Evidence row 1773697

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://caisy.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/caisy/"
    ]
  ],
  "name": "Caisy MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T15:39:46.136312Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T15:39:46.136312Z",
        "updatedAt": "2026-11-01T15:39:46.136312Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Run read-only GraphQL queries and list documents and media assets in Caisy.",
      "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/caisy",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://caisy.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/caisy",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Caisy MCP by usefulapi",
      "version": "1.0.0",
      "websiteUrl": "https://usefulapi.io/caisy/"
    }
  },
  "source": "mcp_registry",
  "summary": "Run read-only GraphQL queries and list documents and media assets in Caisy."
}

What the leaf hashes

{"body":"b046345ec0aa9137b7a9cc422caad7834b331fa6727ec82ed071d77f4a40112d","id":1773697,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793549851359858,"prev":null,"subject":"mcp_registry:io.usefulapi/caisy","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xf54a33e62a17c464a4070f5e62268114c5f7725ec565bf280b0b3697105350c6
2. 0xacbfc38025ffc9e322e17dc7720dc7eafade96e1a853c10a1d0481d75a10699f
3. 0x05ea6bd36468ed0c7f95d5bb1e28248e01074b0132323c1651a6225f45e19718
4. 0x3e751e7529678fe3c11bf939d8a570233922701a15c30dc432ba642df1c28a32
5. 0x4479d4fb28819bc0a8d5150955843f46e7c6bb370e49a77188ecb16166463d32
6. 0x6ba38d41f6cf9b832bd69f952a73a625ccec18bc48d699da463626e9d02b930c
7. 0x1ab78ee2611ab0e7a82b01c63f37985ff7ec3247af2f8d67bccd2058372be873
8. 0xd6de54ac08b28af076b83471f4d137c6f9916b2f78d8973de8a26c4c16af6d5e
9. 0xb8ab2dcf7077dd4ef0af7ee9ffb73d5ead733076b9fd31e682fd377d60e6c031
10. 0x631ece897c4d8b1aa4f83e057914de13fecbd6c264632078bc103eda8a9827b1
11. 0x987031ca9675b3f63a997d4f24981e2f0002159e1b6ccf4226bed4eb814723ab
12. 0x1278391fa22e576ce5c6362c943edc1a68b9a92ac18bff7789f8a082a7b194c5
13. 0x0c23c9192bfe154b4061fe80d841228e518702b191bcc9803922e60782f4706b
14. 0x9b4eda8f413d128915df51c98c771c8ee622b35a4252b9c2a803dd51ad66d4c8
15. 0x624db22ddd30d851957cc9d44cc5b314f300cfe0ff69cfbcfe0b2a2df8fdd12c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90