addrbookFor publishers
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Evidence row 745015

Observed , by sync.mcp_registry/1.

Kind
listing
About
source_record mcp_registry:io.github.dancerdan15/substack-newsletter-mcp
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
82e1eaf472e54d7968248a2819ebed27474bb1523f402d0e317c40ff3a87605c
Leaf
0x2bce1f349445394f62e9ec2a23173195348c1415ef2313d76acaea1ca838f591

What was observed

{
  "endpoints": [
    [
      "web",
      "https://apify.com/mutualistic_housing/substack-newsletter-mcp"
    ],
    [
      "mcp",
      "https://mutualistic-housing--substack-newsletter-mcp.apify.actor/mcp"
    ]
  ],
  "name": "Substack Newsletter MCP",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T07:28:43.458847Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T07:28:43.458847Z",
        "updatedAt": "2026-10-28T07:28:43.458847Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json",
      "description": "Substack newsletter, posts & podcast search",
      "name": "io.github.dancerdan15/substack-newsletter-mcp",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mutualistic-housing--substack-newsletter-mcp.apify.actor/mcp"
        }
      ],
      "title": "Substack Newsletter MCP",
      "version": "0.1.0",
      "websiteUrl": "https://apify.com/mutualistic_housing/substack-newsletter-mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Substack newsletter, posts & podcast search"
}

What the leaf hashes

{"body":"82e1eaf472e54d7968248a2819ebed27474bb1523f402d0e317c40ff3a87605c","id":745015,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793173283885946,"prev":null,"subject":"mcp_registry:io.github.dancerdan15/substack-newsletter-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).

  1. 0x2bce0e8833ec0c3356c52ad958a64ba6a0abe4e114f2c1528728c31e1d1e85cc
  2. 0x789ef3b7852e8b96249360c61cd400a756d8e73e29ec1b5dbfd27b323e55fdf9
  3. 0x209026dbeefe00b4217e23136f03ce0f2590a9168014262ff0fbecd0d0c2ae8d
  4. 0x37869298fba951f3867cbdac3e7563c2020ffdf9bddfc9d967cb52b7831ef230
  5. 0x1e41f47d9009452f27a3c9889313a7198880990945fff8350fbc8deb61c20a80
  6. 0x173ca20a5a4deb24347d1af2f03d6acf795a37b379ccc931837683e47873a069
  7. 0x8a1d0d49ec570bb74370cf027e9bef7c6d4094449ed8930e864c593cef1ff83d
  8. 0xf04ae4ac2c5acdd3c77d1822b7ae86392e27eaeb39fe74c4b092481dcf60586b
  9. 0x96abc5f3755f94d8ff57d1327cd989e57e537629a80b34722a8c83933a09b417
  10. 0xc95551e4c66950a234762d163cead03d04e91499fd1153fa5827dd9418166e2c
  11. 0xd7f3a7e39561fc6f73405f156f969572d3ec680ec960160964ec81dd8bd36ecc
  12. 0x4a94a3ac3dfed6d233db13adbf426768f2e5b39636e8b941578822cffb4c7708
  13. 0x34e8921023105d1b4efc95c5f5f5debe65fd903bd04b069da2922111cc422fdf
  14. 0x5c170d609340e1f702f31fcdd7742289f0913d4395f688b3409031b758c69eae
  15. 0x8d500b42a7bdba5e17ebd9e6a404f2de5260cf3420865b41e7de8c69434ce413
  16. 0xaeb1503e5d0d358b256ba97a10178c357ddb8f55cc961925ccf0458aae5ebcae
  17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
  18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f
Day root
0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
Chained
0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
Published
On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae

How to check it · This row as JSON