Evidence row 1778327

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.refcat.app/mcp"
    ],
    [
      "web",
      "https://refcat.app/en/guides/mcp"
    ]
  ],
  "name": "Refcat",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T16:55:37.92451Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T16:55:37.92451Z",
        "updatedAt": "2026-11-01T16:55:37.92451Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Search 1M real UI flows and 3.3M screens from shipped apps, sites, emails and games.",
      "name": "app.refcat/refcat",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer <API key> from refcat.app/dashboard (free plan includes one key)",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://mcp.refcat.app/mcp"
        }
      ],
      "title": "Refcat",
      "version": "1.0.0",
      "websiteUrl": "https://refcat.app/en/guides/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Search 1M real UI flows and 3.3M screens from shipped apps, sites, emails and games."
}

What the leaf hashes

{"body":"659d4524ff04623cfdb99be6fb1cca56c5c6ced0924de45e77db543be5282274","id":1778327,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793553452632676,"prev":null,"subject":"mcp_registry:app.refcat/refcat","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. 0xb4483e9bea2b42971f0c847a742409e497c5278dbb4dd6d8340f8db348e915d4
2. 0x4541fd2d35baf3320e61f9089a06f2a47e26c5c3ef87d75ae0c2fb26efe4518b
3. 0x5e8fdf956c6d82a4ac3b0d33e52c083ff2af32dd3cc4021d7b9503dffcea208d
4. 0xc49ec1667e2d4dbfc50a81ac381922506be05bc87dd1594ea10cf10ada7ca8a2
5. 0x341be109112a074de094b517177679124fb4e5b1e3b8dccd82601b9e65aaf44d
6. 0x44f105428fb05193172a84fbe538fc7d441b34386d367701da301b70d0a828c3
7. 0x4fb754759a0a3632230813fab63d4842843e9e7ffb96993e6f056a8e2c7c1ccc
8. 0x2314995b899e6bbc9ad03ea2727a815a9544b75dedbf68f449820b8cf51fff5c
9. 0x5c98c4742843e5ac4883fbf7c17cbae6756caa3494c1696ee8fa0c47204a0117
10. 0xd5170f5592a111fdc27fc412100ea86e59111c9587ecea675138b4d8792f41c5
11. 0x556fd2993ae63936ef19f8d0cb248690b8790b804a47e8b1f6052b6403bc2376
12. 0xda43e7c33db4b2a49eac5372d59f78be85b20270ae35f3877840061da57873f3
13. 0x76bd6c29668276bc9bcae1a73c60a4d02ab25f5e47f437d7c2c27bab58a536a3
14. 0xc4208f09c5a97556dbf0e04ca82216f9056e3cf547ebb46cc61036bfd76910cb
15. 0xf6217f3e2344dd9bf8c6e296c4729fbf7611d258b93c45e1bbe5f62e65e8e714
16. 0x8339aa87501c4d4f8b38a13e480a7c563957e09fb5711bed7cf189d6787f960d
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90