9a731d1aeefad6d0fca9fbcb90c4c7f355fa181ce088d4223504936222804
9. 0x501d08d468a490c989238ae5586fb3ceb6667f7d7c38ffa0fe811b258a5d046e
10. 0xfbc2c3486c82172153abf62c591515d56145dc84de0c3652920fc974d26d9227
11. 0x1e6a357994ae0db31fe48c8e5034e9425138287de7eaeb04c64fc5157fc05ab1
12. 0x198599590f19a8367bf24eba3e1fae27d0c053b385c7b1d55332950af453b540
13. 0xbc3fd8e509855b2d6ee4c13ed5f7f098e0a2473c66efc60e409ad0e77322a80f
14. 0xa07c03f1ff4a33c8a0105ab761d762ba211920a4e09af3e5ae84b51a3c4cf51b
15. 0x60b5befbd81f025904c8a3936b7ba86e3245ad5b37c615d01d42aa3227e3ed2e
16. 0xe2d603cd6f987214550319ad4fa39952b6098bc5c1b20893b6b80e8d82a79934
17. 0x91f12a2db1e2c1be07cbe4de3981a37a33051a36d3c3eee5a260804add6d1d75
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1