Evidence row 19052

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.placestack.com/mcp"
    ],
    [
      "web",
      "https://placestack.com/docs/agent"
    ]
  ],
  "name": "Placestack",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-12T03:40:46.616109Z",
        "status": "active",
        "statusChangedAt": "2026-10-12T03:40:46.616109Z",
        "updatedAt": "2026-10-12T03:40:46.616109Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "US parcels, owners, sales, zoning rules, building permits and zoning cases.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://placestack.com/icon.svg"
        }
      ],
      "name": "com.placestack/mcp",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.placestack.com/mcp"
        }
      ],
      "title": "Placestack",
      "version": "1.0.0",
      "websiteUrl": "https://placestack.com/docs/agent"
    }
  },
  "source": "mcp_registry",
  "summary": "US parcels, owners, sales, zoning rules, building permits and zoning cases."
}

What the leaf hashes

{"body":"e5183c935c5cfeef26b1f90b4c24d246cfb1ff72af06104e02bca4e08fc408df","id":19052,"kind":"listing","method":"baseline/1","observed_us":1793025331099739,"prev":null,"subject":"mcp_registry:com.placestack/mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x82c3b3ea6b75c01d8e7fc36aacc2a8f8f7d41a770b089a544b570f2a24f5cc1f
2. 0xbc6bd4359a9f192289e8451a0eadd239942008fe5e3fbe3beacd929fe92759a9
3. 0x6cceab923cd13dd6274c03864c8b7de35d5e6112b36bff095b2c9d099db92f21
4. 0x57f76b24623af38967aab63e1b920dbcb33d23bc71968c6f6127208b39d0aec4
5. 0x28dd18d2a78c68c30c7f6c72e7186537eee41e691b0499655ebe2dd0207f8335
6. 0x61e252376d9b7d823745e53cb7581f2e365f0215480cb871fb553f48207dd53a
7. 0x09a649710aaf25253830adbde8e1b599eacab50eed1b3195a693d76c26c5d258
8. 0xfd981b6d893ee1bda662370d6dccec1fcbcda66ad837b83b9e410bc0c1283a49
9. 0xe381981faf4090d2a270681916d4ac58edcc0a97d757c7728ec01890e28d7918
10. 0x68b9c13007eacffd2dc146b099ac237e3cce9c995bb23c895d088539fb9a0df0
11. 0xc99774cfa2126cb7b4c49d6b3fd2510795689e2dec7886bdb1a009218327ef2e
12. 0x08155d70132f82e370214fc5b72194dfa6f5e57670b7bcf74776e8418302897e
13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae