Evidence row 443000

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://bukku.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/bukku/"
    ]
  ],
  "name": "Bukku MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T08:35:10.159318Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:35:10.159318Z",
        "updatedAt": "2026-10-27T08:35:10.159318Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Bukku contacts, accounts, invoices, bills and journals; create contacts and sales invoices.",
      "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/bukku",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://bukku.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/bukku",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Bukku MCP by usefulapi",
      "version": "1.1.0",
      "websiteUrl": "https://usefulapi.io/bukku/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Bukku contacts, accounts, invoices, bills and journals; create contacts and sales invoices."
}

What the leaf hashes

{"body":"aa3cdb2f2c2c1ea5d1541e289d73564f8f6112617a866651656898e05bfcd59c","id":443000,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093257106471,"prev":56508,"subject":"mcp_registry:io.usefulapi/bukku","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x4b76b2224535d50e3bd07e202c57aab3b93ec776ad95e4ce07c422c93ea3dcd4
2. 0xc09ed85da81156180562ad190012c62d9769b07da0729e8269dda149f3f82a68
3. 0xbf4153db5113c994e1cdad9d8c8130c943713460dd974549de51963fd78afb57
4. 0x89697e8573e9d086b8434b1ec1bff7cd12bd75a3380408ad3ab5563f3168bad0
5. 0x1b0621d932b42a9212501c38ef574027200158404fd76137dca269674df22f14
6. 0xfba79beb227fd28023eb3ca58e75ad3d4bf956c9dc0acb9353bc07288013606b
7. 0xcaa58d9663091ebaa6770975692628e20f1f40bc63be7cb0efbc687c35c08113
8. 0xd5c5f60debf0162cf4df22a19e18ad399f5c61fd2a6756e6f2b6bc925ca6df98
9. 0xd0c79335fd71883d4c9c7a16f673bbc6ef7bf0e2ab777f1d0e8a49e1ac8fc8b7
10. 0x7491848012726a2f1e10ac5c2909e1b9ba4e06e701767fa1c879f99a815c1145
11. 0x5b15539a9e45c30d985cffa0f43853909d4e3a207bff9b6e3e35303e52a3c2d2
12. 0xf5ad7dee20c9ad48ff75cc443e6c6ae3a718321f07b826d581afdb243e59305f
13. 0x150dc531eedad3837a4be47dd0bf1a84bf98feb63216c125982425fda525a3fd
14. 0x80ede9e5d428e39db26928b1d08254ff1241f1d7e091fd2e57130fbb4423162b
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4