Evidence row 1481900

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://emailoctopus.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/emailoctopus/"
    ]
  ],
  "name": "EmailOctopus MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T10:52:38.75258Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T10:52:38.75258Z",
        "updatedAt": "2026-10-31T10:52:38.75258Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/emailoctopus",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://emailoctopus.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/emailoctopus",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "EmailOctopus MCP by usefulapi",
      "version": "1.30.0",
      "websiteUrl": "https://usefulapi.io/emailoctopus/"
    }
  },
  "source": "mcp_registry",
  "summary": "Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus."
}

What the leaf hashes

{"body":"89d48e1bf80bf512dc9bc4e668970824a374a4344b1c61de4745fb6298f34d93","id":1481900,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793445358583952,"prev":1257535,"subject":"mcp_registry:io.usefulapi/emailoctopus","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x5984848cdc14677cc70ba7badb36e1b3ba2cd33551a98b216e379f25cc45b2f0
2. 0x872aabcf951c05c11e05371e5cac62228432e3763834e51a598ad5c49152c273
3. 0x625be4749820e1e7067a8da76a049d26f404d594a12134967ae0b5b67470ed71
4. 0x073d03996b41fc3b314eaf1f524ef8401cf8b06fd54c5812ee5de05d5db6426a
5. 0x655c3aff590730e79dfa57006b5935487cfb604059cd1d1f4b41714fcd9131a6
6. 0xb59b221e5a25aabe506746a035f5015052597630e1c350f01a850743bf6676a4
7. 0x27fd230510f526f79d9e9923ff3dc9416594aa0ca6aa4f3d4bea4ec9c4999286
8. 0x3a84dcc3413daa0bb07cb42806567bff92dea0cd8b77e463b010d7f598c9d872
9. 0xb465afddd07c05760102acdb77b1fcf956138b10a0713c8e28c3a92dff859ae5
10. 0xf9a63dc5b3f4acf7667c6ce418086ea8ab0d981b9250fb93c01797de708c4b8b
11. 0x99d74adfda9af0c1c3d756dbe38cbd1f5b633991ac825a374144c54daa8884a1
12. 0x6fadba2948b309bd48a48f64fd9c137089509615974e833bfc862ecf75270ecf
13. 0x3f29202637d7ceda8fabfbf7810410a7ec3b1bc07170e352d26f9ba4ee18d86c
14. 0x4491b6c04d316f311f7fea4ea34ae52fbca9c230259096575b403fb7b124627a
15. 0xb9a00c724331b305deaa876d5d2baf53b847ff3c7ce37abb0ae1653b2534aad5
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0